Which of the following is a characteristic of full-duplex communication?

Which of the following is a characteristic of full-duplex communication?

A.  It is a CSMA/CD network.
B.  It is a CSMA/CA network.
C.  It is point-to-point only.
D.  Hub communication is done via full duplex.

Answer: C. It is point-to-point only.

Explanation:

The meaning of full duplex in computer network simply refers to a device can send and receive data without collision. Whereas Half duplex refers a device can either send or receive data. But it cannot do both at the same time.

CSMA/CD (Carrier Sense Multiple Access with Collision Detection) a set of rules determining how
network devices respond when two devices attempt to use a data channel simultaneously (called a collision).

CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) is a
protocol for carrier transmission in 802.11 networks. Unlike CSMA/CD (Carrier Sense Multiple Access/Collision Detect) which deals with transmissions after a collision has occurred, CSMA/CA acts to prevent collisions before they happen.

Hub is a half duplex device whereas switch is full duplex.

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Example for Hub Communication: http://www.youtube.com/watch?v=sIkCwoEJyCE

Example of Switch Communication: http://www.youtube.com/watch?v=aNxxrawNu48

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