CompTIA Security Plus Mock Test Q160

A security analyst has been tasked with securing a guest wireless network. They recommend the company use an authentication server but are told the funds are not available to set this up. Which of the following BEST allows the analyst to restrict user access to approved devices?

A. Antenna placement
B. Power level adjustment
C. Disable SSID broadcasting
D. MAC filtering

Correct Answer: D
Section: Network Security

A MAC filter is a list of authorized wireless client interface MAC addresses that is used by a WAP to block access to all unauthorized devices.

Incorrect Answers:
A, B: This will increase or decrease signal strength and availability, but will not restrict user access.
C: Numerous networks broadcast their name (known as an SSID broadcast) to reveal their
presence. Removing the presence will affect both authorized and unauthorized devices.

Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, p. 61