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Q.

In IEEE 802.11, when a frame is coming from an AP and going to a station, the address flag is _______.

B

1

C

10

D

11

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MCQ

1.

The purpose of the _______ is to provide flow and error control for the upper-layer protocols that actually demand these services

A

MAC

B

LLC

C

LLU

D

none of the above

Discussion

MCQ

2.

In PPP, ________ is a simple authentication procedure with a two-step process:

A

NCP

B

LCP

C

CHAP

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PAP

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3.

. The Stop-And-Wait ARQ, Go-Back-N ARQ, and the Selective Repeat ARQ are for ______ channels

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noisy

B

noiseless

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either (a) or (b)

D

neither (a) nor (b)

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4.

. In the Go-Back-N Protocol, if the size of the sequence number field is 8, the sequence numbers are in ________ arithmetic

A

modulo-2

B

modulo- 8

C

modulo-256

D

none of the above

Discussion

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5.

In the third generation of cellular phones, _______ uses W-CDMA.

A

IMT-DS

B

IMT-MC

C

IMT-TC

D

IMT-SC

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