4ccna.weebly.com4ccna.weebly.com/.../ccna4_questions_final_list.docx · Web viewCCNA 4 – INTRODUCING ROUTING AND SWITCHING IN THE ENTERPRISE CCNA4Page 57 FINAL EXAM QUESTIONS 1

CCNA 4 – INTRODUCING ROUTING AND SWITCHING IN THE ENTERPRISE

FINAL EXAM QUESTIONS

1 What are two main components of data confidentiality?checksumdigital certificatesencapsulationencryptionhashing

2 Which network component has the primary function of detecting and logging attacks made against the network?Cisco Security Agentantivirus software scannerintrusion detection systemintrusion prevention system

3

Refer to the exhibit. A network administrator has issued the commands that are shown on Router1 and Router2. A later review of the routing tables reveals that neither router is learning the LAN network of the neighbor router. What is most likely the problem with the RIPng configuration?The serial interfaces are in different subnets.The RIPng process is not enabled on interfaces.The RIPng network command is not configured.The RIPng processes do not match between Router1 and Router2.

4 Which three guidelines would help contribute to creating a strong password policy?Once a good password is created, do not change it.Deliberately misspell words when creating passwords.Create passwords that are at least 8 characters in length.Use combinations of upper case, lower case, and special characters.Write passwords in locations that can be easily retrieved to avoid being locked out.Use long words found in the dictionary to make passwords that are easy to remember.

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5

Refer to the exhibit. The link between the CTRL and BR_1 routers is configured as shown in the exhibit. Why are the routers unable to establish a PPP session?

The clock rate must be 56000.The usernames are misconfigured.The IP addresses are on different subnets.The clock rate is configured on the wrong end of the link.The CHAP passwords must be different on the two routers.Interface serial 0/0/0 on CTRL must connect to interface serial 0/0/1 on BR_1.

6

Refer to the exhibit. Headquarters is connected through the Internet to branch office A and branch office B. Which WAN technology would be best suited to provide secure connectivity between headquarters and both branch offices?

ATM VPN ISDN Frame Relay broadband DSL

7 Which combination of authentication and Layer 2 protocol should be used to establish a link between a Cisco and a non-Cisco router without sending authentication information in plain text?

CHAP and HDLCCHAP and PPPPAP and HDLCPAP and PPP

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8 A technician is talking to a colleague at a rival company and comparing DSL transfer rates between the two companies. Both companies are in the same city, use the same service provider, and have the same rate/service plan. What is the explanation for why company 1 reports higher download speeds than company 2 reports?

Company 2 downloads larger files than company 1 downloads.Company 2 must share the connection to the DSLAM with more clients than company 1 shares.Company 1 is closer to the service provider than is company 2.Company 1 has a lower volume of POTS traffic than company 2 has.

9

Refer to the exhibit. The network administrator creates a standard access control list to prohibit traffic from the 192.168.1.0/24 network from reaching the Internet. The access list must still permit the 192.168.1.0/24 network access to the 192.168.2.0 network. On which router interface and in which direction should the access control list be applied?

interface Fa0/0, inboundinterface Fa0/0, outboundinterface S0/0/0, inboundinterface S0/0/0, outbound

10

An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem?When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are over-written in favor of the newer technology.Incorrect IPv4 addresses are entered on the router interfaces.RIPng is incompatible with dual-stack technology.IPv4 is incompatible with RIPng.

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11

Refer to the exhibit. A network administrator is trying to backup the IOS software on R1 to the TFTP server. He receives the error message that is shown in the exhibit, and cannot ping the TFTP server from R1. What is an action that can help to isolate this problem?

Use correct source file name in the command.Verify that the TFTP server software is running.Make sure that there is enough room on the TFTP server for the backup.Check that R1 has a route to the network where the TFTP server resides.

12

Refer to the exhibit. Partial results of the show access-lists and show ip interface FastEthernet 0/1 commands for router Router1 are shown. There are no other ACLs in effect. Host A is unable to telnet to host B. Which action will correct the problem but still restrict other traffic between the two networks?

Apply the ACL in the inbound direction.Apply the ACL on the FastEthernet 0/0 interface.Reverse the order of the TCP protocol statements in the ACL.Modify the second entry in the list to permit tcp host 172.16.10.10 any eq telnet .

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13 What component of VPN technology combines message text with a key to make the message unreadable by unauthorized receivers?message hashuser passwordRSA signatureencryption algorithm

14 Which variable is permitted or denied by a standard access control list?protocol typesource IP addresssource MAC addressdestination IP addressdestination MAC address

15

Refer to the exhibit. An ACL called Managers already exists on this router. What happens if the network administrator issues the commands as shown in the exhibit?The new ACL overwrites the existing ACL.The network administrator will receive an error message.The existing ACL is modified to include the new command.A second Managers ACL is created that contains only the new command.

16

Refer to the exhibit. RIPv2 has been configured on all routers in the network. Routers R1 and R3 have not received any RIP routing updates. What will fix the issue?Enable RIP authentication on R2.Issue the ip directed-broadcast command on R2.Change the subnet masks to 10.11.12.0/8 and 172.16.40.0/16 on R2.Enable CDP on R2 so that the other routers will receive routing updates.

17 What name is given to the location where a customer network interfaces with a network that is owned by another organization?CPEDCElocal loopdemarcation point

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18

Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the Orlando router to the DC router?DLCI 123DLCI 32110.10.10.2510.10.10.26MAC address of the DC router

19

Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown, what is the most likely cause?interface resetunplugged cableimproper LMI typePPP negotiation failure

20 What will be the result of adding the command ip dhcp excluded-address 10.10.4.1 10.10.4.5 to the configuration of a local router that has been configured as a DHCP server?Traffic that is destined for 10.10.4.1 and 10.10.4.5 will be dropped by the router.Traffic will not be routed from clients with addresses between 10.10.4.1 and 10.10.4.5.The DHCP server will not issue the addresses ranging from 10.10.4.1 to 10.10.4.5.The router will ignore all traffic that comes from the DHCP servers with addresses 10.10.4.1 and 10.10.4.5.

21 What functionality do access control lists provide when implementing dynamic NAT on a Cisco router?which addresses are allowed to be accessed from the inside networkwhich addresses are allowed out of the routerwhich addresses are assigned to a NAT poolwhich addresses are to be translated

22 Which statement about a VPN is true?

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VPN link establishment and maintenance is provided by LCP.DLCI addresses are used to identify each end of the VPN tunnel.VPNs use virtual Layer 3 connections that are routed through the Internet.Only IP packets can be encapsulated by a VPN for tunneling through the Internet.

23

Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and S2 are displayed in the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missing from S2?There is a Layer 2 loop.The VTP domain names do not match.Only one switch can be in server mode.S2 has a higher spanning-tree priority for VLAN 11 than S1 does.

24 An administrator is unable to receive e-mail. While troubleshooting the problem, the administrator is able to ping the local mail server IP address successfully from a remote network and can also successfully ping using the mail server name. At which layer of the OSI model is the problem most likely to be found?physical layernetwork layerdata link layerapplication layer

25 Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routers?ATMFrame RelayHDLCPPPSDLC

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26 A network administrator has changed the VLAN configurations on his network switches over the past weekend. How can the administrator determine if the additions and changes improved performance and availability on the company intranet?Conduct a performance test and compare with the baseline that was established previously.Interview departmental secretaries and determine if they think load time for web pages has improved.Determine performance on the intranet by monitoring load times of company web pages from remote sites.Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks.

27 Which statement accurately describes a role that is played in establishing a WAN connection?ISDN and ATM are circuit-switched technologies that are used to establish on demand a path through the service provider network.Data link layer protocols like PPP and HDLC define how data is encapsulated for transmission across a WAN link.A packet-switching network establishes a dedicated circuit between nodes for the duration of the communication session.Frame Relay switches are normally considered to be customer premises equipment (CPE) and are maintained by local administrators.

28

Refer to the exhibit. What is the meaning of the term dynamic in the output of the command?The bandwidth capability of the interface increases and decreases automatically based on BECNs.The Serial0/0/1 interface acquired 172.16.3.1 from a DHCP server.The mapping between DLCI 100 and 172.16.3.1 was learned through Inverse ARP.DLCI 100 will automatically adapt to changes in the Frame Relay cloud.

29 What is an accurate description of CHAP when used with PPP on a serial connection between two routers?A username and password are sent to the peer router, which replies with an accept or reject message.A challenge message is sent to the peer router, which responds with its username and a calculated value based on a shared secret. This value is then compared by the challenger to its own calculations.An encrypted password is sent to the peer router, which decrypts it and compares it to a shared secret. If the decrypted passwords match, the peer sends the encrypted password back to the initiating router.

