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Q.

The minimum bandwidth of Manchester and differential Manchester is ____ that of NRZ.

A

the same as

B

twice

C

thrice

D

none of the above

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MCQ

1.

. In _______ encoding, the duration of the bit is divided into two halves. The voltage remains at one level during the first half and moves to the other level in the second half. The transition at the middle of the bit provides synchronization.

A

Manchester

B

differential Manchester

C

both (a) and (b)

D

neither (a) nor (b)

Discussion

MCQ

2.

In ________, the phase of the carrier is varied to represent two or more different signal elements. Both peak amplitude and frequency remain constant.

A

ASK

B

PSK

C

FSK

D

QAM

Discussion

MCQ

3.

How many carrier frequencies are used in BFSK?

A

2

B

1

D

none of the above

Discussion

MCQ

4.

______ provides redundancy to ensure synchronization and inherent error detection.

A

Block coding

B

Line coding

C

Scrambling

D

None of the above

Discussion

MCQ

5.

. In _________ transmission, we send bits one after another without start or stop bits or gaps. It is the responsibility of the receiver to group the bits.

A

synchronous

B

asynchronous

C

isochronous

D

none of the above

Discussion

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