Paying for a guaranteed amount of frame relay bandwidth is called:

A.
CIR

B.
SVC

C.
QoS

D.
LIN

Explanation:
Committed information rate (CIR) is a premium service offered by
service providers in frame relay networks that guarantees a company a specified
amount of bandwidth. Frame relay is bursty in nature, meaning that a company may
have access to a larger amount of bandwidth until the network gets busy. If a
company needs to ensure it will have a certain amount of bandwidth always available,
it will have to pay this extra rate.