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MCQ

Q.

Which of the following is not a digital-to-analog conversion?

A

ASK

B

PSK

C

FSK

D

AM

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MCQ

1.

The ________ mode provides synchronization for the entire stream of bits must. In other words, it guarantees that the data arrive at a fixed rate.

A

synchronous

B

asynchronous

C

isochronous

D

none of the above

Discussion

MCQ

2.

In a _____ scheme, all the signal levels are on one side of the time axis, either above or below.

A

polar

B

bipolar

C

unipolar

D

all of the above

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3.

There are three sampling methods: __________

A

quantized, sampled, and ideal

B

ideal, sampled, and flat-top

C

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none of the above

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4.

. 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

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isochronous

D

none of the above

Discussion

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5.

In _____ transmission, the phase of the carrier signal is modulated to follow the changing voltage level (amplitude) of the modulating signal.

A

AM

B

PM

C

FM

D

none of the above

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