Data Questions

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281.

A _______ is defined as a small, fixed-size block of information

A

frame

B

packet

C

cell

D

none of the above

Correct Answer: C

None.

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282.

In ATM, a virtual connection is defined by _________

A

VPI

B

VCI

C

DLCI

D

a combination of (a) and (b)

Correct Answer: D

None.

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283.

The ATM standard defines ______ layers

A

two

B

three

C

four

D

five

Correct Answer: B

None.

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284.

The VPI of a UNI is _______ bits in length

A

8

B

12

C

16

D

24

Correct Answer: A

None.

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285.

The VPI of an NNI is _______ bits in length

A

8

B

12

C

16

D

24

Correct Answer: B

None.

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286.

The ATM data packet is a cell composed of ______ bytes

A

40

B

50

C

52

D

53

Correct Answer: D

None.

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287.

______ eliminates the varying delay times associated with different-size packets

A

X.25

B

Frame Relay

C

ATM

D

all of the above

Correct Answer: C

None.

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288.

. A(n) ______ is the interface between a user and an ATM switch.

A

UNI

B

NNI

C

NNN

D

None of the above

Correct Answer: A

None.

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289.

________ is the interface between two ATM switches.

A

UNI

B

NNI

C

NNN

D

none of the above

Correct Answer: B

None.

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290.

In ATM, connection between two endpoints is accomplished through _______

A

TPs

B

VPs

C

VCs

D

all of the above

Correct Answer: D

None.

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