Which of the following describes a transmission technology on which data can be transmitted in
both directions on a signal carrier, but NOT at the same time?
A.
bi-directional
B.
half duplex
C.
full duplex
D.
multi directional
Explanation:
A half-duplex system provides for communication in both directions, but only one direction at a
time (not simultaneously). A full-duplex system allows communication in both directions, and
unlike half-duplex, allows this to happen simultaneously.