Computer Networking
If digital data rate of 9600 bps is encoded using 8-level phase shift keying (PSK) method, the modulation rate is

None of these
3200 bands
1200 bands
4800 bands
9600 bands

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Computer Networking
The application layer of a network

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

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Computer Networking
Which of the following technique is used for fragment?

a technique used in best-effort delivery systems to avoid endlessly looping packets
one of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size
None of these
a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame
All of these

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