Computer Networking
A default Frame Relay WAN is classified as what type of physical network?

Broadcast multi-access
Non-broadcast multipoint
Non-broadcast multi-access
Point-to-point

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Computer Networking
A WATS arrangement

None of these
is always less expensive than flat-rate service
is never less expensive than flat-rate service
is less expensive than flat-rate service only when the number of calls is large and the duration of each is short
is less expensive than flat-rate service only when the number of calls is small and the duration of each is long

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Computer Networking
Demodulation is a process of

performing data description.
converting digital to analog signals
multiplexing various signals into one high speed line signals
converting analog to digital signals

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