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Computer Networking

Computer Networking
00 represents a pixel that pixel is known as :

Black pixel
Light gray
Dark gray pixel
White pixel

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Computer Networking
Now-a-days computers all over the world can talk to each other. Which is one of the special accessories essential for this purpose?

None of these
Modem
Fax
Keyboard
Scanner

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Computer Networking
An ROP would be attached to a

None of these
simplex channel
half duplex channel
duplex channel
full duplex channel

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Computer Networking
A form of modulation In which the amplitude of a carrier wave is varied in accordance with some characteristic of the modulating signal, is known as

Aloha
Angle modulation
modem
Amplitude modulation
None of these

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Computer Networking
A 8-Mbps token ring has a token holding timer value of 10 msec. What is the longest frame (assume header bits are negligible) that can be sent on this ring?

8000 B frame
8 x 105 bit frame
10,000 B frame
80,000 B frame

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Computer Networking
Select the wrong data communication system component:

Protocol
Transits
Receiver
Medium

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