Transmission Questions

MCQ bookmark_border

41.

The _____ scheme uses data patterns of size 2 and encodes the 2-bit patterns as one signal element belonging to a four-level signal

A

4B5B

B

2B1Q

C

MLT-3

D

none of the above

Correct Answer: B

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

42.

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

Correct Answer: C

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

43.

_____ substitutes eight consecutive zeros with 000VB0VB

A

B4B8

B

HDB3

C

B8ZS

D

none of the above

Correct Answer: C

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

44.

______ substitutes four consecutive zeros with 000V or B00V

A

B4B8

B

HDB3

C

B8ZSf

D

none of the above

Correct Answer: B

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

45.

ASK, PSK, FSK, and QAM are examples of ________ conversion.

A

digital-to-digital

B

digital-to-analog

C

analog-to-analog

D

analog-to-digital

Correct Answer: B

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

46.

AM and FM are examples of ________ conversion.

A

digital-to-digital

B

digital-to-analog

C

analog-to-analog

D

analog-to-digital

Correct Answer: C

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

47.

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

Correct Answer: C

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

48.

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

A

100

B

400

C

800

D

1600

Correct Answer: C

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

49.

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

A

300

B

400

C

600

D

1200

Correct Answer: D

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

50.

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

A

300

B

400

C

600

D

1200

Correct Answer: D

None.

Check Answer report_problem Report forum Discussion