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MCQ

Q.

Which of the following is a voiceband channel?

A

Telephone line

B

Telegraph line

C

Coaxial cable

D

Microwave systems

E

None of the above

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MCQ

1.

Which of the following files is used for NetBIOS name resolution?

A

HOSTS

B

LMHOSTS

C

ARP

D

FQDN

E

None of the above

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2.

The geostationary satellite used for communication systems

A

rotates with the earth

B

remains stationary relative to the earth

C

is positioned over equator

D

All of the above

E

None of the above

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3.

Baseband is

A

transmission of signals without modulation

B

a signal all of whose energy is contained within a finite frequency range

C

the simultaneous transmission of data to a number of stations

D

All of the above

E

None of the above

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4.

Modulation in which the two binary values are represented by two different amplitudes of the carrier frequency is known as

A

Amplitude-shift keying

B

Amplitude

C

Amplitude modulation

D

Aloha

E

None of the above

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5.

The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as:

A

modulation

B

demodulation

C

synchronizing

D

synchronizing

E

None of the above

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