Final Exam Long Semester 2

7/31/2019 Final Exam Long Semester 2

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A user reports being able to access the Internet but not being able to download e-mail from the mail serv

ISP. What should the user check on the user workstation?

the POP3 and SMTP server settings in the e-mail application

the patch cable connections at the back of the workstation and at the wall plate

the DHCP settings in the operating system

the IP address, mask, and default gateway values

the NIC drivers

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Refer to the exhibit. Which two statements describe the data conversation shown? (Choose two.)

The data conversation was started by the HTTP application process running on the client.

The data conversation is identified by TCP port 80 on the client.

The user started the data conversation by sending an e-mail.

The IP address of the Internet server is 192.168.17.43.

The Internet server will send data to port 8547 on the client.

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A network technician is using a network management station to gather data about the performance of de

and links within the ISP. Which application layer protocol makes this possible?

SNMP

FTP
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DHCP

SMTP

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Refer to the exhibit. The network administrator has configured the RTA and RTB interfaces. In order to

hosts that are attached to RTA to reach the server that is attached to RTB, a static route from RTA to the

LAN and a default route from RTB back to RTA need to be configured. Which two commands will the

administrator use to accomplish these tasks on the two routers? (Choose two.)

RTA(config)# ip route 10.16.10.5 255.255.255.252 10.16.10.6



RTB(config)# ip route 10.16.10.6 255.255.255.248 10.16.10.6

RTB(config)# ip route 0.0.0.0 0.0.0.0 S0/0/1

RTB(config)# ip route 0.0.0.0 0.0.0.0 10.16.10.6

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Which type of address is 192.168.17.111/28?

host address

network address

broadcast address
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multicast address


A hacker attempts to reach confidential information that is stored on a server inside the corporate networ

network security solution inspects the entire packet, determines that it is a threat, and blocks the packet fentering the inside network. Which security measure protected the network?

an IDS

an IPS

a host-based firewall

Anti-X software

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After an unsuccessful ping to the local router, the technician decides to investigate the router. The techni

observes that the lights and fan on the router are not operational. In which layer of the OSI model is the p

most likely occurring?

transport

network

data link

physical


Which two subnet masks could be used when subnetting a Class B IP address? (Choose two.)

255.255.255.240

255.255.192.0

255.255.0.0

255.192.0.0

240.0.0.0

255.0.0.0

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Refer to the exhibit. The network administrator needs to configure the Fa0/0 interface of RTB so that hos

RTA can connect to the server that is attached to RTB. Which two commands will the administrator use t

accomplish this task? (Choose two.)

RTB# ip address 192.168.102.98 255.255.255.248

RTB(config-if)# ip address 192.168.102.99 255.255.255.252

RTB(config)# ip address 192.168.102.97 255.255.255.252

RTB(config)# no shutdown

RTB(config-if)# no shutdown

RTB(config-if)# ip address 192.168.102.97 255.255.255.252


What is one purpose of the TCP three-way handshake?

sending echo requests from the source to the destination host to establish the presence of the destinat

determining the IP address of the destination host in preparation for data transfer

requesting the destination to transfer a binary file to the source

synchronizing sequence numbers between source and destination in preparation for data transfer

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Refer to the exhibit. A user who is connected to RTA is trying to telnet to RTB, but the connection is failBased on the output of the show running-config command on router RTB, why is the Telnet session fail

Telnet has not been configured on the console line.

The login command has not been issued on the console line.

No password has been configured on the VTY lines.

A session limit has not been configured for Telnet.


Refer to the exhibit. A network administrator is troubleshooting the serial connection between R1 and R

is no communication between R1 and R2. Based on the output of the show ip interface briefcommand,

the cause of the problem?

There is a misconfiguration of IP addresses.
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There is a mismatch of encapsulation methods.

The no shutdown command should be issued on R2.

The routing protocols are not compatible.

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A user reports being unable to access the Internet. The help desk technician employs a bottom-up approa

troubleshooting. The technician first has the user check the patch cable connection from the PC to the wa

then has the user verify that the NIC has a green link light. What will the technician have the user do nex

Enter an IP address into the WWW browser address bar to see if DNS is at fault.

Use traceroute to identify the device along the path to the ISP that may be at fault.

