Computer Networking
An error detecting code is which code is the remainder resulting from dividing the bits to be checked by a predetermined binary number, is known as

None of these
Cyclic redundancy check
Error detecting code
Error rate
Checksum

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Computer Networking
The difference between a multiplexer and a statistical multiplexer is

Multiplexers use Time Division Multiplexing (TDM) while statistical multiplexers use Frequency Division Multiplexing (FDM)
Statistical multiplexers need buffers while multiplexers do not need buffers
Multiplexers often waste the output link capacity while statistical multiplexers optimize its use
None of these
Multiplexer use X.25 protocol, while statistical multiplexers use the Aloha protocol

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Computer Networking
The main difference between TCP and UDP is

All of these
TCP is an Internet protocol where as UDP is an ATM protocol
UDP is a datagram where as TCP is a connection oriented service
None of these
UDP is connection oriented where as TCP is datagram service

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