CCNA 1 Final Exam Answers Option A

Cisco CCNA 1 Simulation v6.0 Test Final Exam Option A

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Cisco CCNA 1 Simulation v6.0 Test Final Exam Option A Questions and answers

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CCNA 1 Final Exam Answers Option A Quiz Questions and Answers. In this simulation, take your test, get your score and share with others!

Points: 100
Questions: 54
Time limit: None
Allowed attempts: Unlimited

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CCNA 1 V6.0 Final Exam Answers Option A Questions and Answers

Refer to the exhibit. Match the packets with their destination IP address to the exiting interfaces on the router. (Not all options are used.)

FastEthernet0/0 -> packets with destination of 172.17.6.15
FastEthernet0/1 -> packets with destination of 172.17.14.8
FastEthernet1/0 -> packets with destination of 172.17.12.10
FastEthernet1/1 -> packets with destination of 172.17.10.5
Serial0/0/0 -> packets with destination of 172.17.8.20

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

performing error detection

placement of frames on the media

encapsulating PDUs from the transport layer

routing packets toward the destination

collision detection

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

a console connection

an SSH connection

a Telnet connection

an AUX connection

Which scenario describes a function provided by the transport layer?

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

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 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.

What are two benefits of using a layered network model? (Choose two.)

It prevents technology in one layer from affecting other layers.¿

It ensures a device at one layer can function at the next higher layer.

It assists in protocol design.

It prevents designers from creating their own model.

It speeds up packet delivery.

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

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

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

malware that was written to look like a video game

malware that requires manual user intervention to spread between systems

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

social networking without the Internet

wireless networking

network printing using a print server

resource sharing without a dedicated server

A network administrator is measuring the transfer of bits across the company backbone for a mission critical financial application. The administrator notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence the differences in throughput? (Choose three.)

the reliability of the gigabit Ethernet infrastructure of the backbone

the latency that is created by the number of network devices that the data is crossing

the amount of traffic that is currently crossing the network

the type of traffic that is crossing the network

the sophistication of the encapsulation method applied to the data

the bandwidth of the WAN connection to the Internet

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 address lease is automatically renewed until the PC is returned.

The configuration is permanent and nothing changes.

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

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

Match the description with the associated IOS mode. (Not all options are used.)

user EXEC mode
limited number of basic monitoring commands
the first entrance intro the CLI of an IOS device

privileged EXEC mode
accessed by entering the enable command
identified by a prompt ending with the # character

global configuration mode
changes made affect the operation of the device as a whole
accessed by entering the configure terminal command

What is a characteristic of the LLC sublayer?

It provides the logical addressing required that identifies the device.

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

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

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

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

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

encryption

compression

authentication

addressing

session control

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 exit to a different configuration mode

to interrupt the ping process

to allow the user to complete the command

to restart the ping process

What is an advantage to using a protocol that is defined by an open standard?

The protocol can only be run on equipment from a specific vendor.

A company can monopolize the market.

It encourages competition and promotes choices.

An open standard protocol is not controlled or regulated by standards organizations.

What protocol is responsible for controlling the size of segments and the rate at which segments are exchanged between a web client and a web server?

Ethernet

HTTP

TCP

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

127.16.0.0/12

64.100.0.0/14

192.168.0.0/16

192.31.7.0/24

10.0.0.0/8

172.16.0.0/12

Which two OSI model layers have the same functionality as two layers of the TCP/IP model? (Choose two.)

physical

transport

data link

session

network

A network technician is attempting to configure an interface by entering the following command: SanJose(config)# ip address 192.168.2.1 255.255.255.0. The command is rejected by the device. What is the reason for this?

The interface is shutdown and must be enabled before the switch will accept the IP address.

The command is being entered from the wrong mode of operation.

The subnet mask information is incorrect.

The command syntax is wrong.

What is a characteristic of UTP cabling?

cancellation

immunity to electrical hazards

woven copper braid or metallic foil

cladding

What will a host on an Ethernet network do if it receives a frame with a destination MAC address that does not match its own MAC address?

It will discard the frame

It will remove the frame from the media.

It will strip off the data-link frame to check the destination IP address.

It will forward the frame to the next host.

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

FDEE::/7

FF00::/8

FE80::/10

FEC0::/10

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

192

254

190

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

192.168.1.32/27

192.168.1.32/28

192.168.1.64/26

192.168.1.64/29

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

209.165.201.223

203.0.113.211

198.51.100.201

192.0.2.199

Which statement is true about variable-length subnet masking?

