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MCQ

Q.

The idea of RZ and the idea of NRZ-I are combined into the ________ scheme

A

Manchester

B

differential Manchester

C

both (a) and (b)

D

neither (a) nor (b)

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MCQ

1.

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

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MCQ

2.

In decoding a digital signal, the receiver calculates a running average of the received signal power, called the _______

A

baseline

B

base

C

line

D

none of the above

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3.

If the baud rate for a 64-QAM signal is 2000, what is the bit rate?

A

300

B

400

C

1000

D

12000

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4.

If the baud rate is 400 for a QPSK signal, the bit rate is ________ bps.

A

100

B

400

C

800

D

1600

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5.

In _____ transmission, the carrier signal is modulated so that its amplitude varies with the changing amplitudes of the modulating signal.

A

AM

B

PM

C

FM

D

none of the above

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