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Exam 8: Communications and Networks

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Question 31

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A network gateway can be used to connect the LAN of one office group to the LAN of another office group.

A) True
B) False

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Question 32

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________ uses standard telephone lines to provide high-speed connections.

A) Cellular
B) Satellite
C) Cable
D) DSL

E) A) and B)
F) B) and C)

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Question 33

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Network architecture describes how a computer network is configured and what topologies and strategies are employed.

A MAN is a network that is frequently used as links between office buildings that are located throughout a city.

This device enables connectivity between two LANS or a LAN and a larger network.

The client/server network strategy can handle very large networks efficiently.

Remote users can connect to an organization's network through this type of secure private connection.

This type of network strategy uses central servers to coordinate and supply services to other nodes on the network.

A service that uses existing phone lines to provide high-speed connections is called ________.

Describe the four basic elements of most communication systems.

A hierarchical network topology in which each device is connected to a central node,either directly or through one or more other devices,is also called a ________ network.

In a computer network,this node requests and uses resources available from other nodes.

________ transmits data as pulses of light through tiny tubes of glass.

Microwave communication uses high-frequency ________.

Intrusion detection systems can recognize signs of a network attack and disable access before an intruder can do damage.

A ________ network topology does not use a specific physical layout,but requires that each node have more than one connection to the other nodes.

________ is the name of the process of converting from analog to digital.

The actual connecting or transmission medium that carries the message in a communication system is called the ________.

WANs are widely used by organizations to link personal computers and to share printers and other resources.

Packetization refers to breaking information into small parts for transmission across the Internet.