Computer Networking
A teleprocessing system may consist of

None of these
user systems
All of these
communications systems
computer center systems

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Computer Networking
The main difference between synchronous and asynchronous transmission is

None of these
the clocking is mixed with the data in asynchronous transmission
the clocking is derived from the data in synchronous transmission
the bandwidth required is different
the pulse height is different.

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Computer Networking
Which of the following summation operations is performed on the bits to check an error-detecting code?

Coder-decoder
Checksum
Broadband and baseband refer to the different frequencies at which infrared operates then transmitting signals in certain conditions
Codec
Attenuation

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