Which of the following is a control over component communication failure/errors?
A.
Restricting operator access and maintaining audit trails
B.
Monitoring and reviewing system engineering activity
C.
Providing network redundancy
D.
Establishing physical barriers to the data transmitted over the network
Explanation:
Redundancy by building some form of duplication into the network components, such as a link, router or switch
to prevent loss, delays or data duplication is a control over component communication failure or error. Other
related controls are loop/echochecks to detect line errors, parity checks, error correction codes and sequence
checks. Choices A, B and D are communication network controls.