CompTIA Exam 220-1201 Topic 5 Question 9 Discussion

Actual exam question for CompTIA's 220-1201 exam

Question #: 9
Topic #: 5

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?

AEnable QoS in the router

BConfigure PoE on the switch

CChange the encryption from WPA3 to WPA2

DTurn on MAC address filtering

Show Suggested Answer

Suggested Answer: A

Quality of Service (QoS) prioritizes VoIP traffic on the network, reducing jitter, latency, and packet loss to improve call quality.

From CompTIA A+ 220-1101 Official Study Guide, Objective 2.4 -- Network troubleshooting:

''Enabling QoS in the router ensures time-sensitive traffic, like VoIP, receives network priority, reducing dropped or lagging calls.''

Verified Source:

CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 2: Network Troubleshooting

CompTIA Exam Objectives 220-1101, Domain 2.4

by Lamar at Jul 29, 2025, 04:27 PM

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