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Computer Networking

Computer Networking
The EIA-232 interface has _____ pins.

24
25
None of these
30
20

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Computer Networking
Which of the following communications modes support two-way traffic but in only one direction of a time?

None of these
simplex
full-of the above
half-duplex
three-quarters duplex

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Computer Networking
A receiving host has failed to receive all of the segments that it should acknowledge. What can the host do to improve the reliability of this communication session?

Send a different source port number.
Decrease the sequence number.
Decrease the window size.
Restart the virtual circuit.

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Computer Networking
The communication mode that supports two-way traffic but only one direction at a time is

None of these
duplex
multiplex
simplex
half duplex

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Computer Networking
Which of the following condition is used to transmit two packets over a medium at the same time?

Contention
Asynchronous
Synchronous
None of these
Collision

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Computer Networking
The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as:

synchronizing
None of these
synchronizing
demodulation
modulation

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