Computer Networking
To make possible the efficient on-line servicing of many teleprocessing system users on large computer systems, designers are developing

communication systems
All of these
virtual storage systems
multiprogramming systems
None of these

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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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