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Computer Networking

Computer Networking
If the ASCII character H is sent and the character I is received, what type of error is this?

burst
single-bit
multiple-bit
recoverable

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Computer Networking
Communication between computers is almost always

None of these
direct
serial
series parallel
parallel

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Computer Networking
Which of the following is required to communicate between two computers?

access to transmission medium
All of these
protocol
communications software
communications hardware

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Computer Networking
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?

80
100
150
None of these
30

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Computer Networking
Which network has connectivity range up to 10 meters?

MAN
WAN
LAN
PAN

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Computer Networking
A decrease in magnitude of current, voltage, a power of a signal in transmission between points, is known as

Aloha
Attenuation
Carrier
Amplitude
None of these

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