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MCQ

Which of the following is an advantage to using fiber optics data transmission?

resistance to data theft

fast data transmission rate

low noise level

few transmission errors

All of the above

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MCQ

When two computers communicate with each other, they send information back and forth. If they are separated by a reasonable distance, they can send and receive the information through a direct cable connection which is called a null-modem connection. Presently what is the maximum distance in metres permitted in this null-modem connection?

100

150

None of the above

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MCQ

Which of the following technique is used for allocating capacity on a satellite channel using fixed-assignment FDM?

Amplitude modulation

Frequency-division multiple access

Frequency modulation

Frequency-shift keying

None of the above

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MCQ

Correct method for full duplex mode of communication is:

Both stations can transmit and receive data at the

One device can send other device can only accepts.

One device sends and other device receives and vic

None of these

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MCQ

Identify the odd term amongst the following group:

Coaxial cable

Optical fibre

Twisted pair wire

Microwaves

None of the above

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MCQ

A 4 KHz noise less channel with one sample ever 125 per sec is used to transmit digital signals. Differential PCM with 4 bit relative signal value is used. Then how many bits per second are actually sent?

32 Kbps

64 Kbps

8 Kbps

128 Kbps.

None of the above

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Data Communication and Networking

Miscellaneous or General

Computer Basics

Computer Softwares

History and Generations

CPU and its components

Computer Languages

Computer Hardware

Input Devices

Output Devices

Computer Memory

Digital Logic Gate

Number System

Computer Codes

Operating System

Disk Operating System (DOS)

Database Systems

Computer Security and Viruses

Mixed

Computer Awareness

Files and its types

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