Ch7 Pre-Test

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What term refers to the process of a client retrieving files from a server?

downloading

What is the newest and fastest type of wired transmission media?

fiber-optic cable

What type of transmission allows messages to move in either direction but only in one direction at a time?

half-duplex transmission

Microwaves are _____.

high-frequency radio signal

What type of network connects devices in a small geographic area, such as an office building?

local area network (LAN)

GPS, RFID, and sensors are all examples of technology used for ____.

monitoring

What type of transmission sends data one bit at a time, one after the other along a single path?

serial transmission

Multiplexers make it possible to _____.

share a high-speed line among several devices

What device connects multiple devices on a single (typically wired) network and forwards packets to only the intended recipient?

switch

What term refers to working at a remote location (typically at home) and communicating with places of business and clients via networking technologies?

telecommuting

Extranets are usually accessed via _____.

the Internet

What technology could a driver use to determine his or her location while on a trip?

GPS

A P2P network relies on a central server to provide access to the shared devices attached to the network.

False

A VPN is a small network of two or more personal devices for one individual that is designed to enable those devices to communicate and share data.

False

Today, computer networks are converging with telephone networks and other communications networks, with both data and voice being sent over these networks.

True

Ethernet (802.3) is the most widely used standard for wired networks.

True

In the United States, WiMAX is most often used in rural areas.

True

Start and stop bits are used in ____.

asynchronous transmissio

What term refers to the amount of data that can be transmitted in a given time period?

bandwidth

What type of physical topology uses a central cable to which all network devices connect?

bus network


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