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Q.

. _________ allow insertion and extraction of signals

A

regenerators

B

ADMs

C

STS multiplexer/demultiplexers

D

none of the above

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MCQ

1.

What is the hexadecimal equivalent of the Ethernet address 01011010 00010001 01010101 00011000 10101010 00001111?

A

5A:88:AA:18:55:F0

B

5A:81:BA:81:AA:0F

C

5A:11:55:18:AA:0F

D

5A:18:5A:18:55:0F

Discussion

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2.

In a(n) _____ configuration, the stations are automatically connected or disconnected from a VLAN using criteria defined by the administrator

A

manual

B

automatic

C

semiautomatic

D

none of the above

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3.

In ATM, a virtual connection is defined by _________

A

VPI

B

VCI

C

DLCI

D

a combination of (a) and (b)

Discussion

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4.

In the _________ method, a special packet called a ______ circulates through the ring.

A

reservation: control frame

B

polling: poll request

C

token passing: token

D

none of the above

Discussion

MCQ

5.

SDH has defined a hierarchy of signals called ________.

A

STSs

B

STMs

C

either (a) or (b)

D

neither (a) nor (b)

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