A) Duplex
B) Simplex
C) Triplex
D) TCP
E) None of these
Correct Answer: A
Solution :
[a] A duplex communication system is a point-to-point system composed of two connected parties or devices that can communicate with one another in both directions. Translated literally, "duplex" means "two paths." It has two clearly defined paths, with each path carrying information in only one direction to B over one path, and B to A over the other.
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