Data Questions

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241.

An STS-1 frame is made ______columns

A

1

B

9

C

90

D

none of the above

Correct Answer: C

None.

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242.

An STS-3 frame is made of ______ rows

A

1

B

9

C

27

D

none of the above

Correct Answer: B

None.

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243.

An STS-3 frame is made of ________ columns

A

9

B

90

C

270

D

none of the above

Correct Answer: C

None.

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244.

SONET network topologies can be __________

A

linear

B

ring

C

mesh

D

all of the above

Correct Answer: D

None.

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245.

A linear SONET network can be __________

A

point-to-point

B

multipoint

C

either (a) or (b)

D

neither (a) nor (b)

Correct Answer: C

None.

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246.

A ring SONET network can be _________

A

unidirectional

B

bidirectional

C

either (a) or (b)

D

neither (a) nor (b)

Correct Answer: C

None.

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247.

To make SONET backward-compatible with the current hierarchy, its frame design includes a system of.

A

OCs

B

STMs

C

STSs

D

VTs

Correct Answer: D

None.

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248.

A ________ is a repeater

A

regenerator

B

ADM

C

STS multiplexer/demultiplexer

D

none of the above

Correct Answer: A

None.

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249.

. _________ allow insertion and extraction of signals

A

regenerators

B

ADMs

C

STS multiplexer/demultiplexers

D

none of the above

Correct Answer: B

None.

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250.

A _______ is the optical link connecting two neighbor devices.

A

section

B

line

C

path

D

none of the above

Correct Answer: A

None.

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