30 Which technology is used to dynamically map next hop, network layer addresses to virtual circuits in a Frame Relay network?Inverse ARPLMIDLCI

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31

Refer to the exhibit. A network administrator is trying to connect R1 remotely to make configuration changes. Based on the exhibited command output, what will be the result when attempting to connect to R1?failure to connect due to Telnet not being enabledfailure to connect due to incomplete configuration for Telneta successful connection and ability to make configuration changesa successful connection but inability to make configuration changes because of the absence of an enable secret password

32 A DHCP server is configured with a block of excluded addresses. What two devices would be assigned static addresses from the excluded address range? (Choose two.)a protocol analyzerDNS server for the networknetwork printer that is used by many different usersa laptop that will get a different address each time it boots up

33

Refer to the exhibit. The corporate network that is shown has been assigned network 172.16.128.0/19 for use at branch office LANs. If VLSM is used, what mask should be used for addressing hosts at Branch4 with minimal waste from unused addresses?/19/20/21/22/23/24

34 Compared with IDS systems, what can IPS systems do to provide further protection of

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computer systems?detect potential attacksstop the detected attack from executingupdate OS patches for computer systemsscan computer systems for viruses and spyware

35 A company has its headquarters office in Dallas and five branch offices located in New York, Chicago, Los Angeles, Seattle, and Atlanta. WAN links are used for communications among offices in six sites. In planning the WAN links, the network designer is given two requirements: (1) minimize cost and (2) provide a certain level of WAN link reliability with redundant links. Which topology should the network designer recommend?starfull meshhierarchicalpartial mesh

36

Refer to the exhibit. Every time the administrator reboots this router, the boot process ends in setup mode. What is a possible problem?There is insufficient RAM for the IOS to load on this router.A password recovery process should be done on this router.The bootstrap version and the version of the IOS are different.The IOS image is damaged and must be reloaded using tftpdnld.The configuration register is set to ignore the startup configuration.

37 An administrator issues the command show interfaces s0/1/0 on a router that is configured for Frame Relay. Which console output may indicate an LMI mismatch?Serial0/1/0 is administratively downSerial0/1/0 is up, line protocol is upSerial0/1/0 is up, line protocol is downSerial0/1/0 is down, line protocol is down

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38

Refer to the exhibit. Users who are connected to R1 report that they are unable to establish connectivity to the users who are connected to router R2. A network administrator tests the link with the debug ppp authentication command. Based on the output shown, which statement correctly defines the problem on the link?

R1 uses PAP as a method of authentication, and R2 uses CHAP. R1 uses CHAP as a method of authentication, and R2 uses PAP. R1 uses an incorrect user name or password for CHAP authentication. R2 uses an incorrect user name or password for PAP authentication.

39 Which IP address and wildcard mask combination can be used in an ACL statement to match the 172.16.0.0/30 network?

172.16.0.0 0.0.0.1 172.16.0.0 0.0.0.3 172.16.0.0 0.0.0.7 172.16.0.0 255.255.255.252

40 A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are two advantages that dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.)

reduced jitter reduced costs reduced latency the ability to burst above guaranteed bandwidth the ability to borrow unused bandwidth from the leased lines of other customers

41

Refer to the exhibit. R1 is performing NAT overload for the 10.1.1.0/24 inside network. Host A has sent a packet to the web server. What is the destination IP address of the return packet from the web server?

10.1.1.2:1234 172.30.20.1:1234 172.30.20.1:3333 192.168.1.2:80

42 What function does LCP perform in the establishment of a PPP session?

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LCP brings the network layer protocols up and down. It carries packets from several network layer protocols. It encapsulates and negotiates options for IP and IPX. It negotiates and sets up control options on the WAN data link.

43 An employee of XYZ corporation will begin working from home. The employee has a choice of DSL or cable technology for WAN connectivity. Which connectivity characteristic is accurately described?

Cable transfer rates are dependent on the length of the local loop. DSL provides a high-speed connection over existing copper phone wires. DSL download speeds are affected by high usage in the area. DSL service shares the same frequency range as voice calls. Cable connectivity usually requires new fiber installed for the local loop.

44 Which option represents a best practice for applying ACLs? Named ACLs are less efficient than numbered ACLs. Standard ACLs should be applied inside the core layer. ACLs applied to outbound interfaces use fewer router resources. Extended ACLs should be applied closest to the source that is specified by the ACL.

45 While troubleshooting a problem with an e-mail server, an administrator observes that the switch port used by the server shows “up, line protocol up”. The administrator cannot ping the server. At which layer of the OSI model is the problem most likely to be found?

application layer network layer data link layer physical layer

46 Which two configurations must be completed before an RSA key can be generated on a router? (Choose two.)

a hostname a domain name the SSH version the SSH timeouts local authentication on the VTY lines

47 What type of ACL can be used to force a user to authenticate to the router before accessing a network?

standard dynamic reflexive time-based

48 What is the result when the command security passwords min-length 8 is entered into a router?

All new passwords are required to be a minimum of 8 characters in length. All current passwords are now required to be a minimum of 8 characters in length. Enable passwords must be at least 8 characters but line passwords are unaffected. Nothing will happen until the command service password-encryption is entered. Then

all future passwords must have a minimum of 8 characters.

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49 Because of a remote-procedure call failure, a user is unable to access an NFS server. At what layer of the TCP/IP model does this problem occur?

network layer data link layer physical layer application layer

50 What is the result when the command permit tcp 10.25.132.0 0.0.0.255 any eq smtp is added to a named access control list and applied on the inbound interface of a router?

TCP traffic with a destination to the 10.25.132.0/24 is permitted. Only Telnet traffic is permitted to the 10.24.132.0/24 network Ttraffic from 10.25.132.0/24 is permitted to anywhere on using any port. Traffic using port 25 from the 10.25.132.0/24 is permitted to all destinations.

51 A small bookstore would like to offer wireless connectivity for customers with laptops. Which wireless components or devices will provide connectivity to the customers with the least possible cost to the bookstore?

standalone access points wireless LAN controllers standalone lightweight access points lightweight access point and wireless LAN controller

52 What can be broadcast over the wireless network to help a user connect to the network and use wireless services?

SSID WEP keys VLAN parameters WPA encryption keys VPN authentication information

53 A company has an IT staff that is not highly trained. What two features or technologies must the network designer identify as training needs in order for the staff to understand the basic operation of VPNs? (Choose two.)

access control lists encryption algorithms Frame Relay configuration QoS operation tunneling protocols VLAN configuration

54 A large company plans to add several servers and requires that the servers be reachable directly from the Internet. Which action will help the company accomplish this goal?

Assign to each server a static internal IP address that is mapped statically to a public IP address.

Place all servers in their own Class C private subnet. Provide a private address to each server using DHCP. Assign addresses from a pool of public Class B addresses using DHCP.

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55 Which technical requirement is satisfied when providing QoS for delay sensitive applications? availability manageability scalability security

56 During a review of the proposed bill of materials, an account manager of the network solution company realizes that the systems engineer included a switch with lower cost and reduced capabilities for the access layer than was originally specified by the network designer. When questioned, the systems engineer responds that the switches specified by the designer cannot be purchased within the budget limitations of the customer. Which action should the account manager take?

Inform the customer that the project budget must be increased. Inform the customer that the project cannot be completed given the unreasonable

budget constraints. Communicate any risks that are associated with the equipment substitution and

obtain customer approval to proceed. Because the customer is probably aware that the budget limitations will require

lower cost, less capable equipment, the account manager should do nothing.57 Which protocol is enabled by default to dynamically discover and eliminate Layer 2 loops that are

created by redundant links between switches? CDP DTP STP VTP

58 Which statement describes the use of a network baseline? It creates a high level logical network diagram. It provides a point of reference for future network evaluations. It allows precise identification of the original location of network equipment. It should be established as soon as a problem is detected on the network.

59 What information does an administrator require before saving the running configuration from a router to a TFTP server?

router IP address and the name of the configuration file in NVRAM TFTP server IP address and the size of the configuration file in RAM TFTP server IP address and the name of the configuration file that will be saved router IP address, size of the file and name of the configuration file on the TFTP

server TFTP server IP address, the router IP address, and the router interface through

which the file will be loaded

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60

Refer to the exhibit. The network administrator wishes to use the Cisco Feature Navigator to choose a Cisco IOS image to install on a router that will allow VoIP functionality. Based on the output of the show version command, which statement accurately describes the ability of the router to run the Cisco IOS image selected?

There is enough DRAM and flash. There is enough DRAM but not enough flash. There is not enough DRAM but there is enough flash. There is not enough DRAM and flash.

61 If a router is unable to find a suitable IOS to load into RAM, in what mode does the boot process end? setup mode user mode rommon mode privileged mode

62 Which command can be used to load a new Cisco IOS image on a router? copy startup-config tftp: copy tftp: startup-config copy running-config tftp: copy tftp: flash: copy flash: tftp: copy flash: startup-config

63 A WIC-1T module needs to be installed in a Cisco 1841 router that currently has a WIC-2T module in slot 0. What should the network technician do first?

Install the hot-swappable option module. Turn off the power to the router before installing the new module. Remove the WIC-2T module so that the new module can be installed in slot 0. Shut down all Fast Ethernet ports on the router until the new WIC module

installation is complete. Configure the Cisco IOS software to support an internal trunk link between the two

WIC modules.

