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Testing Quiz

What is a characteristic of a fault tolerant network?

A network that protects confidential information from unauthorized access

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

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?

Financial transactions, audio conference, web page

Audio conference, financial transactions, web page

Audio conference, web page, financial transactions

Financial transactions, web page, audio conference

What is a benefit of using cloud computing in networking?

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

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

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

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 is the function of the shell in an OS?

It interacts with the device hardware.

It interfaces between the users and the kernel.*

It provides dedicated firewall services.

It provides the intrusion protection services for the device.

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

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 command is being entered from the wrong mode of operation.

The command syntax is wrong.

The subnet mask information is incorrect.

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

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

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

Linevtyin

Lineconin

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

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?

TCP

HTTP

Ethernet

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

A company can monopolize the market.

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

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

It encourages competition and promotes choices.

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

It assists in protocol design.

It speeds up packet delivery

It prevents designers from creating their own model

It prevents technology in one layer from affecting other layers.

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

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

Data link

Network

Physical

Session

Transport

Which name is assigned to the transport layer PDU?

Bits

Data

Frame

Packet

Segment

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

The amount of traffic that is currently crossing the network

The sophistication of the encapsulation method applied to the data

The type of traffic that is crossing the network

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

The bandwidth of the WAN connection to the Internet

The reliability of the gigabit Ethernet infrastructure of the backbone

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?

Presentation layer

Network layer

Physical layer

Data link layer

Which type of UTP cable is used to connect a PC to a switch port?

Console

Rollover

Crossover

Straight-through

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 amount of traffic that is currently crossing the network

The sophistication of the encapsulation method applied to the data

The type of traffic that is crossing the network

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

The bandwidth of the WAN connection to the Internet

The reliability of the gigabit Ethernet infrastructure of the backbone

What is a characteristic of UTP cabling?

Cancellation

Cladding

Immunity to electrical hazards

Woven copper braid or metallic foil

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

It is not affected by EMI or RFI.

Each pair of cables is wrapped in metallic foil.

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

It typically contains 4 pairs of fiber-optic wires.

It is more expensive than UTP cabling is.

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.

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?

Mesh

Partial mesh

Hub and spoke

Point-to-point

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

CSMA/CD

Priority ordering

CSMA/CA

Token passing

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

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 forward the frame to the next host.

It will remove the frame from the media.

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

What are two examples of the cut-through switching method? (Choose two.)

Store-and-forward switching

Fast-forward switching

CRC switching

Fragment-free switching

QOS switching

What are two actions performed by a Cisco switch? (Choose two.)

Building a routing table that is based on the first IP address in the frame header

Using the source MAC addresses of frames to build and maintain a MAC address table

Forwarding frames with unknown destination IP addresses to the default gateway

Utilizing the MAC address table to forward frames via the destination MAC address

Examining the destination MAC address to add new entries to the MAC address table

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

Cut-through switching

Store-and-forward switching

Fragment-free switching

Fast-forward switching

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

172.168.10.65

BB:BB:BB:BB:BB:BB

AA:AA:AA:AA:AA:AA

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

What information is added during encapsulation at OSI Layer 3?

Source and destination MAC

Source and destination application protocol

Source and destination port number

Source and destination IP address

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

Refer to the exhibit. The network administrator for a small advertising company has chosen to use the 192.168.5.96/27 network for internal LAN addressing. As shown in the exhibit, a static IP address is assigned to the company web server. However, the web server cannot access the Internet. The administrator verifies that local workstations with IP addresses that are assigned by a DHCP server can access the Internet, and the web server is able to ping local workstations. Which component is incorrectly configured?

Subnet mask

DNS address

Host IP address

Default gateway address

Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask?

To identify the broadcast address of the destination network

To identify the host address of the destination host

To identify faulty frames

To identify the network address of the destination network

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

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 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

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.

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

What purpose does NAT64 serve in IPv6?

It converts IPv6 packets into IPv4 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.

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

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

FEC0::/10

FDEE::/7

FE80::/10

FF00::/8

Which three addresses are valid public addresses? (Choose three.)

198.133.219.17

192.168.1.245

10.15.250.5

128.107.12.117

192.15.301.240

64.104.78.227

Refer to the exhibit. On the basis of the output, which two statements about network connectivity are correct? (Choose two.)

There is connectivity between this device and the device at 192.168.100.1.

The connectivity between these two hosts allows for videoconferencing calls.

There are 4 hops b**etween this device and the device at 192.168.100.1.

The average transmission time between the two hosts is 2 milliseconds.

This host does not have a default gateway configured.

What type of IPv6 address is FE80::1?

Loopback

Link-local

Multicast

Global unicast

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

254

190

192

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

A network administrator wants to have the same subnet mask for three subnetworks at a small site. The site has the following networks and numbers of devices: Subnetwork A: IP phones – 10 addresses Subnetwork B: PCs – 8 addresses Subnetwork C: Printers – 2 addresses What single subnet mask would be appropriate to use for the three subnetworks?

255.255.255.0

255.255.255.240

255.255.255.248

255.255.255.252

How many hosts are addressable on a network that has a mask of 255.255.255.248?

254

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

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