CCNA test 2

Question 1

What addresses are mapped by ARP?

Destination MAC address to a destination IPv4 address

Destination IPv4 address to the source MAC address

Destination IPv4 address to the destination host name

Destination MAC address to the source IPv4 address

Question 2

What are two services provided by the OSI network layer? (Choose two.

Performing error detection

Routing packets toward the destination

Encapsulating PDUs from the transport layer

Placement of frames on the media

Collision detection

Question 3

What are two functions of NVRAM? (Choose two.)

To store the routing table

To retain contents when power is removed

To store the startup configuration file

To contain the running configuration file

To store the ARP table

Question 4

Refer to the exhibit. If host A sends an IP packet to host B, what will the destination address be in the frame when it leaves host A?

DD:DD:DD:DD:DD:DD

172.168.10.99

CC:CC:CC:CC:CC:CC

172.168.10.65

BB:BB:BB:BB:BB:BB

AA:AA:AA:AA:AA:AA

Question 5

Refer to the exhibit. What will be the result of enteringthis configuration the next time a network administrator connects a console cable to the router and no additional commands have been entered?

The administrator will be required to enter Cisco123.

The administrator will be required to enter Cisco234.

Theadministrator will be required to enter Cisco789

The administrator will be presented with the R1> prompt.

Question 6

What is the dotted decimal representation of the IPv4 address 11001011.00000000.01110001.11010011?

192.0.2.199

198.51.100.201

203.0.113.211

209.165.201.223

Question 7

What are three characteristics of multicast transmission? (Choose three.)

The source address of a multicast transmission is in the range of 224.0.0.0 to 224.0.0.255

A single packet can be sent to a group of hosts.

Multicast transmission can be used by routers to exchange routing information

Routers will not forward multicast addresses in the range of 224.0.0.0 to 224.0.0.255.

Computers use multicast transmission to request IPv4 addresses.

Multicast messages map lower layer addresses to upper layer addresses.

Question 8

What are the three ranges of IP addresses that are reserved for internal private use? (Choose three.)•

10.0.0.0/8

64.100.0.0/14

127.16.0.0/12

172.16.0.0/12

192.31.7.0/24

192.168.0.0/16

Question 9

What purpose does NAT64 serve in IPv6?

It converts IPv6 packets intoIPv4 packets.

It translates private IPv6 addresses into public IPv6 addresses.

It enables companies to use IPv6 unique local addresses in the network.

It converts regular IPv6 addresses into 64-bit addresses that can be used on the Internet.

It converts the 48-bit MAC address into a 64-bit host address that can be used for automatic host addressing.

Question 10

What is the most compressed representation of the IPv6 address 2001:0000:0000:abcd:0000:0000:0000:0001?

2001:0:abcd::1

2001:0:0:abcd::1

2001::abcd::1

2001:0000:abcd::1

2001::abcd:0:1

Question 11

Which range of link-local addresses can be assigned to an IPv6-enabled interface?

FEC0::/10

FDEE::/7

FE80::/10

FF00::/8

Question 12

How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask?

254

190

192

Question 13

A site administrator has been told that a particular network at the site must accommodate 126 hosts. Which subnet mask would be used that contains the required number of host bits?

255.255.255.0

255.255.255.128

255.255.255.224

255.255.255.240

Question 14

Which subnet would include the address 192.168.1.96 as a usable host address?

192.168.1.64/26

192.168.1.32/27

192.168.1.32/28

192.168.1.64/29

Question 15

Which statement is true about variable-length subnet masking?

Each subnet is the same size.

The size of each subnet may be different, depending on requirements.

Subnets may only be subnetted one additional time.

Bits are returned, rather than borrowed, to create additional subnets.

Question 16

What are two ways that TCP uses the sequence numbers in a segment? (Choose two.)

To identify missing segments at the destination

To reassemblethe segments at the remote location

To specify the order in which the segments travel from source to destination

To limit the number of segments that can be sent out of an interface at one time

To determine if the packet changed during transit

Question 17

Which scenario describes a function provided by the transport layer?

A student is using a classroom VoIP phone to call home. The unique identifier burned into the phone is a transport layer address used to contact another network device on the same network.

A student is playing a short web-based movie with sound. The movie and sound are encoded within the transport layer header.

A student has two web browser windows open in order to access two web sites. The transport layer ensures the correct web page is delivered to the correct browser window.

A corporate worker is accessing a web server located on a corporate network. The transport layer formats the screen so the web page appears properly no matter what device is being used to view the web site.

Question 18

A user opens three browsers on the same PC to access www.cisco.com to search for certification course information. The Cisco web server sends a datagram as a reply to the request from one of the webbrowsers. Which inform

The destination IP address

The destination port number

The source IP address

The source port number

Question 19

Which twotasks are functions of the presentation layer? (Choose two.)

Compression

Addressing

Encryption

Session control

Authentication

Question 20

What is a key characteristic of the peer-to-peer networking model?

Wireless networking

Social networking without the Internet

Network printing using a print server•

Resource sharing without a dedicated server

Question 21

A technician can ping the IP address of the web server of a remote company but cannot successfully ping the URL address of the same web server. Which software utility can the technician use to diagnose the problem?

Tracert

Ipconfig

Netstat

Nslookup

Question 22

Which domain name would be an example of a top-level domain?

Www.cisco.com

Cisco.com

.com

Root.cisco.com

Question 23

A PC obtains its IP address from a DHCP server. If the PC is taken off the network for repair, what happens to the IP address configuration?

The configuration is permanent and nothing changes.

The address lease is automatically renewed until the PC is returned

The address is returned to the pool for reuse when the lease expires.

The configuration is held by the server to be reissued when the PC is returned.

Question 24

A wireless host needs to request an IP address. What protocol would be used to process the request?

FTP

HTTP

DHCP

ICMP

SNMP

Question 25

Which example of malicious code would be classified as a Trojan horse?

Malware that was written to look like a video game

Malware that requires manual user intervention to spread between systems

Malware that attaches itself to a legitimate program and spreads to other programs when launched

Malware that can automatically spread from one system to another by exploiting a vulnerability in the target

Question 26

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 $Max failed logins = 5$

Question 27

A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support this requirement?

LAN

MAN

WAN

WLAN

Question 28

A home 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

Question 29

How does quality of service help a network support a wide range of applications and services?

By limiting the impact of a network failure

By allowing quick recovery from network failures

By providing mechanisms to manage congested network traffic

By providing the ability for the network to grow to accommodate new users

Question 30