Computer Networking
A front-end processor is

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

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Computer Networking
The MAC (Media Access Control) address of the network card is used in both Ethernet and Token-Ring networks and is essential for communication. What does MAC provide?

An alias for the computer name
A physical address that is randomly assigned each time the computer is started
A logical address that identifies the workstation
A physical address that is assigned by the manufacturer
The logical domain address for the workstation

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