Which of the following security concepts can prevent a user from logging on from home during the
weekends?

A.
Time of day restrictions

B.
Multifactor authentication

C.
Implicit deny

D.
Common access card

Explanation:
Time of day restrictions limit when users can access specific systems based on the time of day or week. It
can limit access to sensitive environments to normal business hours when oversight and monitoring can
be performed to prevent fraud, abuse, or intrusion.
Incorrect Answers:
B: Multifactor authentication requires a user to supply two or more authentication factors in order to
prove their identity. This would not be restricted to weekends only.C: Implicit deny says that if you aren’t explicitly granted access or privileges for a resource, you’re denied
access by default. If this is true, time of the week will not be a factor.
D: Common Access Cards (CACs) are smart cards used by the U.S. government and military to physically
access facilities.

Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp. 280-284