CCNA 1 Final Exam V5.0 Answers

1. Which field in an IPv4 packet header will typically stay the same during its transmission?

Flag

Time-to-Live

Packet Length

Destination Address

 

2. What is the purpose of ICMP messages?

to inform routers about network topology changes

to ensure the delivery of an IP packet

to provide feedback of IP packet transmissions

to monitor the process of a domain name to IP address resolution

 

3. Which three IP addresses are private ? (Choose three.)

10.20.30.1

172.32.5.2

192.167.10.10

172.30.5.3

192.168.5.5

224.6.6.6

 

4. Which two notations are useable nibble boundaries when subnetting in IPv6? (Choose two.)

/62

/64

/66

/68

/70

 

5. Which parameter does the router use to choose the path to the destination when there are multiple routes available?

the lower metric value that is associated with the destination network

the lower gateway IP address to get to the destination network

the higher metric value that is associated with the destination network

the higher gateway IP address to get to the destination network

 

6.

A network administrator is configuring access control to switch SW1

Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator uses a console connection to connect to the switch, which password is needed to access user EXEC mode?

letmein

secretin

lineconin

linevtyin

 

7.

What is the significance of the asterisk

Refer to the exhibit. What is the significance of the asterisk (*) in the exhibited output?

The asterisk shows which file system was used to boot the system.

The asterisk designates which file system is the default file system.

An asterisk indicates that the file system is bootable.

An asterisk designates that the file system has at least one file that uses that file system.

 

8. During normal operation, from which location do most Cisco switches run the IOS?

RAM

flash

NVRAM

disk drive

 

9. An administrator uses the Ctrl-Shift-6 key combination on a switch after issuing the ping command. What is the purpose of using these keystrokes?

to restart the ping process

to interrupt the ping process

to exit to a different configuration mode

to allow the user to complete the command

 

10. What is a characteristic of the LLC sublayer?

It provides the logical addressing required that identifies the device.

It provides delimitation of data according to the physical signaling requirements of the medium.

It places information in the frame allowing multiple Layer 3 protocols to use the same network interface and media.

It defines software processes that provide services to the physical layer.

 

11. What is the auto-MDIX feature on a switch?

the automatic configuration of an interface for 10/100/1000 Mb/s operation

the automatic configuration of an interface for a straight-through or a crossover Ethernet cable connection

the automatic configuration of full-duplex operation over a single Ethernet copper or optical cable

the ability to turn a switch interface on or off accordingly if an active connection is detected

 

12. What is the correct order for PDU encapsulation?

What is the correct order for PDU encapsulation

 

13. Fill in the blank.

During data communications, a host may need to send a single message to a specific group of destination hosts simultaneously. This message is in the form of a ..................message.

Correct Answer: Multicast

 

14.

A TCP segment from a server has been captured by Wireshark

Refer to the exhibit. A TCP segment from a server has been captured by Wireshark, which is running on a host. What acknowledgement number will the host return for the TCP segment that has been received?

2

21

250

306

2921

 

15. What is the effect of configuring the ipv6 unicast-routing command on a router?

to assign the router to the all-nodes multicast group

to enable the router as an IPv6 router

to permit only unicast packets on the router

to prevent the router from joining the all-routers multicast group

 

16. Which technology provides a solution to IPv4 address depletion by allowing multiple devices to share one public IP address?

ARP

DNS

NAT

SMB

DHCP

HTTP

 

17. What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)

error correction through a collision detection method

session control using port numbers

data link layer addressing

placement and removal of frames from the media

detection of errors through CRC calculations

delimiting groups of bits into frames

conversion of bits into data signals

 

18. Which procedure is used to reduce the effect of crosstalk in copper cables?

requiring proper grounding connections

twisting opposing circuit wire pairs together

wrapping the bundle of wires with metallic shielding

designing a cable infrastructure to avoid crosstalk interference

avoiding sharp bends during installation

 

19.

Match the description withe the associated IOS mode

Correct Answer:

Match the description withe the associated IOS mode (Answer)

 

20. What types of addresses make up the majority of addresses within the /8 block IPv4 bit space?

private addresses

public addresses

multicast addresses

experimental addresses

 

21. On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?

FastEthernet0/1

VLAN 1

vty 0

console 0

 

22. How does a Layer 3 switch differ from a Layer 2 switch?

A Layer 3 switch supports VLANs, but a Layer 2 switch does not.

An IP address can be assigned to a physical port of a Layer 3 switch. However, this is not supported in Layer 2 switches.

A Layer 3 switch maintains an IP address table instead of a MAC address table.

A Layer 3 switch learns the MAC addresses that are associated with each of its ports. However, a Layer 2 switch does not.

