CH 3 insy

___________ refers to the spreading of the signal that different parts of the signal arrive at different times at the destination.

dispersion

_________ is the basic physical layout of the circuit.

circuit configuration

In general, networks designed to transmit primarily computer data are likely to be ________.

digital

Two fundamentally different types of data are

digital and analog

Which of the following media has the lowest error rates and the highest transmission speeds

fiber optic cable

Having a conversation with someone using a cellular phone is an example of _________ transmission

full-duplex

The two basic types of media are:

guided and wireless (radiated

The ability to transmit in both directions, but only in one direction at a time is an example of _______________ transmission.

half-duplex

Which of the following would be considered a type of wireless media?

microwave

__________ is a line-of-sight type of wireless media.

microwave

Data is physically transmitted from one computer or terminal to another in the ________ layer.

physical

Which is not true about point-to-point circuits?

point-to-point circuits reduce the amount

Which of the following is not an important factor to consider when selecting media to be used in a network?

prestige value of the type of media

A(n) __________ circuit is another name for a multipoint configuration

shared

The type of media usually installed on homes and businesses by the telephone company is called ____________.

twisted pair

_____________ can be thought of as dividing the circuit horizontally.

Frequency division multiplexing

Which of the following is not a key advantage of digital transmission?

It permits only low transmission rates

The earliest type of fiber optic systems were`

Multimode

______________ refers to the time it takes for a signal to travel from sender to recipient (highly exaggerated with satellite transmission).

Propagation delay

Another term for the weakening of a signal over distance is

attenuation

____________ refers to the transmission characteristics of the circuit.

logical circuit

Microwave transmission

all of the above

In general, older networks and local loops designed to transmit voice data are likely to be ________.

analog

Which of the following is the most secure wired media?

fiber optic cable

Which of the following media can best withstand harsh environmental conditions?

fiber optic cable