When an employee is terminated from service, the MOST important action is to:

D. disable the employee s logical access.

There is a probability that a terminated employee may misuse access rights; therefore, disabling the terminated employees logical access is the most important action to take. All the work of the terminated employee needs to be handed over to a designated employee; however, this should be performed after implementing choice D. All the work of the terminated employee needs to be backed up and the employees need to be notified of the termination of the employee, but this should not precede the action in choice D.