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MCQ

Packet Switch Stream (PSS) was introduced in

the US in 1961 (&) the UK in 1981

the UK in 1980

the US in 1961

None of the above

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MCQ

The main difference between synchronous and asynchronous transmission is

the clocking is derived from the data in synchronous transmission

the clocking is mixed with the data in asynchronous transmission

the pulse height is different.

the bandwidth required is different

None of the above

Discussion

MCQ

Which of the following statement is correct?

Satellite transponders contain a receiver and transmitter designed to relay microwave transmissions from one point on earth to another.

Satellite transponders contain a device that echos the radiation without change from one point on earth to another.

Satellite transponder contains devices that transform the message sent from one location on earth to a different code for transmission to another location.

Satellite transponders use lower frequency reception of radiation from earth stations and higher frequency for transmission to earth stations

None of the above

Discussion

MCQ

Number of Unguided Media is:

Discussion

MCQ

An example of an analog communication method is

laser beam

microwave

voice grade telephone line

All of the above

None of the above

Discussion

MCQ

Which of the following types of channels moves data relatively slowly?

wideband channel

voiceband channel

narrowband channel

broadband channel

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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