Separation of duties embodies what principle?

A.
The operators’ duties are frequently rotated.

B.
Two operators are required to work in tandem to perform a task.

C.
The operators have different duties to prevent one person from compromising the system.

D.
An operator does not know more about the system than the minimum required to do the job.

Explanation:
The correct answer is “The operators have different duties to prevent one person from
compromising the system”. Separation of duties means that the operators are prevented from
generating and verifying transactions alone, for example. A task might be divided into different
smaller tasks to accomplish this, or in the case of an operator with multiple duties, the operator
makes a logical, functional job change when performing
such conflicting duties. Answer “An operator does not know more about the system than the
minimum required to do the job” is need-to-know, answer “Two operators are required to work in
tandem to perform a task” is dual-control, and c is job rotation.