Transmission Questions

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11.

In _______ transmission, bits are transmitted simultaneously, each across its own wire.

A

Asynchronous serial

B

Synchronous serial

C

Parallel

D

(a) and (b)

Correct Answer: C

None.

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12.

In _______ transmission, bits are transmitted over a single wire, one at a time.

A

asynchronous serial

B

synchronous serial

C

parallel

D

(a) and (b)

Correct Answer: D

None.

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13.

In _______ transmission, a start bit and a stop bit frame a character byte

A

asynchronous serial

B

synchronous serial

C

parallel

D

(a) and (b)

Correct Answer: A

None.

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14.

In asynchronous transmission, the gap time between bytes is _______

A

fixed

B

variable

C

a function of the data rate

D

zero

Correct Answer: B

None.

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15.

___________ conversion involves three techniques: line coding, block coding, and scrambling.

A

Analog-to-digital

B

Digital-to-analog

C

Analog-to-analog

D

Digital-to-digital

Correct Answer: D

None.

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16.

________ is the process of converting digital data to a digital signal.

A

Block coding

B

Line coding

C

Scrambling

D

None of the above

Correct Answer: B

None.

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17.

______ provides redundancy to ensure synchronization and inherent error detection.

A

Block coding

B

Line coding

C

Scrambling

D

None of the above

Correct Answer: A

None.

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18.

________ provides synchronization without increasing the number of bits.

A

Scrambling

B

Line coding

C

Block coding

D

None of the above

Correct Answer: A

None.

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19.

. Two common scrambling techniques are ________

A

NRZ and RZ

B

AMI and NRZ

C

B8ZS and HDB3

D

Manchester and differential Manchester

Correct Answer: C

None.

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20.

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

Correct Answer: C

None.

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