 

23. A host is accessing a Telnet server on a remote network. Which three functions are performed by intermediary network devices during this conversation? (Choose three.)

regenerating data signals

acting as a client or a server

providing a channel over which messages travel

applying security settings to control the flow of data

notifying other devices when errors occur

serving as the source or destination of the messages

 

24. A frame is transmitted from one networking device to another. Why does the receiving device check the FCS field in the frame?

to determine the physical address of the sending device

to verify the network layer protocol information

to compare the interface media type between the sending and receiving ends

to check the frame for possible transmission errors

to verify that the frame destination matches the MAC address of the receiving device

 

25. Which statement is true about DHCP operation?​

If the client receives several DHCPOFFER messages from different servers, it sends a unicast

DHCPREQUEST message to the server from which it chooses to obtain the IP information.

A client must wait for lease expiration before it sends another DHCPREQUEST message.​

When a device that is configured to use DHCP boots, the client broadcasts a DHCPDISCOVER message to identify any available DHCP servers on the network.​

The DHCPDISCOVER message contains the IP address and subnet mask to be assigned, the IP address of the DNS server, and the IP address of the default gateway.​

 

26. What is the purpose of the network security accounting function?

to require users to prove who they are

to determine which resources a user can access

to keep track of the actions of a user

to provide challenge and response questions

 

27. Which two components are necessary for a wireless client to be installed on a WLAN? (Choose two.)

media

wireless NIC

custom adapter

crossover cable

wireless bridge

wireless client software

 

28.What two preconfigured settings that affect security are found on most new wireless routers? (Choose two.)

broadcast SSID

MAC filtering enabled

WEP encryption enabled

PSK authentication required

default administrator password

 

29.

Match the situation with the appropriate use of network media

Correct Answer:

Match the situation with the appropriate use of network media (Answer)

 

30. When applied to a router, which command would help mitigate brute-force password attacks against the router?

exec-timeout 30

service password-encryption

banner motd $Max failed logins = 5$

login block-for 60 attempts 5 within 60

 

31.

Which MAC addresses will be contained in the S1 MAC address table

Refer to the exhibit. A ping to PC2 is issued from PC0, PC1, and PC3 in this exact order. Which MAC addresses will be contained in the S1 MAC address table that is associated with the Fa0/1 port?

just PC0 and PC1 MAC addresses

just the PC0 MAC address

PC0, PC1, and PC2 MAC addresses

just the PC1 MAC address

just the PC2 MAC address​

 

32.

Match the phases to their correct stage in the router bootup process

Correct Answer:

Match the phases to their correct stage in the router bootup process (Answer)

 

33. Which connection provides a secure CLI session with encryption to a Cisco switch?

a console connection

an AUX connection

a Telnet connection

an SSH connection

 

34. Which two statements correctly describe a router memory type and its contents? (Choose two.)

ROM is nonvolatile and stores a limited version of the IOS.

FLASH is nonvolatile and contains the IP routing table.​

RAM is volatile and stores the running version of the IOS.

NVRAM is nonvolatile and stores a full version of the IOS.

ROM is nonvolatile and contains the initial system configuration.

 

35.

Consider the IP address configuration shown from PC1

Refer to the exhibit. Consider the IP address configuration shown from PC1. What is a description of the default gateway address?

It is the IP address of the Router1 interface that connects the company to the Internet.

It is the IP address of the Router1 interface that connects the PC1 LAN to Router1.

It is the IP address of Switch1 that connects PC1 to other devices on the same LAN.

It is the IP address of the ISP network device located in the cloud.

 

36. After making configuration changes, a network administrator issues a copy running-config startup-config command in a Cisco switch. What is the result of issuing this command?

The new configuration will be stored in flash memory.

The new configuration will be loaded if the switch is restarted.

The current IOS file will be replaced with the newly configured file.

The configuration changes will be removed and the original configuration will be restored.

 

37. In which default order will a router search for startup configuration information?

NVRAM, RAM, TFTP

NVRAM, TFTP, setup mode

setup mode, NVRAM, TFTP

TFTP, ROM, NVRAM

flash, ROM, setup mode

 

38.

The network administrator enters these commands into the R1 router

Refer to the exhibit. The network administrator enters these commands into the R1 router:

R1# copy running-config tftp
Address or name of remote host [ ]?

When the router prompts for an address or remote host name, what IP address should the administrator enter at the prompt?

192.168.9.254

192.168.10.1

192.168.10.2

192.168.11.252

192.168.11.254

 

39. Which group of IPv6 addresses cannot be allocated as a host source address?​

FEC0::/10​

FDFF::/7​

FEBF::/10​

FF00::/8

 

40. What happens when part of an Internet radio transmission is not delivered to the destination?

A delivery failure message is sent to the source host.

