ENetwork Final Exam

1

Refer to the exhibit. Communication for hosts X and Y is restricted to the local network. What is the reason for this?

The gateway addresses are broadcast addresses.







2
What is the effect of the command copy running-config tftp?

copies the configuration currently in RAM to a remote machine

3

Refer to the exhibit. What function does router RT_A need to provide to allow Internet access for hosts in this network?

address translation



4

Refer to the exhibit. Host A is able to access resources on the local LAN but is unable to access any resources on the Internet. What is the likely cause of this problem?

The default gateway is on a different subnet from the host.









5
A small design company connects to the Internet through a DSL connection. The telephone company suggests assigning 192.168.1.0/24 to the internal network. What additional feature must be available to give the workstations on the internal network access to the Internet?

The company needs an internal DHCP server.

6
Which range of port numbers are reserved for services that are commonly used by applications that run on servers?

0 to 1023

7
When must a router serial interface be configured with the clock rate command?

when the interface is functioning as a DCE device

8
To enhance security in a network, the network administrator uses these commands:

Router(config)# line console 0
Router(config-line)# password j1mdi2
Router(config-line)# login

What two conclusions are evident from these commands? (Choose two.)

Users who attempt to connect to the console port of the router must enter a password.
The entries permit access through the console by the use of j1mdi2 as the password.

9
Which prompt is associated with the privileged exec mode?

R1#

10
What is described by the network access layer of the TCP/IP model?

rules for the handoff from the internet layer to the network access protocols

11

Refer to the exhibit. The ping 127.0.0.1 command is issued on the local host. What do the ping results indicate?

The TCP/IP stack on the local host operates properly.

12
A technician is setting up a workgroup for six users and wants to allow users to share files without setting up a server. Which application layer protocol will provide for peer-to-peer file sharing in a workgroup?

SMB

13
Which application layer protocol allows administrators to log into a server from remote locations and control a server as though logged in locally?

Telnet

14
Which router component will have contents erased when the command erase startup-config is issued?

NVRAM

15
What are the three operations that the transport layer uses to ensure reliability? (Choose three.)

tracking transmitted data
providing routable addressing
retransmitting of any unacknowledged data

16
A technician is asked to secure the privileged EXEC mode of a switch by requiring a password. Which type of password would require this login and be considered the most secure?

enable secret

17

Refer to the exhibit. Host1 is in the process of setting up a TCP session with Host2. Host1 has sent a SYN message to begin session establishment. What happens next?

Host2 sends a segment with the ACK flag = 1, SYN flag = 1 to Host1.
18

The tracert 10.1.3.2 command was issued on computer A. Computer A can ping other addresses on the local subnet. Computer A sent the first ICMP packet toward computer B with a TTL value of 1. A protocol analyzer that was running on computer B showed that the packet never reached its destination. Why did the packet not reach the destination?

The TTL for the packet was decreased to zero by R1.

19

Refer to the exhibit. Which type of network design is shown?

peer-to-peer



20

Refer to the exhibit. Which two layers of the OSI model describe the same functions as the transport and internet layers of the TCP/IP model? (Choose two.)

transport layer
network layer










21

Refer to the exhibit. When host A sends a frame addressed for host D, which hosts will receive the frame?

only host D









22
Which communication tool allows real-time collaboration?

instant messaging

23
Which OSI layer manages data segments?

transport layer

24
An organization has been assigned network ID 10.10.128.0 and subnet mask 255.255.224.0. Which IP address range can be used for this organization?

10.10.128.0 to 10.10.192.255

25
A routing issue has occurred in your internetwork. Which of the following type of devices should be examined to isolate this error?

router

26
Which three addresses belong to the category of public IP addresses? (Choose three.)

196.1.105.6
132.11.9.99
46.1.1.97

27
A user enters http://www.cisco.com/web1.htm in the address line of a browser. Which statement is true about this transaction?

The "http" portion indicates the protocol that is being used.

28

Refer to the exhibit. A technician is working on a network problem that requires verification of the router LAN interface. What address should be pinged from this host to confirm that the router interface is operational?

192.168.254.1






29
How many host addresses may be assigned when using the 128.107.0.0 network address with a subnet mask of 255.255.248.0?

2046

30

Refer to the exhibit. RouterB is configured properly. The Ethernet interface Fa0/0 of RouterA is configured with the use of the commands that are shown. However, a ping from the Fa0/0 interface of RouterA to the Fa0/0 interface of RouterB is unsuccessful. What action should be taken on RouterA to solve this problem?

Use the no shutdown command on the FastEthernet interface Fa0/0.

31

Refer to the exhibit. Host A is unable to reach host B on the remote network. A technician attempted to ping the local gateway and the ping was successful. To verify the host configuration, the technician issued the ipconfig command. What is the likely cause of the problem?

