Data Questions

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291.

In ATM, the _______layer accepts transmissions from upper-layer services and maps them into ATM cells

A

physical

B

ATM

C

AAL

D

none of the above

Correct Answer: C

None.

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292.

In ATM, the ______ layer provides routing, traffic management, switching, and multiplexing services

A

physical

B

ATM

C

AAL

D

none of the above

Correct Answer: B

None.

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293.

In ATM, the _____ layer defines the transmission medium, bit transmission, encoding, and electrical-to-optical transformation

A

physical

B

ATM layer

C

AAL

D

none of the above

Correct Answer: A

None.

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294.

The AAL is divided into _______ sublayers

A

two

B

three

C

four

D

none of the above

Correct Answer: A

None.

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295.

In ATM, ______ is for constant-bit-rate data.

A

AAL1

B

AAL2

C

AAL3/4

D

AAL5

Correct Answer: A

None.

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296.

In ATM, _______is for short packets

A

AAL1

B

AAL2

C

AAL3/4

D

AAL5

Correct Answer: B

None.

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297.

In ATM, _____ is for conventional packet switching (virtual-circuit approach or datagram approach).

A

AAL1

B

AAL2

C

AAL3/4

D

AAL5

Correct Answer: C

None.

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298.

. In ATM, ______ is for packets requiring no sequencing and no error control mechanism.

A

AAL1

B

AAL2

C

AAL3/4

D

AAL5

Correct Answer: D

None.

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