Each subnet is the same size.

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

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

Subnets may only be subnetted one additional time.

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?

CC:CC:CC:CC:CC:CC

DD:DD:DD:DD:DD:DD

AA:AA:AA:AA:AA:AA

172.168.10.65

172.168.10.99

BB:BB:BB:BB:BB:BB

Where are Cisco IOS debug output messages sent by default?

vty lines

memory buffers

console line

Syslog server

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

data link layer addressing

error correction through a collision detection method

conversion of bits into data signals

detection of errors through CRC calculations

placement and removal of frames from the media

session control using port numbers

delimiting groups of bits into frames

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

ICMP

HTTP

FTP

SNMP

DHCP

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?

netstat

nslookup

ipconfig

tracert

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

CSMA/CA

priority ordering

token passing

CSMA/CD

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

to store the startup configuration file

to contain the running configuration file

to store the routing table

to store the ARP table

to retain contents when power is removed

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 web browsers. Which information is used by the TCP/IP protocol stack in the PC to identify which of the three web browsers should receive the reply?

the source IP address

the source port number

the destination port number

the destination IP address

Which name is assigned to the transport layer PDU?

segment

packet

data

frame

bits

A network team is comparing physical WAN topologies for connecting remote sites to a headquarters building. Which topology provides high availability and connects some, but not all, remote sites?

hub and spoke

partial mesh

mesh

point-to-point

What is the function of the shell in an OS?

It provides the intrusion protection services for the device.

It interfaces between the users and the kernel.

It provides dedicated firewall services.

It interacts with the device hardware.

Refer to the exhibit. What will be the result of entering this 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.

The administrator will be required to enter Cisco789.

The administrator will be presented with the R1> prompt

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

Computers use multicast transmission to request IPv4 addresses.

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

Multicast messages map lower layer addresses to upper layer addresses.

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

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

What purpose does NAT64 serve in IPv6?

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

It converts IPv6 packets into IPv4 packets.

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

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

It translates private IPv6 addresses into public IPv6 addresses.

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

.com

cisco.com

root.cisco.com

www.cisco.com

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

to identify missing segments at the destination

to determine if the packet changed during transit

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

to reassemble the segments at the remote location

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

What is a benefit of using cloud computing in networking?

Technology is integrated into every-day appliances allowing them to interconnect with other devices, making them more ‘smart’ or automated.

Network capabilities are extended without requiring investment in new infrastructure, personnel, or software.

End users have the freedom to use personal tools to access information and communicate across a business network.

Home networking uses existing electrical wiring to connect devices to the network wherever there is an electrical outlet, saving the cost of installing data cables.

What addresses are mapped by ARP?

destination MAC address to the source IPv4 address

destination MAC address to a destination IPv4 address

destination IPv4 address to the source MAC address

destination IPv4 address to the destination host name

Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?

cut-through switching

fast-forward switching

fragment-free switching

store-and-forward switching

What is a characteristic of a fault tolerant network?

a network that protects confidential information from unauthorized access

a network that recovers quickly when a failure occurs and depends on redundancy to limit the impact of a failure

a network that can expand quickly to support new users and applications without impacting the performance of the service delivered to existing users

a network that supports a mechanism for managing congestion and ensuring reliable delivery of content to all users

A network administrator is troubleshooting connectivity issues on a server. Using a tester, the administrator notices that the signals generated by the server NIC are distorted and not usable. In which layer of the OSI model is the error categorized?

physical layer

presentation layer

data link layer

network layer

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?

secretin

letmein

linevtyin

lineconin

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

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

2001::abcd::1

2001::abcd:0:1

2001:0:abcd::1

2001:0:0:abcd::1

2001:0000:abcd::1

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

service password-encryption

exec-timeout 30

banner motd $Max failed logins = 5$

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, web page, financial transactions

audio conference, financial transactions, web page

financial transactions, web page, audio conference

financial transactions, audio conference, web page

What are two characteristics of fiber-optic cable? (Choose two.)

Each pair of cables is wrapped in metallic foil.

It is not affected by EMI or RFI.

It is more expensive than UTP cabling is.

It combines the technique of cancellation, shielding, and twisting to protect data.

It typically contains 4 pairs of fiber-optic wires.

A network technician suspects that a particular network connection between two Cisco switches is having a duplex mismatch. Which command would the technician use to see the Layer 1 and Layer 2 details of a switch port?

show ip interface brief

show running-config

show mac-address-table

show interfaces