Fault tolerance countermeasures are designed to combat threats to which of the following?
A.
an uninterruptible power supply.
B.
backup and retention capability.
C.
design reliability.
D.
data integrity.
Explanation:
One of the ways to provide uninterrupted access to information assets is through redundancy and fault
tolerance. Redundancy refers to providing multiple instances of either a physical or logical component such that
a second component is available if the first fails. Fault tolerance is a broader concept that includes redundancy
but refers to any process that allows a system to continue making information assets available in the case of a
failure.
Fault tolerance countermeasures are designed to combat threats to design reliability. Although fault tolerance
can include redundancy, it also refers to systems such as RAID where if a disk fails, the data can be made
available from the remaining disks.
Incorrect Answers:
A: Fault tolerance countermeasures ensure that data assets remain available in the event of a failure of any
component, not just an uninterruptible power supply.
B: Fault tolerance countermeasures ensure that data assets remain available in the event of a failure of any
component, not just the backup and retention capability.
D: Fault tolerance countermeasures do not protect data integrity.