Verify the IP address, subnet, and gateway settings using ipconfig on the PC.

Connect to the user home router to check firewall settings for blocked TCP ports.


How does a switch interface that uses sticky port security handle MAC addresses?

The addresses are configured manually and are saved in the running configuration.

They are configured manually and are not saved in the running configuration.

They are configured dynamically and are saved in the running configuration.

They are configured dynamically and are not saved in the running configuration.

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A company is developing an Internet store for its website. Which protocol should be used to transfer cr

card information from customers to the company web server?

FTPS

HTTP

HTTPS

WEP2

TFTP

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Which two statements are true about the use of the debug ip rip command on a Cisco router? (Choose t

The debug ip rip command displays RIP routing activity in real time.

The debug ip rip command can be issued at the user EXEC configuration mode.

The debug ip rip command displays a combination of the information that is displayed by the show

route andshow ip protocols commands.

Because of router processor usage, the debug ip rip command should be used only when necessary.

The debug ip rip command should be used instead of the show ip route command whenever possib


Refer to the exhibit. A new branch office has been added to the corporate network and a new router is to

installed to allow branch office users to access the database server at headquarters. How should the serial

interface of the new branch office router be configured to connect to the headquarters router?

branch_23(config-if)# ip address 192.168.5.19 255.255.255.240

branch_23(config-if)# no shutdown

branch_23(config-if)# encapsulation hdlc


branch_23(config-if)# no shutdownbranch_23(config-if)# encapsulation ppp


branch_23(config-if)# encapsulation ppp


branch_23(config-if)# encapsulation ppp



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The show ip route command was executed on one of the routers shown in the graphic and the following

was displayed:

C 192.168.4.0/24 is directly connected, Serial0/0

R 192.168.5.0/24 [120/1] via 192.168.4.2, 00:00:19, Serial0/0

R 192.168.1.0/24 [120/2] via 192.168.3.1, 00:00:20, Serial0/1

R 192.168.2.0/24 [120/2] via 192.168.3.1, 00:00:20, Serial0/1

C 192.168.3.0/24 is directly connected, Serial0/1

From which router was this command executed?

A

B

C

D


A small tire retailer requires a low-cost WAN connection to its headquarters in order to manage its inven

process customer sales in real time. Which WAN connection type is best suited to its needs?

SONET

T3

T1

DSL

leased line


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What are two purposes of DNS? (Choose two.)

to dynamically assign IP addressing information to network hosts

to simplify the administration of host and default gateway addressing on client computers

to assign TCP port numbers to hosts as part of the data transfer process

to resolve human-readable domain names to numeric IP addresses

to replace the static HOSTS file with a more practical dynamic system


Which two processes enable a router to determine paths to destination networks? (Choose two.)

inspection of the source IP address in data packets

ARP requests from connected routers

manual configuration of routes

updates from other routers

DHCP information broadcasts

updates from the SMTP management information base

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Refer to the exhibit. The diagram that is shown represents the network of a manufacturing company with

headquarters at one end of a city and its warehouse at the other end. These two locations are connected v

line. How will the Fohi router dynamically learn routes to the 192.168.16.16/28, 192.168.16.32/28, and


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192.168.16.64/28 subnetworks?

with BGP

with a static route

with a directly connected route

with an interior routing protocol


When customers use credit cards to make purchases at a small business, a modem is heard dialing a telep

number to transfer the transaction data to the central office. What type of WAN serial connection is in us

leased line

packet switched

circuit switched

point-to-point

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Refer to the exhibit. Which combination of cables and symbols is correct?

A - crossover, B - straight-through, C - straight-through

A - crossover, B - rollover, C - straight-through

A - straight-through, B -crossover, C - straight-through

A - straight-through, B -straight-through, C - straight-through


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A - straight-through, B - straight-through, C - crossover

A - rollover, B - straight-through, C - straight-through

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25 Top of FormA network administrator is asked to design a system to allow simultaneous access to the Internet for 250

The ISP can only supply five public IP addresses for this network. What technology can the administrato

accomplish this task?

classful subnetting

variable length subnet masks

classless interdomain routing

port-based Network Address Translation

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Refer to the exhibit. What two conclusions can be drawn about router RTB? (Choose two.)


