After reviewing the firewall logs of her organization’s wireless APs, Ann discovers an unusually high
amount of failed authentication attempts in a particular segment of the building. She remembers that a
new business moved into the office space across the street. Which of the following would be the BEST
option to begin addressing the issue?

A.
Reduce the power level of the AP on the network segment

B.
Implement MAC filtering on the AP of the affected segment

C.
Perform a site survey to see what has changed on the segment

D.
Change the WPA2 encryption key of the AP in the affected segment

Explanation:
Some access points include power level controls that allow you to reduce the amount of output provided
if the signal is traveling too far.
Incorrect Answers:
B: MAC filtering is an option further down the line. If reducing the amount of output resolves the issue,
the administrative effort will be much less that have to compile a list of the MAC addresses associated
with users’ computers and then entering those addresses.
C: A site survey is recommended when laying out a network.
D: The fact that Ann has found failed authentication attempts shows that the WPA2 encryption is not the
real issue.

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis,
2014, pp. 177, 178