The default gateway on host A is incorrectly configured.




32
A network administrator is configuring several switches for a network. The switches have similar configurations and only minor differences. The administrator wants to save all commands that are issued on the first switch to a text file for editing. Which transfer option should be selected in HyperTerminal?

33
What can the user do from the command prompt, Router(config-line)# ?

Configure one of the physical or virtual lines.

34
Which topology divides the collision domain and provides full media bandwidth to the hosts in the network?

35
Which two factors contribute to the increased throughput when all nodes of a LAN are connected to a switch instead of a hub? (Choose two.)

full-duplex operation
collision-free environment

36
Which two types of media can provide bandwidth up to 1 Gb/s? (Choose two.)

1000 BASE-TX
1000 BASE-SX

37
Which application belongs to the category of the client/server model?

using Telnet to access a router

38
Which option represents a point-to-point logical topology diagram?

39
Which prompt represents the appropriate mode used for the copy running-config startup-config command ?

Switch-6J#

40

Refer to the exhibit. A network administrator remotely accesses the CLI of RouterB from PC1 using Telnet. Which statement is true about this connection?

The connection is made through a VTY session on the router.

41
Which option shows the PDU that contains the Layer 3 source and destination addressing for a packet?

42

Refer to the exhibit. Which option correctly identifies the network address, range of host addresses, and the broadcast address for the network that contains host A?

43
Which physical component is used to access and perform the initial configuration on a new unconfigured router?

44
What command can be used to troubleshoot domain name resolution issues?

nslookup

45

Refer to the exhibit. What two facts can be determined from the session information that is displayed? (Choose two.)

The protocol is a connection-oriented protocol.
This exchange is part of the three-way handshake.



46

Refer to the exhibit. A network technician wants to connect host A to the console of a Cisco switch to initialize the configuration. What type of cable is required for this connection?

rollover cable

47
A network technician has made a UTP cable that is terminated as T568A on one end and T568B on the opposite end. What type of cable has been constructed?

crossover

48

Refer to the exhibit. An employee wants to access the organization intranet from home. Which intermediary device should be used to connect the organization intranet to the Internet to enable this access?

router



49
A technician makes several changes to the running configuration on a router, but the desired results are not achieved. The technician issues the reload command. What action will be taken by the router?

The user will be prompted to save changes before the router restarts.

50

Refer to the exhibit. Host A attempts to establish a TCP/IP session with host C. During this attempt, a frame was captured with the source MAC address 0050.7320.D632 and the destination MAC address 0030.8517.44C4. The packet inside the captured frame has an IP source address 192.168.7.5, and the destination IP address is 192.168.219.24. At which point in the network was this packet captured?

leaving Dallas
51

Refer to the exhibit. For connecting two routers with an Ethernet crossover cable, which interface should be used?

C




52

Refer to the exhibit. A network technician is trying to determine the correct IP address configuration for Host A. What is a valid configuration for Host A?

IP address: 192.168.100.20; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.100.17

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ENetwork Chapter 11

1   

The serial connection shown in the graphic needs to be configured. Which configuration commands must be made on the Sydney router to establish connectivity with the Melbourne site? (Choose three.)

•     Sydney(config-if)# ip address 201.100.53.2 255.255.255.0
•     Sydney(config-if)# no shutdown
•     Sydney(config-if)# clock rate 56000

   
2   
In a Cisco device, where is the IOS file stored prior to system startup?

•     Flash

   
3   
Immediately after a router completes its boot sequence, the network administrator wants to check the routers configuration. From privileged EXEC mode, which of the following commands can the administrator use for this purpose? (Choose two.)

•     show startup-config
•     show running-config

   
4   

Refer to the exhibit. Which names correctly identify the CLI mode represented by the prompt for Switch-East4#? (Choose two.)

•     privileged executive mode
•     enable mode

5   
Which three terms correctly define the forms of help available within the Cisco IOS? (Choose three.)

•     hot keys
•     context-sensitive
•     command syntax check

6   
In a Cisco router, when do changes made to the running-configuration take effect?

•     as the commands are entered

   
7   
On a Cisco router, which interface would be used to make the initial configuration?

Jawaban No.7

   











8   

Refer to the exhibit. A network administrator on HostA has problems accessing the FTP server. Layer three connectivity testing was successful from HostA to the S1 interface of RouterB. Which set of commands will allow the network administrator to telnet to RouterB and run debug commands?

