Question 1

________ is a modern technology designed to provide high speed digital data transmission over ordinary telephone wire.

Accepted Answer

The answer of ________ is a modern technology designed to...

Question 2

________ uses multiple carrier signals at different frequencies,sending some of the bits on each channel.The modem sends out test signals on each subchannel to determine the signal-to-noise ratio.The modem then assigns more bits to channels with better signal transmission and less bits to channels with poorer signal transmission.

Accepted Answer

The answer of ________ uses multiple carrier signals at different...

Question 3

In ________ modulation,each signal occupies a distinct frequency band so these signals can be combined by simple addition to produce the composite signal for transmission.

Accepted Answer

The answer of In ________ modulation,each signal occupies a distinct...

Question 4

An optical transmission interface originally proposed by BellCore and standardized by ANSI is ________.It is intended to provide a specification for taking advantage of the high speed digital transmission capacity of optical fiber.

Accepted Answer

The answer of An optical transmission interface originally proposed by...

Question 5

The disadvantage of using echo cancellation is the need for ________ logic on both ends of the line.

Accepted Answer

The answer of The disadvantage of using echo cancellation is...

Quiz 8: Multiplexing

________ is a modern technology designed to provide high speed digital data transmission over ordinary telephone wire.

In ________ modulation,each signal occupies a distinct frequency band so these signals can be combined by simple addition to produce the composite signal for transmission.

An optical transmission interface originally proposed by BellCore and standardized by ANSI is ________.It is intended to provide a specification for taking advantage of the high speed digital transmission capacity of optical fiber.

The disadvantage of using echo cancellation is the need for ________ logic on both ends of the line.