____ is a virtual circuit based on available bandwidth that does not guarantee data delivery in a timely manner but does ensure against data loss.
A)Constant bit-rate service
B)Variable bit-rate service
C)Unspecified bit-rate service
D)Available bit-rate service

Question

Quizplus · Accepted Answer

The available bit-rate service is a virtual circuit that is based on available bandwidth but does not guarantee delivery in a timely manner. However, it does ensure against data loss. The constant bit-rate service guarantees a fixed amount of bandwidth and timely delivery, while the variable bit-rate service adjusts the bandwidth based on the data being transmitted. The unspecified bit-rate service does not specify a particular bit-rate and may use whatever bandwidth is available.

____ Is a Virtual Circuit Based on Available Bandwidth That