What is an effective control for granting temporary access to vendors and external support personnel?

What is an effective control for granting temporary access to vendors and external support personnel?
A . Creating user accounts that automatically expire by a predetermined date
B . Creating permanent guest accounts for temporary use
C . Creating user accounts that restrict logon access to certain hours of the day
D . Creating a single shared vendor administrator account on the basis of least-privileged access

View Answer

Answer: A

Explanation:

Creating user accounts that automatically expire by a predetermined date is an effective control for granting temporary access to vendors and external support personnel.