•     RouterB(config)# enable secret class
•     RouterB(config)# line vty 0
•     RouterB(config-line)# password cisco
•     RouterB(config-line)# login

   
9   
What command is used to change the default router name to Fontana?

•     Router(config)# hostname Fontana

10   
Which combination of keys would be used at the CLI prompt to interrupt a ping or traceroute process?

•     Ctrl-Shift-6

   
11   

The connection between routers B and C has been successfully tested. However, after rebooting router C, the administrator noticed the response time between networks 10.10.3.0 and 10.10.4.0 is slower. Ping between the two routers is successful. A trace route indicates three hops from router B to router C. What else can be done to troubleshoot the problem?

•     Issue a show ip interface brief command on router C.

12   

Refer to the exhibit. What additional command is required to allow remote access to this switch from hosts outside the local network?

•     NA-SW1(config)# ip default-gateway address

   
13   
A network administrator needs to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a router to manage it. Which access method should be chosen?

•     SSH

14   

Refer to the exhibit. What command will place the router into the correct mode to configure an appropriate interface to connect to a LAN?

•     UBAMA(config)# interface FastEthernet 0/1

15   

Refer to the exhibit. A student is responsible for the IP addressing, configuration and connectivity testing of the network shown in the graphic. A ping from host B to host C results in a destination unreachable but a ping from host B to host A was successful. What two reasons could account for this failure based on the graphic and partial router output for the Dallas router? (Choose two.)

•     The S0/0/1 IP address of Dallas is improperly configured.
•     The clock rate is missing on the serial link between Dallas and NYC.

16   
Users in the network are experiencing slow response time when doing file transfers to a remote server. What command could be issued to determine if the router has experienced any input or output errors?

•     show interfaces

   
17   

Refer to the exhibit. The output is shown for the show ip route command executed on Router A. What does the IP address 192.168.2.2 represent?

•     IP assigned to the serial port on Router B

18   

Refer to the exhibit. A technician applies the configuration in the exhibit to a clean router. To verify the configuration, the technician issues the show running-config command in the CLI session with the router. What lines should the technician expect to see in the router output from the show running-config command?

•     enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0
•     enable password 7 14141E0A1F17
•     line console 0
•     password 7 020507550A

19   
When network services fail, which port is most often used to access a router for management purposes?

•     Console

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ENetwork Chapter 10

1   
What makes fiber preferable to copper cabling for interconnecting buildings? (Choose three.)

•     greater distances per cable run
•     limited susceptibility to EMI/RFI
•     greater bandwidth potential

   
2   
A company is planning to subnet its network for a maximum of 27 hosts. Which subnet mask would provide the needed hosts and leave the fewest unused addresses in each subnet?

•     255.255.255.224

   
3   
A network administrator is required to use media in the network that can run up to 100 meters in cable length without using repeaters. The chosen media must be inexpensive and easily installed. The installation will be in a pre-existing building with limited cabling space. Which type of media would best meet these requirements?

•     UTP

   
4   

Refer to the exhibit. Assume that all devices are using default settings. How many subnets are required to address the topology that is shown?

•     1

   
5   
What does the term "attenuation" mean in data communication?

•     loss of signal strength as distance increases

   
6   

Refer to the exhibit. A student is setting up a home network primarily used for extensive file transfers, streaming video, and gaming. Which network device is best suited to these types of activities in the topology shown?

•     switch

7   
Which device is used to create or divide broadcast domains?

•     router

   
8   
Which three statements are true about the role of routers in the network? (Choose three.)

•     They segment broadcast domains.
•     They interconnect different network technologies.
•     Each router interface requires a separate network or subnet.

   
9   

Refer to the exhibit. Which three statements identify the type of cabling that would be used in the segments that are shown? (Choose three.)

•     Segment 1 uses a patch cable.
•     Segment 3 uses horizontal cabling.
•     Segment 4 uses vertical cabling.

10   
Which option identifies the primary interface which would be used for initial configuration of a Cisco router?

•     console interface

11   
To establish a console connection from a computer to a Cisco router, which cable wiring option would be used?

•     rollover cable

   
12   
How many host addresses may be assigned on each subnetwork when using the 130.68.0.0 network address with a subnet mask of 255.255.248.0?

•     2046

   
13   

Refer to the exhibit. A network technician has been allocated the 192.168.1.0/24 private IP address range for use in the network that is shown in the exhibit. Which subnet mask would be used to meet the host requirements for segment A of this internetwork?

•     255.255.255.224

   
14   

Refer to the exhibit. How many subnets are required to support the network that is shown?

•     3

   
15   
Which subnet mask would be assigned to the network address of 192.168.32.0 to provide 254 useable host addresses per subnetwork?

•     255.255.255.0

   
16   
What are two common methods for setting a UTP Ethernet port to MDI or MDIX operation? (Choose two.)

•     the automatic detection and negotiating of MDI/MDIX operation of the port
•     the enabling of the mechanism to electrically swap the transmit and receive pairs

17   

Refer to the exhibit. What destination IP address will PC1 place in the header for a packet destined for PC2?

