____ virtual circuits are similar to leased lines, in that the pathway between two communication points is established as a permanent logical connection; therefore, the pathway exists even when it's not in use.
A)Automatic
B)Switched
C)Permanent
D)Manual

Question

Quizplus · Accepted Answer

Permanent virtual circuits (PVCs) are similar to leased lines in that the pathway between two communication points is established as a permanent logical connection. This means that the pathway exists even when it's not in use, just like a leased line. Switched virtual circuits (SVCs), on the other hand, do not provide a permanent logical connection and are only established when needed. Automatic and manual virtual circuits are not types of virtual circuits.

____ Virtual Circuits Are Similar to Leased Lines, in That