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64

Refer to the exhibit. An administrator installs a WIC-2T module into a Cisco 1841 router. Attempts to configure the S0/0/0 interface are unsuccessful. As a first step in troubleshooting the failure, the administrator issues the show version command. What is a possible reason for the failure?

The WIC was not physically installed properly. The WIC was installed into slot 1 instead of slot 0. The interface type and number are invalid on an 1841. The configuration register is the wrong value for adding new modules.

65 Which IOS component can be used to classify and monitor network traffic? CDP NBAR CiscoWorks Network Assistant

66 What is a characteristic of FTP traffic flows? low-volume traffic predictable bandwidth usage large packet sizes for transfers low throughput with high response-time requirements

67

Refer to the exhibit. Which type of application communication model best describes this network?

client-client client-server farm client-enterprise edge client-enterprise server

68 What is a function of software queuing?

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filters traffic on the basis of administrator defined rules stores received traffic and sends packets based on the order that the packets are

received sends packets on the basis of priorities that are manually set transmits packets in a priority sequence that is based on source port

69 In a converged network, which two types of traffic would be categorized as real-time traffic? e-mail file transfer web browsing videoconferencing voice over IP video on demand

70 When implementing an IP telephony solution, why should VLANs be used? to allow the use of a single IP gateway to separate voice from data traffic for ease of prioritization to allow the PBX to use VLAN IDs to filter both voice and data traffic to allow connectivity between traditional phone devices and IP-based telephony

devices71 A network administrator is integrating IPv6 into an IPv4 network by encapsulating one

protocol packet within another protocol. Which transition method is being used? dual stack tunneling proxying and translation NAT with Protocol Translator

72 A school district decides to use the 172.30.0.0/16 network for its LAN networks. The network administrator must create an addressing scheme to support 500 users in the admin office, 200 at the high school, 60 at the elementary school and 28 at the district office. Which VLSM addressing scheme will correctly address the network with minimal waste?

172.30.0.0/20 admin172.30.1.0/21 high school172.30.1.8/22 elementary172.30.1.12/26 district




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73

Refer to the exhibit. The routers are configured with RIPv2 with default configurations. When attempting to communicate with other networks, hosts from 172.31.1.0/24 are experiencing connectivity issues. What could be done to resolve this issue?

Change to a public IP address scheme. Disable automatic route summarization. Change the IP network address on R3 Fa0/0 to 172.16.1.128 /26. Change the subnet mask on the link between R2 and R3 to 255.255.255.0.

74 Which two values represent valid IPv6 addresses? (Choose two.) ::::1 FF01::1 0:0:0:0:0:0:0:1 2001:DB8::47::2A4 2031:0000:04AC:3400:FFE3:0

75

Refer to the exhibit. A network administrator is validating the routing for the new network design. Which command should be used to configure the s0/0/0 interface of the SALES router to advertise the Sales Department networks as one route?

SALES(config-if)# ip summary-address eigrp 100 172.16.0.0 255.255.0.0 SALES(config-if)# ip summary-address eigrp 100 172.16.8.0 255.255.240.0 SALES(config-if)# ip summary-address eigrp 100 172.16.16.0 255.255.240.0 SALES(config-if)# ip summary-address eigrp 100 172.16.31.0 255.255.248.0

76

Refer to the exhibit. Which summarized route would be advertised by R1 to R2? 10.0.0.0/13 10.4.0.0/14 10.5.0.0/13 10.6.0.0/14

77 A network administrator is configuring a router interface with the command R1(config-if)#

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ipv6 address 2001:DB8:C18:1::/64 eui-64. If the MAC address of this Ethernet interface is 01-1C-70-CF-B4-30, what is the host identifier for this interface under EUI-64 format?

11C:7000:00CF:B430 11C:70FE:FECF:B430 11C:70FF:FECF:B430 11C:70FF:FFCF:B430

78

Refer to the exhibit. Following a test plan, the network systems engineer completes the configuration of an access layer switch and connects three PCs to test the configuration. The engineer attempts to ping from each PC to the other connected PCs. Which three statements describe the expected results of pinging from one host to another? (Choose three.)

Host1 can ping Host2. Host1 cannot ping Host2. Host1 can ping Host3. Host1 cannot ping Host3. Host2 can ping Host3. Host2 cannot ping Host3.

79

Refer to the exhibit. A network associate is configuring a new router to provide routing between VLANs. The associate removes the router from the box and connects the Fa0/0 interface to a trunking port on the switch. After the configuration is applied to the router, the traffic between VLANs still fails. What is causing this to occur?

The NWRnStick router needs a routing protocol configured. The NWRnStick router needs additional Fast Ethernet interfaces installed. The subinterfaces of the NWRnStick router should have IP addresses applied. All the subinterfaces of the NWRnStick router should be configured in the same VLAN.

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80 When designing a prototype network for a new server farm, a network designer chooses to use redundant links to connect to the rest of the network. Which business goal will be addressed by this choice?

security scalability availability manageability

81

Refer to the exhibit. A company decides to install a new data center to improve the services available on the network. EIGRP is chosen as a routing protocol. VLAN 100 is the management VLAN. After a prototype network is built, the staff executes basic connectivity tests. The results show very slow convergence after a network failure. Which step should be taken by the engineers to improve the network performance?

Eliminate all trunk links in the network. Configure per-VLAN rapid spanning tree. Configure VLAN 1 as a management VLAN. At the distribution layer, replace EIGRP with RIPv2.

82

Refer to the exhibit. The named ACL "Managers" already exists on the router. What will happen when the network administrator issues the commands that are shown in the exhibit?

The commands overwrite the existing Managers ACL. The commands are added at the end of the existing Managers ACL. The commands are added at the beginning of the existing Managers ACL. The network administrator receives an error that states that the ACL already exists.

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83

Refer to the exhibit. EIGRP has been configured as a routing protocol in the network. Users who are connected on LAN_1 and LAN_2 can ping their default gateways. Users on LAN_1 complain that they are unable to access the resources on the file server that is connected to LAN_2. A technician issues the show ip interface brief command on R1 to verify the status of the interfaces. What information will help the technician troubleshoot the issue?

Interface S0/0/1 line protocol is down. Interface Vlan1 is administratively down. Interface Fa0/1 is missing an IP address. Interface S0/0/0 is configured with an incorrect IP address.

84

Refer to the exhibit. During a test of an EIGRP prototype network, a network administrator issues a show ip protocols command. What two facts can be determined from the output?

The administrative distance is 100. This router has one adjacent neighbor. There are 10 Cisco devices in this prototype network. The auto-summary command was applied on this router. EIGRP is using two values for the calculation of the composite metric. EIGRP on this router will display up to four unequal cost routes to the same

destination.

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85

Refer to the exhibit. A NetworkingCompany designer is reviewing a diagram of a customer network. What two risks or issues can be identified in the topology that is shown?

The firewall router and ISP connection represent a single point of failure. A failure of the switch that connects the Cisco Call Manager to the network will

cause the entire IP telephony system to fail. Using Layer 3 switches to interconnect the data center servers to the IP phones

introduces too much delay. The IP phones need to be redundantly connected to the switches to prevent single

points of failure at the access layer. If one of the Layer 3 switches fails, the Cisco Call Manager will be unreachable.

86 On a Monday morning the help desk at a large company receives an unusually high number of calls reporting no connectivity to the Internet or to any other network resources. Otherwise the PCs are functioning normally. Help desk technicians note that all the calls are from a single department, and all affected users are on the same floor of a single building. Where should the help desk technicians suspect that the problem lies?

workgroup switch PC power supplies patch cords from PCs to network jacks cabling from the network jack to the wiring closet

87 A company is concerned with protecting internal e-commerce servers against external attacks. An application layer firewall is installed at the network edge and a host-based IDS system is installed on the internal LAN. What should be done to ensure a fast response and minimum server downtime in the event of an external attack?

Replace the host-based IDS with an IPS. Place the e-commerce servers in a DMZ. Install a logging server to monitor all attacks. Replace the application layer firewall with a stateful one.

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88

Refer to the exhibit. Which ACL statements, if properly placed, will prevent host 10.10.10.1 from accessing the 172.16.2.0/24 network but will permit the rest of the 10.10.10.0/24 network?

access-list 10 permit 172.16.2.0 0.0.0.255access-list 10 deny 10.10.10.1 0.0.0.0

access-list 10 deny 10.10.10.1 0.0.0.0access-list 10 permit 172.16.2.0 0.0.0.255

access-list 101 deny ip 10.10.10.1 0.0.0.0 172.16.2.0 0.0.0.255access-list 101 permit ip 10.10.10.0 0.0.0.255 172.16.2.0 0.0.0.255

access-list 101 permit ip 10.10.10.0 0.0.0.255 172.16.2.0 0.0.0.255access-list 101 deny ip 10.10.10.1 0.0.0.0 172.16.2.0 0.0.0.255

access-list 10 deny 10.10.10.1 0.0.0.089

Refer to the exhibit. An extended ACL has been created to deny traffic from host 192.168.20.254 to the web server with IP address 209.165.201.30. However, host 192.168.20.254 is allowed access to all resources on network 192.168.30.0/24. According to Cisco best practices, where should the ACL be applied?

