CompTIA A+ Core 1 (220-1201) — Question 98

A technician receives several complaints from the same office about VoIP calls sounding broken up, being difficult to hear, and having lagging audio. The technician arrives on-site and runs an internet speed test on several wired and wireless computers. Internet speed seems normal throughout the office. Which of the following should the technician do to fix the call issues?

Answer options

• A. Enable QoS in the router
• B. Configure PoE on the switch
• C. Change the encryption from WPA3 to WPA2
• D. Turn on MAC address filtering

Correct answer: A

Explanation

The correct answer is A, as enabling Quality of Service (QoS) prioritizes VoIP traffic over other types of data, improving call quality. Options B, C, and D do not directly address the VoIP issues; configuring PoE may ensure devices receive power, changing encryption does not affect call quality, and MAC address filtering is primarily a security measure.