Computer Networking
The application layer of a network

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

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Computer Networking
The term 'duplex' refers to the ability of the data receiving stations to echo back a confirming message to the sender. In full duplex data transmission, both the sender and the receiver

cannot talk at once
None of these
can do one way data transmission only
can receive and send data simultaneously
can send or receive data one at a time

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