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The router is connected to a router named Boise.

Router RTB is connected to a Cisco 1841 router.

Router RTB is directly connected to two other routers.

The IP address of the router interface that is connected to router RTB is 192.168.2.6.

The RTB router is connected to two Cisco devices by FastEthernet links.


A new router is connected to an existing network. Which two tasks must be completed on the new router

include it in the dynamic routing process? (Choose two.)

Enter the new network IP address on all existing routers.

Assign an appropriate IP address and subnet mask to the serial interface.

Update the ip host configuration information with the device name and new interface IP address.

Configure a routing protocol with the directly connected network IP addresses.

Configure a routing protocol to include all networks from all existing routers.

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How many host addresses may be assigned on each subnetwork when using the 130.68.0.0 network addr

a subnet mask of 255.255.248.0?

30

256

2046

2048

4094

4096


A user is attempting to do an http://www.cisco.com/ without success. Which two configuration values m

set on the host to allow this access? (Choose two.)

DNS server

WINS server

HTTP server


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default gateway

Netbios

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Refer to the graphic. Which command will configure a static route on Router A to direct traffic from LA

is destined for LAN C?

RouterA(config)# ip route 192.168.4.0 255.255.255.0 192.168.5.2





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Which two protocols allow network devices to report their status and events to a centralized network

management device? (Choose two.)

Syslog

Telnet

HTTP

HTTPS


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SNMP


Refer to the exhibit. Based on the output of the show ip route command, how many hops are between th

and the 192.168.3.0 network?

3

4

5

120

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What are three characteristics of the TCP protocol? (Choose three.)

exchanges datagrams unreliably

is used to send IP error messages

forces the retransmission of unacknowledged packets

creates a virtual session between end-user applications

carries the IP address of the destination host in the TCP header


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is responsible for breaking messages into segments and reassembling them at their destination


Refer to the exhibit. A ping 192.168.1.20 command is issued on workstation A to determine if workstati

can be reached. What two events will occur if this command is successful? (Choose two.)

The router will reply to the echo request with a proxy ping response.

Workstation A will send a UDP ping request message to workstation B.

The router will send a TCP acknowledgment message to workstation A.

Workstation B will send a UDP ping reply message to the router.

Workstation A will send an ICMP echo request message to workstation B.

Workstation B will send an ICMP echo reply message to workstation A.

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How do port filtering and access lists help provide network security?

They prevent specified types of traffic from reaching specified network destinations.

They alert network administrators to various type of denial of service attacks as they occur.

They prevent viruses, worms, and Trojans from infecting host computers and servers.

They enable encryption and authentication of confidential data communications.



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Refer to the exhibit. A network administrator configures a static default route to the Internet on RTA. W

the route not appear in the routing table?

The gateway of last resort is not set.

The serial interface is not operational.

The routing protocol has not been configured.

The default route can only be configured on RTB.

The destination prefix mask should be 255.255.255.255.

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Refer to the exhibit. A NOC technician at an ISP enters the command c:\ping 209.165.201.7. What are t

reasons to use this command? (Choose two.)

map the path to 209.165.201.7

test reachability to 209.165.201.7

locate connectivity problems along the route to 209.165.201.7

identify ISPs that interconnect the NOC and remote host with IP 209.165.201.7

measure the time that packets take to reach 209.165.201.7 and return to the technician's workstation


What is the most commonly used exterior routing protocol?

BGP

RIP

OSPF

EIGRP

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Refer to the exhibit. Which two IP addresses could be assigned to the hosts in the diagram? (Choose two.

192.168.65.31

192.168.65.32

192.168.65.35

192.168.65.60

192.168.65.63

192.168.65.64


A Catalyst switch is used as a temporary replacement for another switch that needs to be repaired. About

minute after the switch has started, the SYST LED on the front of the switch transitions from blinking gr

amber. What is the meaning of the amber SYST LED?

The switch has no configuration file in NVRAM.

The switch has failed POST and must be sent for service.

The switch is functioning properly.

The switch is in half-duplex mode.