ISP Fa0/0 inbound ISP Fa0/0 outbound ISP S0/0/0 inbound R2 Fa0/0 inbound R2 Fa0/0 outbound R2 S0/1/0 outbound

90 A bank is planning to add a secure, authenticated WAN connection to a rural branch office.

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The connection must provide bandwidth of up to 10 Mb/s with QoS supporting VoIP. Which WAN connection type should the network designer recommend?

DSL ISDN leased line Frame Relay

91 While configuring EIGRP on a router, the technician enters this command:Router(config-router)# variance 8What is the effect of entering this command?

It adjusts the cost of all EIGRP routes to 8. It enables unequal cost load balancing on the router. It restricts the number of EIGRP feasible successor routes to 8. It enables EIGRP equal cost load balancing over a maximum of 8 routes. It modifies the number of values used in the composite metric calculation.

92 A designer is creating a test plan to validate a WAN design that is based on Frame Relay technology. Which network device can be used in the prototype network to serve as a Frame Relay switch?

DSLAM CSU/DSU Cisco 2950 switch Cisco router with appropriate IOS

93

Refer to the exhibit. A pre-sales systems engineer receives a diagram of the exhibited WAN implementation from a customer. EIGRP is the routing protocol that is used on the WAN. None of the parameters for EIGRP metric calculation have been modified in any router configurations. Which statement is true about the routing table on router RM?

There is a single route to the 192.168.24.0/24 LAN using the T1 connection. There is a single route to the 192.168.24.0/24 LAN using the DSL connection. There is a single route to the 192.168.24.0/24 LAN using the Metro Ethernet

connection. EIGRP installs all three routes to the 192.168.24.0/24 LAN and load balances the

traffic.94 When implementing a security policy, which two actions should be included as part of the

security checklist? (Choose two.)

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Disable all logging. Enable Telnet on TCP port 23. Use HTTP for web administration. Set timeouts and ACLs on VTY lines. Shut down any unused ports and interfaces.

95 A network administrator has configured Frame Relay on a serial interface and issued the show interfaces serial command. The output shows that the interface is up and the line protocol is up. However, pings to the remote router across the link fail. What should the next step be to ensure that the IP address of the remote router appears in the Frame Relay map table of the local router?

Configure the router using the no inverse-arp command. Ensure that the LMI type is correct for the circuit. Configure the router using the frame-relay map ip command. Verify that the remote router has Frame Relay encapsulation enabled.

96

Refer to the exhibit. A NetworkingCompany engineer is characterizing an existing network for a new customer. The engineer issues a show running-config command on the branch router to gather configuration information. What is the engineer able to determine as a result of viewing the output of this command?

The branch office router has two routes to the main office LANs in the routing table. The default route for the branch office traffic is the serial link to the Edge2 router. A connection through ISP-A will be used to reach the main office LANs if the Frame

Relay network is unavailable. By using both the DSL and the Frame Relay connection, the branch office router will

load balance traffic that is destined for the main office LANs.

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97Refer to the exhibit. What can be determined about the operation of DLCI 101?

It is shut down. Traffic flows in only one direction. Packet size is limited to 2000 bytes. The Frame Relay network is experiencing congestion. All packets moving across the link are marked as discard eligible.

98 A company establishes a Frame Relay connection between corporate headquarters and a branch office. The CIR for the connection is set at 4 Mb/s. Which statement is true about this WAN connection?

The company will not be able to send data faster than 4 Mb/s. If the company sends data faster than 4 Mb/s, some of the data frames will be

flagged with a DE bit. If the company sends data faster than 4 Mb/s, the TSP will change the CIR to zero. When the company sends data faster than 4 Mb/s, the Frame Relay switch will set the

BECN bit to 1 on the frames that are headed to the company.99 The main office of a NetworkingCompany customer currently connects to three branch

offices via three separate point-to-point T1 circuits. The customer network uses RIPv2 as the routing protocol within both the LAN and the WAN. The account manager proposes a change to a Frame Relay network because the costs are lower. A single local loop connection can be installed at the main office with three separate PVCs to connect the branch offices. How can the main office edge router be configured to enable the customer to continue to use RIP as the WAN routing protocol?

Enable Inverse ARP on the serial interface in order to learn the routes to the IP addresses of the remote routers.

To prevent the Frame Relay network from causing a routing loop, disable split horizon on the serial interface.

Create three separate point-to-point subinterfaces on the serial interface and assign a different subnet IP address to each one.

Configure the serial interface with a single interface DLCI number and create frame-relay map statements for each remote site address.

100 What type of Frame Relay subinterface must be used to connect remote sites without having to disable split horizon?

multipoint multiaccess point-to-point nonbroadcast multiaccess

101 What is a function that is associated with the access layer in a hierarchically designed network?

performs routing and packet manipulation supplies redundancy and failover protection provides a high-speed, low-latency backbone serves as a network connection point for IP telephony devices

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102 What is the advantage of choosing EasyVPN for a new VPN implementation? to provide encryption algorithms unavailable in other systems to ensure that remote workers actually use the VPN for connectivity to allow a greater variety of network devices to be used for VPN connections to simplify the configuration tasks for the device that is used as the VPN server

103 A company has help desk staff that is not highly trained in VPNs. What two features or technologies must the network designer identify as training needs in order for the help desk to support secure remote access for teleworkers? (Choose two.)

QoS operation VLAN configuration tunneling protocols IPv6 and IPv4 dual stack encryption algorithms Frame Relay configuration

104 Which statement best describes the VPN feature called split tunneling? It creates separate pathways for different VLANs. It creates two tunnels, one for user traffic and one for management traffic such as CDP

and SNMP. It allows user traffic that is destined for the corporate network to travel across the

VPN tunnel, while traffic destined for the Internet travels through the local LAN of the VPN client.

It allows separate tunnels so that high priority traffic, such as voice and video, uses the higher bandwidth tunnel, while all other user traffic travels on the lower bandwidth tunnel.

105 The network infrastructure at the headquarters of an organization consists of Cisco network devices that are running RIPv1. As part of an upgrade project, a portion of the company backbone will be increased to 10 Gb/s and needs to support unequal cost load balancing between routers. The IP addressing scheme is also changing and needs to support VLSM and CIDR. Which routing protocol should be selected for the network?

BGP EIGRP OSPF RIPv2

106 A NetworkingCompany engineer is on a support call resolving technical problems for a client network. After the issue is resolved, the engineer also provides a training session for the network support staff. What role is the engineer filling on the networking company team?

post-sales field engineer pre-sales engineer network designer account manager

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107

Refer to the exhibit. What can be concluded from the output that is shown? MDF_R1 has a MAC address of 2294:300F:0000. MDF_R1 is connected through FastEthernet0/1 to C2960-24TT-L_IDF1. Device C2960-24TT-L_IDF1 is running Cisco IOS Software Release 12.2(25)SEE2. MDF_R1 is installed in the main distribution facility on floor 24 of building L.

108

Refer to the exhibit. In the Cisco IOS filename that is shown, what is signified by the underlined portion?

version platform file format feature set

109 A network administrator has removed a router from the network for maintenance. A new Cisco IOS software image has been successfully downloaded to a server and copied into the flash of the router. What should the administrator do before placing the router back into service?

Delete the previous version of the Cisco IOS software from flash. Copy the new IOS into NVRAM to create a backup copy. Restart the router and verify that the new image starts successfully. Verify the free space available on the router to store the new IOS image.

110 A network administrator needs to transfer an IOS image to a router using a TFTP server. What should be verified prior to beginning the transfer process?

The TFTP server must connect to the router via a serial connection. Connectivity between the TFTP server and the router should have been established. The TFTP server and the router must be on different networks for the transfer. The TFTP server software must be the same version as the Cisco IOS software.

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111 A network technician needs to install a four-port switch module in an operational Cisco 1841 router that has an available HWIC slot. What should the technician do first?

Turn off the power to the router before installing the new module. Install the hot-swappable four-port switch module directly into slot 1 of the 1841. Move the existing WIC-2T module to slot 1 and install the four-port module in slot 0. Shut down all Fast Ethernet ports on the router until the switch module installation is

complete.112 If traditional phones are used when introducing VoIP to a network, what component would be

required to convert the analog voice from traditional telephone signals into IP packets? Multipoint control unit Power over Ethernet switches a router that acts as a voice gateway Cisco Unified Communications Manager

113 Which characteristic should be considered by a network designer when implementing a VoIP solution?

VoIP traffic is generally classified as low priority. VoIP centrally routes calls in the same manner as a traditional PBX. VoIP traffic is highly reliable because of retransmission of dropped packets. VoIP can make use of QoS features to help reduce interruptions in communication.

114 What supports the ability of streaming video to be sent to a group of viewers simultaneously without congesting the entire network?

traffic queues multicast multiple Layer 4 sessions high priority from QoS

115 Which feature relies on prioritization of network traffic and is used to ensure successful delivery of real-time services?

security reliability redundancy quality of service

116

Refer to the exhibit. What problem is associated with the the addressing scheme of the network?

