Computer Networking
Bandlimited signal is

a signal all of whose energy is contained within a finite frequency range
simultaneous transmission of data to a number of stations
All of these
None of these
transmission of signals without modulation

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Computer Networking
The application layer of a network

establishes, maintains, and terminates virtual circuits
All of these
defines the user's port into the network
None of these
consists of software being run on the computer connected to the network

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