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Q.

. In _______ methods, a station cannot send unless it has been authorized by other stations.

A

random access

B

controlled access

C

channelization

D

none of the above

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MCQ

1.

In Go-Back-N ARQ, if 5 is the number of bits for the sequence number, then the maximum size of the receive window must be _____

A

15

B

16

C

31

D

1

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MCQ

2.

Stop-and-Wait ARQ is a special case of Go-Back-N ARQ in which the size of the send window is 1.

A

2

B

1

C

8

D

none of the above

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3.

Bit stuffing means adding an extra 0 to the data section of the frame when there is a sequence of bits with the same pattern as the ________

A

header

B

trailer

C

flag

D

none of the above

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4.

In ATM, _______is for short packets

A

AAL1

B

AAL2

C

AAL3/4

D

AAL5

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5.

In Bluetooth, the _______ layer is roughly equivalent to the physical layer of the Internet model.

A

radio

B

baseband

C

L2CAP

D

none of the above

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