Computer Networking
The application layer of a network

None of these
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

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Computer Networking
The main difference between TCP and UDP is

TCP is an Internet protocol where as UDP is an ATM protocol
UDP is connection oriented where as TCP is datagram service
None of these
UDP is a datagram where as TCP is a connection oriented service
All of these

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