____ is the most expensive ATM class of service.
A) Variable bit rate (VBR)
B) Available bit rate (ABR)
C) Unspecified bit rate (UBR)
D) Constant bit rate (CBR)

Question

Quizplus · Accepted Answer

CBR is the most expensive ATM class of service as it guarantees a fixed bandwidth for the duration of the connection, regardless of whether the bandwidth is fully utilized or not. This makes it ideal for applications that require consistent and predictable transmission rates, such as video conferencing or real-time streaming. The other options, VBR, ABR, and UBR, allow for more variability in bandwidth usage and are therefore less costly.

____ Is the Most Expensive ATM Class of Service