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Refer to the exhibit. The network administrator uses the command below to configure a default route on

RTB(config)# ip route 0.0.0.0 0.0.0.0 fa0/0

A ping issued from PC3 is successful to RTB. However, echo request packets arrive at PC1 but the echo

do not make it back to PC3. What will fix this problem?

RTA must be configured to forward packets to the 192.168.2.0 network.

The ip route command needs to be edited so that the next hop address is 10.1.1.5.

The ip route command needs to be edited so that the 192.168.2.1 address is the next hop address.

The ip route command should be removed from the RTB router configuration.

Another default route should be configured on RTA with a next hop address of 10.1.1.6.


Refer to the exhibit. Which command would an administrator use to configure the router name?


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Router# ip hostname Boise

Router# hostname Boise

Router(config-line)# name Boise

Router(config)# hostname Boise

Router> ip hostname Boise

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In an IPv4 environment, what information is used by the router to forward data packets from one interfac

router to another?

destination network address

source network address

source MAC address

well known port destination address


A customer reports connectivity problems to an ISP technician. Upon questioning the customer, the tech

discovers that all network applications are functioning except for FTP. What should the technician suspeproblem?

misconfigured firewall

bad port on switch or hub

misconfigured IP addressing on the customer's workstation

wrong DNS server configured on the customer's workstation

wrong default gateway configured on the customer's workstation

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Which two commands ensure that any password that permits access to the privileged EXEC mode is not

in plain text when the configuration files are displayed? (Choose two.)

Router(config)# enable secret cisco

Router(config)# enable cisco

Router(config)# encryption-password all


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Router(config)# enable login encrypted

Router(config)# enable password encryption

Router(config)# service password-encryption

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Refer to the exhibit. The PC tries to ping router B at 192.168.2.2, but the ping fails. What is the problem

The address of the PC is on the wrong subnet.

The subnet mask of the PC should be 255.255.255.0.

The default gateway should be 192.168.2.1.

The DNS server is incorrect.


Which mode does a router enter when no configuration file is located in NVRAM?

ROMMON

setup

global configuration

privileged exec

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Why are port numbers included in the TCP header of a segment?

to indicate the correct router interface that should be used to forward a segment

to identify which switch ports should receive or forward the segment

to determine which Layer 3 protocol should be used to encapsulate the data

to enable a receiving host to forward the data to the appropriate application

to allow the receiving host to assemble the packet in the proper order


How does TCP ensure the reliable transfer of data?

If data segments are not received from the source, the destination requests that the segments be rese

If an acknowledgment of the transmitted segments is not received from the destination in a predeter

amount of the time, the source resends the data.

TCP uses the SYN-ACK portion of the three-way handshake to ensure that all data has been receive

The TCP Protocol Interpreter process verifies the transmitted data at source and destination.

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The command copy tftp running-config has been entered on the router. What will this command do?

copy the configuration in RAM to a server

copy the configuration file from a server to RAM

copy the configuration file in NVRAM to RAM

copy the configuration file in NVRAM to a server

copy the configuration file from a server to NVRAM

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Refer to the exhibit. Which type of UTP cable should be used to connect Host A to Switch1?

rollover

console

crossover

straight-through

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Refer to the exhibit. Which subnet mask would accommodate the number of hosts indicated for all subne

major network address was 192.168.25.0/24?

255.255.0.0

255.255.224.0

255.255.255.0

255.255.255.224

255.255.255.240

255.255.255.248


What is the purpose of the routing process?

to encapsulate data that is used to communicate across a network

to select the paths that are used to direct traffic to destination networks

to convert a URL name into an IP address


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to provide secure Internet file transfer

to forward traffic on the basis of MAC addresses

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Refer to the exhibit. The network administrator of the building in the graphic needs to choose the type of c

suited to add ServerB to the network. Which cable type is the best choice?

STP

UTP

coaxial

fiber optic


What is used by a routing protocol to determine the best path to include in the routing table?

Convergence time

Default distance

Metric

Type of router

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Refer to the exhibit. Both R1 and R2 are performing static NAT translations for their inside networks. A

is sent from HostA to the web server. What is the source and destination IP addresses when the frame is

at position "A" as displayed in the exhibit?

Source: 10.1.1.2 Destination: 172.30.20.100





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Final Exam Long Semester 2