The WAN links need IP addresses from a different major network. The R1 LAN is incorrect because subnet zero cannot be used with VLSM. The WAN link IP address that connects R1 to R3 has an incorrect mask. The R1 to R3 and R1 to R2 WAN links have IP addresses that overlap. The WAN IP address that connects R1 to R2 overlaps with the R3 LAN IP addresses.

117 A customer of a large multisite organization has asked a network engineer to compare a new

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IPv4 addressing strategy with an IPv6 strategy for their new network implementation. Which tool is appropriate for testing and comparing both addressing schemes?

NBAR Cisco SDM Network Assistant network simulation tool

118 A network administrator wants to configure a router that is running EIGRP so that it will advertise a route that will summarize the networks that are shown. Which network will summarize only these networks?192.168.12.0/24192.168.13.0/24192.168.14.0/24192.168.15.0/24

192.168.0.0/16 192.168.0.0/20 192.168.8.0/21 192.168.12.0/22 192.168.16.0/22

119

Refer to the exhibit. All router interfaces are up and RIP version 2 is configured as the routing protocol. The users in networks 172.16.8.0 /24 and 172.16.9.0/24 are not able to reach users in the 172.16.16.0/24 network. The network administrator examines the routing tables and finds that even though all directly connected networks have been entered in the RIP configuration, not all routes are present. What is the most likely cause of this problem?

Autosummarization is enabled on all routers. The split-horizon rule is disabled on all routers. RIP version 2 does not support classless routing. RIP version 1 should have been used instead of version 2. The 10.10.4.0 networks should be replaced with 192.168.4.0 networks.

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120 Which two processes allow a smooth transition from IPv4 to IPv6? (Choose two.) IPSec tunneling dual stack authentication anycast addressing header simplification

121 A network administrator of a middle-sized company is asked to upgrade the routing protocol of the network to support VLSM and route summarization. The current company network contains both Cisco and non-Cisco routers. Which routing protocol should be used for the upgrade?

BGP RIPv1 RIPv2 EIGRP

122 During prototype testing, a LAN switch fails. As the switch re-initializes using the default parameters, a port that has a PC attached transitions to the forwarding state within one second. What protocol would support this feature?

STP RIP BGP VTP RSTP

123

Refer to the exhibit. Based on the output, which statement is correct? Switch2 is the root bridge. Traffic will use Fa0/1 as an alternative link if Gi0/1 is busy. All traffic with a destination on another switch will exit via Gi0/1. The port cost on Gi0/1 has been changed from its default settings. Interface Fa0/1 on Switch2 has no role in the operation of spanning tree.

124

Refer to the exhibit. To provide better customer service, the network management decides to implement a new server farm, which is located in a data center. Which two technology implementations will address the requirements for strict security policies to prevent unauthorized access to the server farm? (Choose two.)

Install firewalls and IDS capabilities on the network. Apply ACLs to permit only inbound TCP traffic to the servers. Apply filters that permit traffic only to required ports on the servers. Configure a flexible IP addressing structure that allocates a single subnet per VLAN. Configure a fast-converging routing protocol with authentication at the core layer. Create a management VLAN and provide access to the data center devices through

Telnet.125 A wireless survey has been conducted before the deployment of a wireless network. What

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would be the benefit of the survey? provides initial configuration of the access points determines the channel settings of the access points determines the security settings on the access points finds the optimal number and placement of access points

126

Refer to the exhibit. What does the TOR router do with traffic that is destined for a web server with an IP address of 172.18.10.24?

The router sends the traffic out Serial 0/0/0. The router sends the traffic out all interfaces other than the one it came in on. The router places the packets into a queue until a better route is discovered via RIP. The router sends a request to neighboring routers for paths to the 172.18.10.0

network.126 A user in a large office calls technical support to complain that a PC has suddenly lost

connectivity to the network. The technician asks the caller to talk to nearby users to see if other machines are affected. The caller reports that several immediate neighbors in the same department have a similar problem and that they cannot ping each other. Those who are seated in other departments have connectivity. What should the technician check as the first step in troubleshooting the issue?

the power outlet to the PC that is used by the caller. the trunks between switches in the wiring closet. the status of the departmental workgroup switch in the wiring closet. the cable that connects the PC of the caller to the network jack. the cable connection between a PC and a network outlet that is used by a neighbor.

127 A company would like to ensure that the failure of a single access switch does not disrupt service to the mail servers located in the data center. What can be done to ensure maximum connectivity to the mail servers?

Enable CDP to ensure all neighboring devices are known. Create a separate RSTP specifically for the mail servers. Configure a routing protocol so that paths to all Layer 3 devices are cached. Install redundant access links between the servers and the access layer switches.

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128

Refer to the exhibit. An extended ACL has been created to deny traffic from the 192.168.35.0/24 network to the web server with IP address 209.165.201.15. According to Cisco best practices, where should the ACL be applied?

RTB Fa0/0 inbound RTC S0/0/1 inbound RTD Fa0/0 outbound RTC S0/1/0 outbound

129 Which two security best practices are recommended for a router deployed as a WAN endpoint? (Choose two.)

Turn off unnecessary services. Enable HTTP for web administration. Configure easy to remember passwords. Apply timeouts on VTY, AUX, and console ports. Enable Telnet access to allow for remote management.

130 Company XYZ requires a WAN solution that provides flexible bandwidth options and supports one physical interface at the head office that would provide simultaneous connectivity to various remote sites. The distance from each site should not make the solution more expensive. Which WAN technology meets the requirements of the company?

DSL cable Frame Relay T1 leased line

131 A technician adds the command Router(config-router)# variance 5 to a router using EIGRP as the routing protocol. What is the result of entering this command?

enables unequal cost load balancing adjusts the metric of all EIGRP routes to 5 restricts the number of EIGRP feasible successor routes to 5 activates the use of all K values in the composite metric calculation enables EIGRP equal cost load balancing over a maximum of 5 routes

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132

Refer to the exhibit. A pre-sales system engineer receives a diagram of the current WAN from a customer. EIGRP is the routing protocol used on the WAN. Based on the default operation of EIGRP, which statement is true about the routing table on router R1?

There is a single route to the 192.168.16.0/24 LAN using the T1 connection. There is a single route to the 192.168.16.0/24 LAN using the DSL connection. There is a single route to the 192.168.16.0/24 LAN using the Metro Ethernet

connection. EIGRP installs all three routes to the 192.168.16.0/24 LAN and load balances the traffic.

133 Which feature of network design and configuration would be considered a weakness? Choosing a flat network model. Choosing to implement an IPS instead of IDS. Choosing to disable Telnet and allow only SSH connections for remote access to the

core routers. Choosing not to broadcast the SSID for wireless access points.

134

Refer to the exhibit. What can the field engineer conclude about the EIGRP authentication between Router1 and Router2?

Authentication will fail because only one key is configured. Authentication will succeed and EIGRP updates can be exchanged. Authentication will fail because the key chain names do not match. Authentication will fail because the key chain names must match the router names.

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135

Refer to the exhibit. A networking engineer is characterizing an existing network for a new customer. The engineer issues a show running-config command on the R1 router to gather configuration information. What is the engineer able to determine as a result of viewing the output of this command?

The R1 router has two specific routes to the main office LANs in the routing table. The default route for the R1 router points to the Edge1 router. The R1 router will load-balance traffic to the main office LANs by using both DSL and

Frame Relay. A connection through ISP-1 will be used to reach the main office LANs if the Frame

Relay network is unavailable.136 What are two accurate descriptors of a DLCI? (Choose two.)

Frame Relay Layer 2 address one DLCI allowed per local loop locally significant circuit endpoint signaling standard between DTE and DCE establishes the data transfer rate through a Frame Relay network

137 The network designer recommends using RSTP in the design of a new data center. There are multiple redundant Layer 2 switches and links contained in the new design. What is the benefit of using RSTP rather than STP in this situation?

Redundant links are not blocked. Routing tables converge more quickly. Spanning Tree convergence times are reduced. Fewer redundant links are required to maintain connectivity.

138 Several key servers in an organization must be directly accessible from the Internet. What addressing policy should be implemented for these servers?

Use dynamic NAT to provide addresses for the servers. Place all of the servers in their own Class C private subnet. Use DHCP to assign addresses from the pool of Class B addresses. Assign static internal addresses and public external addresses to each of the servers.

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139 A network designer has chosen to specify the use of a dedicated firewall appliance at the perimeter of a large network. Why would the designer use a dedicated firewall rather than using the Cisco IOS firewall feature set on the existing router?

Traffic filtering is needed on the internal LAN. Multiple levels of access to the network are needed. The DMZ requires packet filtering and port blocking. *Heavy network traffic will be handled best by using a dedicated device.

140 An administrator is charged with providing guaranteed quality of service for certain applications. What technical requirement does QoS help to satisfy?

