Multimedia Questions

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11.

The second phase of JPEG is ___________

A

DCT transformation

B

quantization

C

data compression

D

none of the above

Correct Answer: B

None.

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12.

The third phase of JPEG is ___________

A

DCT transformation

B

quantization

C

data compression

D

none of the above

Correct Answer: C

None.

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13.

Jitter is introduced in real-time data by the _______________

A

error caused during transmission

B

delay between packets

C

both a and b

D

none of the above

Correct Answer: B

None.

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14.

To prevent _________, we can timestamp the packets and separate the arrival time from the playback time.

A

error

B

jitter

C

either a or b

D

none of the above

Correct Answer: B

None.

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15.

A ________buffer is required for real-time traffic.

A

playback

B

reordering

C

sorting

D

none of the above

Correct Answer: A

None.

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16.

A __________on each packet is required for real-time traffic

A

timestamp

B

sequence number

C

both a and b

D

none of the above

Correct Answer: C

None.

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17.

Real-time traffic needs the support of ____________

A

broadcasting

B

multicasting

C

both a and b

D

none of the above

Correct Answer: B

None.

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18.

__________ means changing the encoding of a payload to a lower quality to match the bandwidth of the receiving network.

A

Translation

B

Mixing

C

both a and b

D

none of the above

Correct Answer: A

None.

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19.

__________ means combining several streams of traffic into one stream

A

Translation

B

Mixing

C

both a and b

D

none of the above

Correct Answer: B

None.

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20.

. _________ is not suitable for interactive multimedia traffic because it retransmits packets in case of errors.

A

UDP

B

TCP

C

both a and b

D

none of the above

Correct Answer: B

None.

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