135348581 CCNA Discovery 4 Module Final Exam

7/27/2019 135348581 CCNA Discovery 4 Module Final Exam

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1. Refer to the exhibit. Following a test plan, the network systems engineer

completes the configuration of an access layer switch and connects three PCs.

The engineer attempts to ping from each PC to the other connected PCs to test

the configuration. Which statement describes the result of the last step?

Host 1 can ping Host 2.



No hosts can ping any other host.

2. 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.

3. 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

4. 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


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privileged mode

5. In a converged network, which two types of traffic would be categorized as

real-time traffic? (Choose two.)

e-mail

file transfer

web browsing

videoconferencing

voice over IP

video on demand

6. 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.

7. Refer to the exhibit. What is the spanning-tree role of all the enabled interfaces

of SW11?

alternate

backup

designated

root

8. 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?


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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.

9. 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

10. 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

11. 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


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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.

12. 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

13. 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.

14. 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


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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.

15. 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.

16. What type of ACL permits outbound traffic, but permits inbound traffic only if it

is a response to the traffic that is initiated from inside the network?

Dynamic

Reflexive

Standard

Extended

time-based

17. 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


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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.

18. 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.

19. 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.

20. A bank is planning to add a secure, authenticated WAN connection to a rural


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branch office. 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

21. 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 VPN

22. 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

23. 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?


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24. 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 Router1

24 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

25. 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

26 A network designer has chosen to specify the use of a dedicated firewall

appliance at the perimeter o 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.

27. 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


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VLAN configuration

tunneling protocols

IPv6 and IPv4 dual stack

encryption algorithms

Frame Relay configuration

28. 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

29. 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

30. 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

31. Refer to the exhibit. Access list 100 is applied inbound to interface serial 0/0/0


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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

32. 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

33. 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

34. When implementing a security policy, which two actions should be included as

part of the security checklist? (Choose two.)

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.

35. Refer to the exhibit. The routers are configured with RIPv2 with default

configurations. When attempting to communicate with other networks, hosts from

172.16.2.0/24 are experiencing connectivity issues. What could be done to resolve


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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.

36. 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.

37. The network designer recommends using RSTP in the design of a new data

center. There are multipl 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.

38. 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

39. Refer to the exhibit. A new host needs to be connected to the switch and be


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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

40. 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.

41. 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 Cisc and non-Cisco routers. Which

routing protocol should be used for the upgrade?

BGP

RIPv1

RIPv2


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EIGRP

42 Which two technologies can provide data integrity in a VPN connection?

(Choose two.)

ESP

DES

MD5

DH1

SHA-1

43. 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 t 1 on the frames that are headed to the company.

44. 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.

45. 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


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protocol is in use to monitor the network performance?

DNS

SNMP

SMTP

DHCP

TFTP

46. A company plans to establish Frame Relay connections between corporate

headquarters and severa 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.

47. 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


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OSPF

RIPv2

48. What Cisco VPN solution allows for simple configuration of VPNs on the

laptops of remote and mobile employees?

EasyVPN Server

EasyVPN Remote

EasyVPN Client

EasyVPN Remote-Access

49. Which two processes allow a smooth transition from IPv4 to IPv6? (Choose

two.)

IPSec

tunneling

dual stack

authentication

anycast addressing

header simplification

50. 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-config command after powering up.

51 Which two pieces of information are needed before an IOS image may be


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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

52. 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? (Choose two.)

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 too much delay.

The IP phones need to be redundantly connected to the switches to prevent

single points of failure at the access layer.

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135348581 CCNA Discovery 4 Module Final Exam