CompTIA Network+ (N10-008) — Question 193

A network administrator installed a new data and VoIP network. Users are now experiencing poor call quality when making calls. Which of the following should the administrator do to increase VoIP performance?

Answer options

• A. Configure a voice VLAN.
• B. Configure LACP on all VoIP phones.
• C. Configure PoE on the network.
• D. Configure jumbo frames on the network.

Correct answer: A

Explanation

Configuring a voice VLAN helps to prioritize VoIP traffic, ensuring that voice packets are transmitted with higher priority over the network, which can significantly improve call quality. The other options, while potentially beneficial in different contexts, do not specifically address the issue of call quality caused by network congestion or prioritization of voice traffic.