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Computer Networking

Computer Networking
In communication satellite, multiple repeaters are known as

None of these
modulator
detector
stations
transponders

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Computer Networking
You telnet to a router and make your necessary changes; now you want to end the Telnet session. What command do you type in?

exit
close
disable
disconnect

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Computer Networking
A distributed data processing configuration in which all activities must pass through a centrally located computer is called a:

hierarchical network
ring network
spider network
data control network
None of these

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Computer Networking
Which of the following condition is used to transmit two packets over a medium at the same time?

Collision
Synchronous
None of these
Asynchronous
Contention

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Computer Networking
The method of communication in which transmission takes place in both directions, but only one direction at a time is called

Full Duplex
Four wire circuit
Half Duplex
Simplex

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Computer Networking
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?

128 Kbps.
32 Kbps
None of these
8 Kbps
64 Kbps

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