Which one of the following is usually not a benefit resulting from the use of firewalls?

A.
Reduces the risks of external threats from malicious hackers.

B.
Prevents the spread of viruses.

C.
Reduces the threat level on internal system.

D.
Allows centralized management and control of services.

Explanation:
Firewalls can be useful in restricting the negative impacts of viruses, but an anti-virus program is the only way
to prevent the spread of viruses.
Incorrect Answers:
A: Firewalls are used to restrict access to one network from another network. They reduce the risk of external
threats such as hackers.
C: Firewall increases the security on the internal network by restricting external access.
D: Firewalls can be administered from a central location.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 628