Data Communications Chapter 4 Quiz T/F only

Contention MAC approaches work better in a large network with high usage.

False

Data transmission errors are typically uniformly distributed in time. T/F

False

Impulse noise is caused by the thermal agitation of electrons. T/F

False

Only the sender of a data transmission needs to be concerned about the rules or protocols that govern how it communicates with the receiver. T/F

False

Attenuation refers to the loss of signal strength.

True

Contention is commonly used with Ethernet local area networks. T/F

True

If a computer transmits a message containing "ABC" and the destination computer receives "abc" as the message, the message is corrupted. T/F

True

The data link layer accepts messages from the network layer and controls the hardware that transmits them. T/F

True

Token passing is a term that refers to hub polling, in which one computer starts a poll and passes it to the next computer on a multipoint circuit. T/F

True

With roll-call polling, a server polls clients in a consecutive, pre-arranged priority list.

True