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MCQ

Q.

The ______ scheme uses three levels (+V, 0, and -V) and three transition rules to move between the levels.

A

4B5B

B

2B1Q

C

MLT-3

D

none of the above

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MCQ

1.

PCM is an example of _______ conversion.

A

digital-to-digital

B

digital-to-analog

C

analog-to-analog

D

analog-to-digital

Discussion

MCQ

2.

There are three sampling methods: __________

A

quantized, sampled, and ideal

B

ideal, sampled, and flat-top

C

ideal, natural, and flat-top

D

none of the above

Discussion

MCQ

3.

In QAM, both ________ of a carrier frequency are varied.

A

frequency and amplitude

B

phase and frequency

C

amplitude and phase

D

none of the above

Discussion

MCQ

4.

If the bit rate for an ASK signal is 1200 bps, the baud rate is ________.

A

300

B

400

C

600

D

1200

Discussion

MCQ

5.

In ________, the amplitude of the carrier signal is varied to create signal elements. Both frequency and phase remain constant.

A

ASK

B

PSK

C

FSK

D

QAM

Discussion

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