The part of the radio transmission that was lost is re-sent.

The entire transmission is re-sent.

The transmission continues without the missing portion.

 

41. What is the protocol that is used to discover a physical address from a known logical address and what message type does it use?

ARP, multicast

DNS, unicast

DNS, broadcast

ARP, broadcast

PING, multicast

PING, broadcast

 

42. 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

to provide secure Internet file transfer

to forward traffic on the basis of MAC addresses

 

43.

An administrator wants to change the name of a brand new switch

Refer to the exhibit. An administrator wants to change the name of a brand new switch, using the hostname command as shown. What prompt will display after the command is issued?​

Main Switch(config)#​

Switch(config)#​

MainSwitch(config)#​

Main(config)#​

Switch#

 

44. Which function is provided by TCP?

data encapsulation

detection of out-of-order and missing packets

communication session control

path determination for data packets

 

45. A technician uses the ping 127.0.0.1 command. What is the technician testing?

the TCP/IP stack on a network host

connectivity between two adjacent Cisco devices

connectivity between a PC and the default gateway

connectivity between two PCs on the same network

physical connectivity of a particular PC and the network

 

46. A network administrator notices that the throughput on the network appears lower than expected when compared to the end-to-end network bandwidth. Which three factors can explain this difference? (Choose three.)

the amount of traffic

the type of data encapsulation in use

the type of traffic

the number and type of network devices that the data is crossing

the bandwidth of the connection to the ISP

the reliability of the network backbone

 

47. What is an important function of the physical layer of the OSI model?

It accepts frames from the physical media.

It encapsulates upper layer data into frames.

It defines the media access method performed by the hardware interface.

It encodes frames into electrical, optical, or radio wave signals.

 

48.

What is the maximum TTL value that is used to reach the destination

Refer to the exhibit. What is the maximum TTL value that is used to reach the destination www.cisco.com?​

11

12

13

14

 

49. What method is used to manage contention-based access on a wireless network?

CSMA/CD

priority ordering

CSMA/CA

token passing

 

50.

Which area would most likely be an extranet for the company network that is shown

Refer to the exhibit. Which area would most likely be an extranet for the company network that is shown?

area A

area B

area C

area D

 

51.

Which IP addressing scheme should be changed

Refer to the exhibit. Which IP addressing scheme should be changed?

Site 1

Site 2

Site 3

Site 4

 

52. Which subnet would include the address 192.168.1.192 as a usable host address?

192.168.1.128/25

192.168.1.96/27

192.168.1.128/28

192.168.1.192/29

 

53. A PC is configured to obtain an IP address automatically from network 192.168.3.0/24. The network administrator issues the arp –a command and notices an entry of 192.168.3.255 ff-ff-ff-ff-ff-ff. Which statement describes this entry?

This is a static map entry.

This is a dynamic map entry.

This entry refers to the PC itself.

This entry maps to the default gateway.

 

54. A particular telnet site does not appear to be responding on a Windows 7 computer. What command could the technician use to show any cached DNS entries for this web page?

ipconfig /all

arp -a

ipconfig /displaydns

nslookup

 

55. What will a Layer 2 switch do when the destination MAC address of a received frame is not in the MAC table?

It initiates an ARP request.

It broadcasts the frame out of all ports on the switch.

It notifies the sending host that the frame cannot be delivered.

It forwards the frame out of all ports except for the port at which the frame was received.

 

56. A student user is looking for an ISP connection that provides high speed digital transmission over regular phone lines. What ISP connection type should be used?

DSL

dial-up

satellite

cell modem

cable modem

 

57. What will happen if the default gateway address is incorrectly configured on a host?

The host cannot communicate with other hosts in the local network.

The switch will not forward packets initiated by the host.

The host will have to use ARP to determine the correct address of the default gateway.

The host cannot communicate with hosts in other networks.

A ping from the host to 127.0.0.1 would not be successful.

 

58. Three bank employees are using the corporate network. The first employee uses a web browser to view a company web page in order to read some announcements. The second employee accesses the corporate database to perform some financial transactions. The third employee participates in an important live audio conference with other corporate managers in branch offices. If QoS is implemented on this network, what will be the priorities from highest to lowest of the different data types?

audio conference, financial transactions, web page

financial transactions, web page, audio conference

audio conference, web page, financial transactions

financial transactions, audio conference, web page

 

59. What is the purpose of having a converged network?

to provide high speed connectivity to all end devices

to make sure that all types of data packets will be treated equally

to achieve fault tolerance and high availability of data network infrastructure devices

to reduce the cost of deploying and maintaining the communication infrastructure

 

60. Which type of wireless security is easily compromised?

EAP

PSK

WEP

WPA

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