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
consists of software being run on the computer connected to the network
None of these

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Computer Networking
Bandlimited signal is

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

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