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MCQ

Q.

AMPS uses ______ to divide each 25-MHz band into channels

A

FDMA

B

TDMA

C

CDMA

D

none of the above

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MCQ

1.

In the _________ protocol we avoid unnecessary transmission by sending only frames that are corrupted

A

Stop-and-Wait ARQ

B

Go-Back-N ARQ

C

Selective-Repeat ARQ

D

none of the above

Discussion

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2.

In IEEE 802.11, a BSS with an AP is sometimes referred to as ____________

A

an ad hoc architecture

B

an infrastructure network

C

either (a) or (b)

D

neither (a) nor (b)

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3.

The ______ layer is responsible for the movement of a signal across a physical section

A

section

B

line

C

path

D

photonic

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4.

In ______ APS, there is one working line and one protection line. The data are normally sent on the working line until it fails.

A

one-plus-one

B

one-to-one

C

one-to-many

D

none of the above

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5.

A SONET system can use _________

A

STS multiplexers

B

regenerators

C

add/drop multiplexers

D

all of the above

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