*availability manageability security scalabilty

141 A network engineer is at a customer site. After resolving technical problems in the network, the engineer provides a training session for the support staff. Which job function best fits the activities of this network engineer?

network designer account manager pre-sales engineer *post-sales field engineer

142

Refer to the exhibit. What can be concluded from the output that is shown? MDF_2811 has a MAC address of 2294:300F:0000. *Device C3750-24_IDF2 is running Cisco IOS Software Release 12.3(23)SEE2. //A Cisco 3750 switch is connected to the FastEthernet1/0/1 port on MDF_2811. MDF_2811 is installed in the main distribution facility on floor 28 of building 11.

143 What is the purpose of a network baseline? to add access control capabilities to the network to reserve a spot in a rack for installing network equipment to create a configuration template for quickly configuring new equipment *to establish a point of reference for comparison with current performance

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144

Refer to the exhibit. The network administrator has used the Cisco Feature Navigator to choose a Cisco IOS image to install on a router. Given the exhibited output of the show version command, which statement is true about the capacity of the router to use this Cisco IOS image?

There is enough DRAM and flash. There is not enough DRAM and flash. There is enough DRAM but not enough flash. *There is not enough DRAM but enough flash.

145 Which two pieces of information are needed before an IOS image may be loaded on a router from a TFTP server? (Choose two.)

*the IP address of the TFTP server the current name of the IOS image on the router the operating system of the TFTP server the name of the configuration file in NVRAM *the name of the IOS image on the TFTP server encapsulation of the router interface that is connected to the TFTP server

146 During the boot process and using the default sequence, what is the first location where the router will look for the IOS?

ROM *flash NVRAM TFTP server

147 Why is it difficult for network designers to predict the patterns and behavior of file transfer traffic?

*The traffic is user initiated. File size is typically very small. Dedicated bandwidth is essential. All file transfer traffic is queued as high priority.

148 What functionality does NBAR provide to network technicians? provides data which can be used to create a network diagram allows for monitoring and managing network devices *allows for classification and monitoring of network traffic displays the IOS versions and IP addresses on neighboring devices

149 What type of system connects to the PSTN and uses a PBX to route calls via analog or digital

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lines? VPN VoIP IP telephony *traditional telephony

150 Which statement is true about the pairing of services and transport layer protocols for FTP and VoIP?

FTP applications and VoIP use TCP at the transport layer. FTP applications and VoIP use UDP at the transport layer. *FTP applications use TCP at the transport layer while VoIP uses UDP at the transport

layer. FTP applications use UDP at the transport layer while VoIP uses TCP at the transport

layer.151 Which technology will prioritize traffic based upon the technical requirements of IP telephony?

PoE *QoS RPC RTP VPN

152 A network engineer is prototyping a new IP addressing and summarization strategy for a new network that will be integrated into the existing infrastructure. Which method is appropriate for testing the addressing scheme?

using the production network of the customer using actual network equipment in a lab using the Cisco Network Assistant *using a network simulation tool

153

Refer to the exhibit. A customer has a problem with connectivity in the network. Based on the IP addressing scheme, what is causing the problem?

The WAN links need IP addresses from a different major network. *The WAN link that connects R1 to R2 overlaps with the R3 LAN. The WAN links that connect R1 to R3 and R1 to R2 have incorrect masks. The R1 LAN is incorrect because subnet zero cannot be used with VLSM.

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154 A network administrator is given a network address of 192.168.1.64/26 to create four subnets with seven hosts in each subnet. Which subnet mask should be used?

255.255.255.224 *255.255.255.240 255.255.255.248 255.255.255.252

155 What value is an alternative representation of the IPv6 address 2001:DB80:0000:0000:0C41:3EFF:FE00:0000?

2001:DB8::C41:3EFF:FE: 2001:DB80::C41:3EFF:FE00:: *2001:DB80::C41:3EFF:FE00:0 2001:DB80:0:0:0:C41:3EFF:FE::

156 A network designer must select a routing protocol for the network of a customer. The currently installed network contains both Cisco and non-Cisco routers, and there is no budget to replace them. The designer plans on implementing both VLSM and route summarization in the new network design. Which two protocols can provide the necessary functionality for this LAN? (Choose two.)

RTP RSTP RIPv1 *RIPv2 EIGRP *OSPF

157

Refer to the exhibit. What result can be expected for STP in VLAN1? DSW1 is the root bridge. DSW3 would become root upon failure of DSW1. *DSW2 is the root bridge. DSW3 would become root upon failure of DSW2. DSW3 is the root bridge. DSW1 would become root upon failure of DSW3. DSW3 is the root bridge. DSW2 would become root upon failure of DSW3.

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158

Refer to the exhibit. The users on the 192.168.10.128/26 network are not allowed Internet access. Where is the most efficient location to place an extended ACL?

inbound on S0/0/0 of R1 outbound on S0/0/1 of R1 *inbound on Fa0/0 of R2 outbound on Fa0/0 of R2 inbound on S0/0/1 of R2

159

Refer to the exhibit. A technician at the ISP site asks the network administrator at the client site to change the CHAP password as part of the routing security maintenance. After the administrator makes the change and reboots the router, the technician issues a show interfaces serial 0/0/0 command. According to the output, what can be concluded about the serial connection between the client site and ISP site?

The router at the client site is still in the process of rebooting. *The administrator probably configured the wrong password. The administrator has not issued a no shut command on the serial interface. The administrator probably configured the wrong IP address for the serial interface.

160 Refer to the exhibit. A network engineer issues the show ip route command to validate that the newly designed network is working as anticipated. Which users will the Admin_LAN be able to communicate with?

Users on the Admin_LAN will not be able to communicate with users on either LAN. *Users on the Admin_LAN will be able to communicate with the users on the

Faculty_LAN. Users on the Admin_LAN will be able to communicate with the users on the

Student_LAN. Users on the Admin_LAN will be able to communicate with the users on the

Faculty_LAN and the Student_LAN.

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161

Refer to the exhibit. A company with four servers in its server farm has not enabled PVRST on the switches that connect to the server farm segment. What will happen within the network if a primary link goes down?

Access to the the servers will be lost. *Convergence time will be slow and possibly cause applications to time out. Routing protocols will not send the triggered updates in the event of a failure of the

root bridge. Switches that connect the servers to the network will not be found by other switches in

the network.162 A company has branch offices at several locations across the country. Which security

implementation would provide a cost-effective, secure, and authenticated connection to centralized internal resources that are located at company headquarters, without requiring configuration for individual employees at the branch offices?

leased line with PPP authentication *site-to-site VPN access control list remote-access VP

163

Refer to the exhibit. What will be the result of entering the commands as shown in the exhibit?

RIPng will not be enabled on interface fa0/0 because the network address is a broadcast address.

RIPng will not be enabled on this interface because the IPv6 address is only /64 bits long.

*RIPng will be enabled on interface fa0/0 and will advertise the configured network. The IPv6 interface configuration requires a network statement for the network. The IPv6 routing instance must be called RTA not RT0.

164 To reduce unwanted incoming traffic from the outside, a network technician is tasked with establishing the filtering rules for the network firewall. Which traffic should be allowed?

incoming ICMP traffic all incoming connections to internal servers *incoming responses to traffic that is generated from the inside incoming connections from the outside that duplicate inside addresses

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165

Refer to the exhibit. Based on the EIGRP configuration that is shown, what can the field engineer conclude about the EIGRP authentication between RouterA and RouterB?

Authentication will fail because only one key is configured. Authentication will fail because the key chain names do not match. *Authentication will succeed and EIGRP updates can be exchanged. Authentication will fail because the key chain names must match the router names.

166 Which two statements accurately describe the result of entering the command BRT(config-if)# frame-relay map ip 10.1.10.1 35 on a router? (Choose two.)

The remote router updates the Frame Relay map table with DLCI 35 to reach the 10.1.10.0 network.

Inverse ARP is used to add an entry for 10.1.10.1 into the Frame Relay map table via the use of DLCI 35.

DLCI 35 replaces the MAC address in the ARP table for entry 10.1.10.1. *A Layer 2 address is statically mapped to a Layer 3 address. *Router BRT uses DLCI 35 to forward data to 10.1.10.1.

167 A company plans to establish Frame Relay connections between corporate headquarters and several branch offices. The network designer recommends using one physical interface on the edge router to support the new Frame Relay connections. The company currently uses RIPv2 for routing and plans no changes to the RIPv2 configuration. What should be done to ensure that each branch office link is a separate subnet and that routing updates are successful between corporate headquarters and the branch offices?

Configure multipoint subinterfaces on the physical interface. *Configure point-to-point subinterfaces on the physical interface. Configure a single subinterface to establish multiple PVC connections. Configure the physical interface to share one DLCI to multiple remote sites and

their connections.168 What is used locally by a router to identify each Frame Relay PVC?

LMI *DLCI IP address MAC address

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169 What are two suggested best practices to implement when securing network devices? Configure VLAN 1 as the native VLAN. Disable unused ports on switches. Enable SSH and disable Telnet. Consolidate guest traffic and internal employee traffic. Ensure that logs are stored locally on routers.

170 A company uses the Frame Relay network to establish a VPN connection between headquarters and the branch office. The company wants to add a backup link in case the Frame Relay connection fails. The backup link will use the business DSL connection through another ISP. How should the router be configured to include the backup link?• Create a static route with the administrative distance of 1.• Create a floating static route.• Add a new route to the routing protocol configuration.• Create a second default route for the backup path.

