Ch7 Pre-Test
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
