CompTIA A+ Core 2 (220-1102) — Question 439

A SOHO wireless router needs to be configured so incoming traffic is only allowed on specified ports. Which of the following is the best way for the technician to accomplish this task?

Answer options

• A. Physically secure access to the router.
• B. Implement AES encryption.
• C. Install the latest firmware.
• D. Disable Universal Plug and Play.

Correct answer: D

Explanation

Disabling Universal Plug and Play (UPnP) is the most effective option because it prevents devices from automatically opening ports, which can lead to security vulnerabilities. The other options do not directly address the need to control incoming traffic on specified ports; securing physical access, implementing encryption, and updating firmware are important practices but do not specifically limit traffic on ports.