Multimedia Questions

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1.

We can divide audio and video services into _______ broad categories.

A

three

B

two

C

four

D

none of the above

Correct Answer: A

None.

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2.

________ audio/video refers to on-demand requests for compressed audio/video files.

A

Streaming live

B

Streaming stored

C

Interactive

D

none of the above

Correct Answer: B

None.

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3.

__________ audio/video refers to the broadcasting of radio and TV programs through the Internet.

A

Interactive

B

Streaming live

C

Streaming stored

D

none of the above

Correct Answer: B

None.

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4.

_________ audio/video refers to the use of the Internet for interactive audio/video applications.

A

Interactive

B

Streaming live

C

Streaming stored

D

none of the above

Correct Answer: A

None.

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5.

According to the Nyquist theorem, we need to sample an analog signal ________times the highest frequency.

A

three

B

two

C

four

D

none of the above

Correct Answer: B

None.

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6.

In ________ encoding, the differences between the samples are encoded instead of encoding all the sampled values.

A

predictive

B

perceptual

C

both a and b

D

none of the above

Correct Answer: A

None.

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7.

________ encoding is based on the science of psychoacoustics, which is the study of how people perceive sound

A

Predictive

B

Perceptual

C

both a and b

D

none of the above

Correct Answer: B

None.

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8.

____________ is used to compress images.

A

MPEG

B

JPEG

C

either a or b

D

none of the above

Correct Answer: B

None.

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9.

__________ is used to compress video.

A

MPEG

B

JPEG

C

either a or b

D

none of the above

Correct Answer: A

None.

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10.

. The first phase of JPEG is ___________

A

DCT transformation

B

quantization

C

data compression

D

none of the above

Correct Answer: A

None.

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