What security control is Marge enforcing?

Diane, Kris, and Kathy are IT managers who all report to the division VP, Marge.Dianes group handles all firewall administration tasks. Kriss group handles useraccounts, and Kathys group manages help desk support. No one from Dianes group cando the tasks that Kris and Kathys groups do. The same can be said for Kris andKathys people. What security control is Marge enforcing?

A.
Job rotation

B.
Mandatory vacations

C.
Separation of duties

D.
Dual control

Explanation:
Marges IT division has several critical departments and functions. For example,entering user account information and configuring firewalls are two important anddifferent tasks that if handled by the same person could create a hugevulnerability. By dividing the group into different functioning units, Marge haseffectively implemented a separation of duties security control.