171

Refer to the exhibit. What is the spanning-tree role of all the enabled interfaces of SW11?• Alternate• Backup• Designated• Root

172 What type of ACL permits outbound traffic, but permits inbound traffic only if it is are sponse to the traffic that is initiated from inside the network?• Dynamic• Reflexive• Standard• Extended• Time-based

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173

Refer to the exhibit. A network administrator is configuring a new router to provide routing between VLANs. The administrator removes the router from the box and connects the Fa0/0 interface to a trunking port on the switch. After the configuration is applied to the router, as shown in the exhibit, the traffic between VLANs fails. What is causing this to occur?• The R1 router needs a routing protocol configured.• The subinterfaces of the R1 router should have IP addresses applied.• The R1 router needs three additional Fast Ethernet interfaces installed.• The subinterfaces of the R1 router should be configured in the same VLAN.

174

Refer to the exhibit. Which EIGRP configuration commands should a network administrator enter on router R1 to correctly advertise a single summary route to router MAIN for the campus LAN?

router eigrp 11network 10.5.0.0network 192.168.0.0no auto summaryinterface s0/1/0ip address 10.5.0.1 255.255.255.252

router eigrp 11network 192.168.0.0 0.0.3.255network 192.168.8.0 0.0.3.255network 10.5.0.0 0.0.0.3no auto summaryinterface s0/1/0ip address 10.5.0.1 255.255.255.252

router eigrp 11network 10.5.0.0 0.0.0.3network 192.168.0.0 0.0.3.255no auto summaryinterface s0/1/0ip address 10.5.0.1 255.255.255.252ip summary-address eigrp 11 192.168.0.0 255.255.252.0

router eigrp 11network 10.5.0.0 0.0.0.3network 192.168.8.0network 192.168.28.0network 192.168.20.0no auto summaryinterface s0/1/0ip address 10.5.0.1 255.255.255.252ip summary-address eigrp 11 192.168.0.0 255.255.224.

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175

Refer to the exhibit. What is an accurate description of the first neighbor that is displayed in the output?• 24 port 2950 switch with a non-default native VLAN• 24 port 2950 switch that is connected to Fa0/0 on Router• 124 port 2950 switch that is assigned to the administrator-defined VTP domain• 24 port 2950 switch with interface GigabitEthernet0/1 that is operating at 1000 Mb/s

176 During prototype testing, the network designer performs a test to determine the ability of the network to recover from a link or device failure. Which design goal is validated if the test is a success?• Scalability• Manageability• Availability• Security

177 At the distribution layer of a hierarchical network, what are two advantages of using Layer 3 devices instead of Layer 2 switches? (Choose two.)• provides reliable connectivity to end users• creates fewer IP subnets to configure and manage• reduces the number of redundant links required• provides connectivity between different VLANs• enables traffic filtering based on subnet addresses

178

Refer to the exhibit. Access list 100 is applied inbound to interface serial 0/0/0 on the SOHO Router1. Which traffic will be denied by the configuration?• DNS traffic from host A to the Internet• FTP traffic from host A to the Internet• ICMP traffic from the ISP to server 1• traffic from the ISP to the server on port 23

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179

Refer to the exhibit. A new host needs to be connected to the switch and be assigned to VLAN 2. Router RA is attached to the switch via a trunk and is configured as shown. What IP address should be assigned to this new host?• 192.168.1.1 /26• 192.168.1.22 /28• 192.168.1.32 /28• 192.168.1.44 /28• 192.168.1.47 /28• 192.168.1.55 /28

180 Which two technologies can provide data integrity in a VPN connection? (Choose two.)• ESP• DES• MD5• DH1• SHA-1

181 Which two statements are true about the enhancements IPv6 has over IPv4? (Choose two.)• IPv6 does not support broadcasts.• IPv6 uses a simplified header structure.• IPv6 does not require private addresses.• IPv6 uses fixed length address strings.• IPsec for IPv6 is not compatible with IPsec for IPv4.

182 As part of network monitoring, a network administrator receives an alert that the CPU usage of the core router reaches 90% several times a day. Which protocol is in use to monitor the network performance?• DNS• SNMP• SMTP• DHCP• TFTP

183 What Cisco VPN solution allows for simple configuration of VPNs on the laptops of remote and mobile employees?• EasyVDPN Server• EasyVPN Remote• EasyVPN Client• EasyVPN Remote-Access

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184 How should a network engineer determine if a router module is hot-swappable? Insert the module with the power on, then check to see if the associated LED is lit. Check the router and interface module data sheets on CCO to determine hot-

swappability. Insert the module with the power on, then issue the show running-config command to

verify that all new interfaces are recognized. Power off the router, insert the module, then verify new interfaces using the show

running-configcommand after powering up.185

Refer to the exhibit. A networking company designer is reviewing a diagram of a customer network. What are the two problems that need to be resolved in the topology that is shown?

The firewall router and ISP connection represent a single point of failure. If one of the Layer 3 switches fails, the Cisco Call Manager will be unreachable. A power supply failure of the server block switch will cause the entire IP telephony

system to fail. Using Layer 3 switches to interconnect the server block servers to the IP phones

introduces toomuch delay. The IP phones need to be redundantly connected to the switches to prevent single

points of failureat the access layer.186 A configuration file needs to be loaded into the RAM of a router from a TFTP server. What

should an administrator know before accomplishing this task? the router IP address and the operating system that is used by the TFTP server the TFTP server IP address and the name of the configuration file on the server the router IP address and the name of the router configuration file in NVRAM the TFTP server IP address and the value of the configuration register on the router

187 A web-based retail company is considering updating its WAN connection with new technologies that are offered by the ISP. What testing platform should be used by the network team of the company to validate the performance and capacity of the new technology using real world data?

pilot prototype emulation software simulation software

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188 Which protocol allows redundant Layer 2 links without switching loops? DHCP HSRP MPLS RSTP

189 In configuring CHAP authentication for PPP, what is important to know about the format of usernames and passwords?

Only the passwords are case sensitive. The usernames and passwords are case sensitive. Neither the usernames nor the passwords are case sensitive. The usernames are case sensitive but the passwords are not.

190 What is the result of implementing a Frame Relay service with a CIR value of zero? Data will not cross the Frame Relay WAN. All frames that enter the Frame Relay WAN will be marked as DE. Only frames that exceed the local access rate will be marked as DE. CIR is disabled, which allows all data traffic to pass through the Frame Relay WAN.

191

Refer to the exhibit. Before the encapsulation was changed to Frame Relay, the administrator verified physical connectivity by successfully pinging the remote router. After the encapsulation was changed, the administrator attempted to ping the remote router on the Frame Relay circuit but was not successful. A show frame-relay pvc command was issued. What could be the problem?

The DLCI is incorrect. The IP address is incorrect. The interface needs to be re-enabled after the encapsulation is changed. The network is not included in the routing table.

192 What is a benefit of using CIDR to summarize multiple classful networks into a single network? It reduces the number of entries in routing tables. It allows RIPv1 to function as a classless routing protocol. It allows the routing protocol to define a more accurate best path selection. It increases the amount of information transmitted in routing protocol updates.

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193

Refer to the exhibit. What is the purpose of this configuration? auditing the network traffic with NBAR monitoring the network traffic with NetFlow capturing network traffic to send to a syslog server applying the named ACLs egress and ingress to the Ethernet interfaces

194

Refer to the exhibit. The routers are configured with RIPv2 with default configurations. When attempting to communicate with other networks, hosts from 10.0.11.0/24 are experiencing connectivity issues. What could be done to resolve this issue?

Change to a public IP addressing scheme. Use EIGRP with its default configuration as the routing protocol. Change the subnet mask on the link between R2 and R3 to 255.255.255.0. Disable automatic route summarization on all routers in the network.

195 A network administrator is determining which network address can be assigned to a new remote site with thirty-one users. The logical topology documentation is referenced and it is concluded that the 172.24.32.0/19 and 172.24.128.0/25 address blocks are available. Which network address could be assigned to the new remote site while wasting the fewest addresses?

172.24.32.0/27 172.24.48.0/26 172.24.64.64/26 172.24.128.64/27 172.24.160.32/27 172.24.192.0/26

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196 Which IOS command can a network designer use to help document the active routing status of an existing network?

show vlan show ip route show running-config show cdp neighbors detail

197 What is meant by "tunneling" in the context of migrating from IPv4 to IPv6? obtaining IPv6 addresses from an IPv4 DHCP server allowing both protocol stacks to run on the same network device encapsulating one protocol packet within another protocol enabling direct communication between hosts that use different versions of the IP

protocol198

Refer to the exhibit. Based on the show cdp neighbors detail command, which interface on Switch1 is connected to Router1?

FastEthernet0/1 FastEthernet0/2 Serial0/0 Serial0/0/1

199 A router has been removed from the network for maintenance. A new Cisco IOS software image has been successfully downloaded to a server and copied into the flash of the router. What should be done before placing the router back into service?

