CompTIA A+ Core 1 (220-1001) — Question 334

An ISP has notified a SOHO user of a usage increase on the user's network. The user is concerned the WiFi network is being utilized by unauthorized users.
Which of the following would minimize the unauthorized use of the WiFi network?

Answer options

• A. Implement MAC filtering
• B. Enable NAT
• C. Create a network DMZ
• D. Upgrade the encryption standards

Correct answer: A

Explanation

Implementing MAC filtering allows the user to specify which devices can connect to the WiFi network, minimizing unauthorized access. Enabling NAT and creating a network DMZ do not directly control access to the WiFi itself, while upgrading encryption standards enhances security but does not prevent unauthorized devices from connecting if they have the correct encryption key.