Computer Networking
A front-end processor is

a minicomputer that relieves main-frame computers at a computer centre of communications control functions
None of these
a processor in a large-scale computer that executes operating system instructions
a user computer system
preliminary processor of batch jobs.

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Computer Networking
Bulletin board system

is a modem capable of accepting commands
is a public access message system
None of these
converts analog signals to digital signals
converts digital signals to analog signals

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