Back up the new image. Copy the running configuration to NVRAM. Delete the previous version of the Cisco IOS software from flash. Restart the router and verify that the new image starts successfully.

200 What is a characteristic of voice traffic in a converged network? It is assigned secondary priority to data traffic. It is processed in real time and cannot be retransmitted. It consists of large packets with long, irregular data flows. It uses the error-checking features of TCP to ensure good voice quality.

201 After a WIC is installed in a two-slot router, the network engineer issues the show running-config command, but the newly installed interfaces in the WIC cannot be seen in the router output. What is a possible reason why the newly installed interfaces are not shown?

The new interfaces are in a shutdown state. The WIC was put into slot 0 instead of slot 1. The WIC was not pushed completely into the slot. The show running-config command cannot be used to validate the presence of

installed interfaces.202 What is the main purpose of the access layer in a hierarchically designed network?

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perform routing and packet manipulation supply redundancy and failover protection provide a high-speed, low-latency backbone serve as a network connection point for end-user devices

203 While troubleshooting a Frame Relay link, the network administrator executes the show ip interface brief command on both sides of the PVC link. All interfaces show a configured IP address and that the line protocol is up. Further investigation reveals that the IP address of the remote router does not appear in the Frame Relay table. Which step would solve this problem?

Change the LMI type on the local router. Verify that the DLCI number is the same on both sides of the PVC. Configure the router using the frame-relay map ip command. Verify that the remote router has Frame Relay encapsulation enabled.

204 A company has just transitioned from traditional telephony to an IP Telephony solution for their voice requirements. What statement describes a characteristic of the new system?

connects through a PBX to the PSTN replaces a digital system with an analog one combines data and voice into a converged network requires manual configuration for adding, moving or changing phones enables web applications and phone directories to be available to every PC on the

network205 Which component in a Frame Relay WAN would set the BECN bit in the Frame Relay header if

congestion is experienced? source DTE device Frame Relay switch destination DTE device router through which communication was first initiated

206

Refer to the exhibit. A network technician wishes to allow all traffic to internal LANs except traffic from network 10.0.0.0/10 that enters the router on its leased-line Internet connection. What will be apparent once these commands are entered into the router?

The wild card mask is wrong. The required objective will have been achieved. The access-list is applied in the wrong direction. All traffic that enters the router on s0/0/0 will be blocked.

207

Refer to the exhibit. An extended ACL has been created to deny traffic from the 192.168.30.0/24 network to the web server with IP address 209.165.201.30. According to Cisco best practices, where should the ACL be applied?

R3 Fa0/0 inbound R3 S0/0/1 outbound R2 S0/0/1 inbound ISP Fa0/0 outbound

208 A customer has asked a network engineer to prototype the new IP addressing and summarization strategy for a large, multisite network implementation. Which tool is

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appropriate for testing the complete addressing scheme? Cisco SDM network simulation tool actual network equipment in a lab current network of the customer

209 What best describes the function of QoS in data networks? prioritizes data traffic over all other types of traffic increases bandwidth on a link to ensure voice quality provides preferred service to specified network traffic automatically assigns the highest priority to web and database traffic

210 Which IOS component can be used for classification and protocol discovery of network traffic and applications in use?

CDP NBAR ACL logging Network Assistant

211 When should a network designer specify that a dedicated firewall appliance be used at the perimeter of the network rather than a router with a Cisco IOS software-based firewall feature set?

There are multiple servers in the DMZ. The network is large in size and network traffic can overload the device. Traffic filtering is needed on the internal network. Multiple levels of access to the network are needed.

212 At which layer in hierarchical network design should ACLs be implemented? Core layer Access layer Network layer Distribution layer Presentation layer

213 A network designer has chosen to specify the use of a dedicated firewall appliance at the perimeter of a large network. Why would the designer use a dedicated firewall rather than using the Cisco IOS firewall feature set on the existing router?

The DMZ requires packet filtering and port blocking. Heavy network traffic will be handled best by using a dedicated device Traffic filtering is needed on the internal network. Multiple levels of access to the network are needed.

214 An administrator is adding voice and video service capabilities to an existing network. What design requirement is being satisfied by this situation?

Availability Manageability Security scalability

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215 Which task would typically only require services that are located at the access layer of the hierarchical design model?

Placing a VoIP call to a business associate in another country Connecting to the corporate web server to update sales figures Using a VPN from home to send data to the main office server farm Responding to an e-mail from a co-worker in another deparment Printing a meeting agenda on a local departmental network printer

216 A new WIC is installed in an available router slot. At what point during the router startup process does the router test the card for hardware problems?

After the configuration from NVRAM is loaded into RAM After the configuration from NVRAM is loaded into ROM When the bootstrap program is loaded into RAM During the POST

217 Which three characteristics are associated with the core layer of the Cisco hierarchical network design?

Packet filtering High availability Monitoring of DMZ traffic Use of EtherChannel Redundant components High-level policy enforcement

218 What are two advantages of using a simulation tool to test and IP addressing scheme? Address configuration errors can be corrected using out-of-band connections Placement of subnets and route summarization can be verified An engineer can test physical security without leaving the office or lab The addressing scheme can be tested for scalability The effects of combining new with existing infrastructure can be measured It provides real-time monitoring of a production network

219 During prototype testing, the network designer performs a test to determine the ability to store device configurations and statistics on local databases. Which design goal is validated if the test is a success?• Scalability• Manageability• Availability• Security

220 A company decides to deploy a virtual private network (VPN) to connect remote workers and branch offices to corporate headquarters. What is the best description of the type of connectivity the company is ready to implement?

a VPN that uses LANs to connect remote sites or users a VPN that uses a public network to connect remote sites or users a VPN that uses a wireless LAN over the Internet to connect remote sites or users a VPN that uses a dedicated connections, such as leased lines, to connect remote sites

or users

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221 In the Cisco Enterprise Architecture, which module would include web and e-commerce servers for access by users external to the organization?• campus core• enterprise edge• enterprise branch• enterprise campus

222 What is one advantage of a full mesh topology at the core layer of the enterprise network compared with a partial mesh topology?• It adds scalability to the corporate network.• It provides fully redundant links to connecting modules.• It lowers the impact and risk of DoS attacks from the Internet.• It increases the manageability of the network devices in the core layer.

223

Refer to the exhibit. What three actions will R1 take after receiving a frame from host H1 which is destined for host H2? (Choose three.)

The data frames will be forwarded out interface FastEthernet 0/1 of R1. No data frames will be forwarded out of either FastEthernet interface of R1. Router R1 will replace the destination IP address of the packets with the IP address of

host H2. Router R1 will place the MAC address of host H2 in the destination MAC address of

the frames. Router R1 will place the MAC address of the forwarding FastEthernet interface in the

place of the source MAC address. Router R1 will place the IP address of the forwarding FastEthernet interface in the

place of the source IP address in the packets.

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224

Refer to the exhibit. Which username and password combination will correctly configure PPP authentication on routers RTR_A and RTR_B?

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225 What will prevent workstations with unauthorized MAC addresses from connecting to the network through a switch?

STP VTP RSTP BPDU port security

226 What level of service is specified by the CIR from a Frame Relay service provider? the minimum available clock rate the number of available virtual circuits the maximum average data transfer rate the minimum amount of bandwidth available

227 Which is a valid representation of the IPv6 address 4110:00b9:0000:0000:0303:0000:11fa:771a? 4110:b9::303:11fa:771a 4110:00b9:3:3::11fa:771a 4110:00b9::303::11fa:771a 4110:b9::303:0:11fa:771a

228

Refer to the exhibit. EIGRP is correctly configured on router Remote and router HQ. A network technician is configuring a backup route on router Remote to network 198.133.219.32 via router Branch. Which configuration option will successfully create the backup route?

Remote(config)# ip route 198.133.219.32 255.255.255.224 198.133.219.9 Remote(config)# ip route 198.133.219.32 255.255.255.224 198.133.219.9 85 Remote(config)# ip route 198.133.219.32 255.255.255.224 198.133.219.9 90 Remote(config)# ip route 198.133.219.32 255.255.255.224 198.133.219.9 100

229 What is a signaling standard that is used for managing and maintaining the connection between a CPE router and the service provider Frame Relay switch?

ARP CIR DLCI Inverse ARP LMI

230 What should be considered in the design of a wireless LAN on a corporate campus? the vendor of all employee wireless NICs the cables that are used for LAN connectivity the number of wireless NICs required on enterprise servers the messaging features that are used on employee cell phones the location of the concrete pillars and walls between the offices

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231 What are the primary design goals for the core Layer? to provide centralized server farm and VoIP services to provide dynamic routing services, filtering, and traffic flow management to provide 100% uptime, maximization of throughput, and facilitation of network

growth to provide static routing, wireless access points for the network, and security for the

edge devices232 What feature of EIGRP should be considered when selecting a routing protocol?

EIGRP cannot secure routing updates. It does not scale well for large networks. It is designed for WAN connections only. It can only be configured on Cisco devices.

233 Which two Frame Relay header bits are used to indicate possible virtual circuit congestion? BECN C/R DE DLCI FECN

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