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MCQ

Q.

The carrier that handles inter-LATA services is called a(n) _______

A

POP

B

IXC

C

LEC

D

none of the above

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1.

The United States is divided into many _______

A

LECs

B

LATAs

C

IXCs

D

none of the above

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2.

________ cable consists of two insulated copper wires twisted together.

A

Coaxial

B

Fiber-optic

C

Twisted-pair

D

none of the above

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3.

. The _______ address in the header of a packet in a datagram network normally remains the same during the entire journey of the packet

A

source

B

destination

C

local

D

none of the above

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4.

Traditionally, _____ methods of switching have been important.

A

four

B

three

C

five

D

six

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5.

A ________ switch combines space-division and time-division technologies to take advantage of the best of both.

A

TST

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SSS

C

TTT

D

none of the above

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