ITIL Foundation Exam – Q8

Which one of the following is the BEST definition of reliability?

A. The availability of a service or component
B. The level of risk that affects a service or process
C. How long a service or configuration item (CI) can perform its function without failing
D. How quickly a service or component can be restored to normal working order

C. How long a service or configuration item (CI) can perform its function without failing