•     192.168.3.54

18   

Refer to the exhibit. Based on the IP configuration shown, what would be the result of Host A and Host B attempting to communicate outside the network segment?

•     host B would be successful, host A would fail

   
19   
What type of network cable is used between a terminal and a console port?

•     rollover

   
20   
Which three types of connectors are commonly associated with Cisco's V.35 serial cables? (Choose three.)

•     DB 60
•     Winchester 15 pin
•     smart serial

   
21   

Refer to the exhibit. A student working in the lab selects a cable that is wired as shown. Which connection types can successfully be made with this cable? (Choose two.)

•     connecting two routers together via their fast ethernet ports
•     connecting two devices with the same interface type at Fast Ethernet speeds

22   

Refer to the exhibit. A network administrator has decided to use packet capture software to evaluate all traffic from the student subnet on the way to the Internet. To ensure that all packets are captured, what network device should be used to connect the monitoring station to the network between R1 and R2?

•     hub

   
23   

Refer to the exhibit. Which three statements are true about the exhibited topology? (Choose three.)

•     Five broadcast domains are present.
•     Host B is using a crossover cable to connect to the router.
•     Five networks are shown.

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ENetwork Chapter 9

1   
Convert the binary number 10111010 into its hexadecimal equivalent. Select the correct answer from the list below.

•     BA

   
2   
Which of the following describe interframe spacing? (Choose two.)

•     the minimum interval, measured in bit-times, that any station must wait before sending another frame
•     the time allowed for slow stations to process a frame and prepare for the next frame

   
3   
When a collision occurs in a network using CSMA/CD, how do hosts with data to transmit respond after the backoff period has expired?

•     The hosts return to a listen-before-transmit mode.

   
4   
After an Ethernet collision, when the backoff algorithm is invoked, which device has priority to transmit data?

•     any device in the collision domain whose backoff timer expires first

   
5   
Which of the following is a drawback of the CSMA/CD access method?

•     Collisions can decrease network performance.

   
6   

Refer to the exhibit. The switch and workstation are administratively configured for full-duplex operation. Which statement accurately reflects the operation of this link?

•     No collisions will occur on this link.

   
7   
Why do hosts on an Ethernet segment that experience a collision use a random delay before attempting to transmit a frame?

•     A random delay helps prevent the stations from experiencing another collision during the transmission.

8   

In the graphic, Host A has reached 50% completion in sending a 1 KB Ethernet frame to Host D when Host B wishes to transmit its own frame to Host C. What must Host B do?

•     Host B must wait until it is certain that Host A has completed sending its frame.

9   
Ethernet operates at which layers of the OSI model? (Choose two.)

•     Physical layer
•     Data-link layer

10   
What does the IEEE 802.2 standard represent in Ethernet technologies?

•     Logical Link Control sublayer

   
11   
Which statements correctly describe MAC addresses? (Choose three.)

•     copied into RAM during system startup
•     contains a 3 byte OUI
•     6 bytes long

   
12   

Refer to the exhibit. Host_A is attempting to contact Server_B. Which statements correctly describe the addressing Host_A will generate in the process? (Choose two.)

•     A frame with the destination MAC address of Router_A.
•     A packet with the destination IP of Server_B.

   
13   
Host A has an IP address of 172.16.225.93, a mask of 255.255.248.0, and a default gateway of 172.16.224.1. Host A needs to send a packet to a new host whose IP is 172.16.231.78. Host A performs the ANDing operation on its address and subnet mask. What two things will occur? (Choose two.)

•     Host A will broadcast an ARP request for the MAC of the host 172.16.231.78.
•     Host A will change the destination IP of the packet to 172.16.224.1 and forward the packet.

   
14   
Which two features make switches preferable to hubs in Ethernet-based networks? (Choose two.)

•     minimizing of collisions
•     increase in the throughput of communications

15   
Ethernet operates at which layer of the TCP/IP network model?

•     network access

   
16   
What are three functions of the upper data link sublayer in the OSI model? (Choose three.)

•     identifies the network layer protocol
•     makes the connection with the upper layers
•     insulates network layer protocols from changes in physical equipment

   
17   
What three primary functions does data link layer encapsulation provide? (Choose three.)

•     addressing
•     error detection
•     frame delimiting

   
18   
What are the two most commonly used media types in Ethernet networks today? (Choose two.)

•     copper UTP
•     optical fiber

   
19   

Refer to the exhibit. Which option correctly identifies content that the frame data field may contain?

•     network layer packet

   
20   
What is the primary purpose of ARP?

•     resolve IPv4 addresses to MAC addresses

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