Computer Networking
The data communication support should include, but is not restricted to

file and database access
file transfer and transaction processing
All of these
terminal support, electronic mail and voice grams.

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Computer Networking
UDP is:

Connection oriented and unreliable
Connectionless and unreliable
None of these
Connection orientated and reliable
Not a part of the TCP/IP suite

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

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

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