CompTIA Network+ (N10-007) — Question 522

After deployment of a second network link to load balance the network traffic, the quality of voice calls degrades. The network administrator discovers the voice packets are arriving at uneven intervals that cannot be handled by the voice application buffer. Which of the following actions will improve the quality of the voice calls?

Answer options

• A. Control the attenuation of the non-voice traffic across the network links
• B. Control the latency of traffic across the network links
• C. Control the EMI of the multimedia traffic across the network links
• D. Control the jitter of the affected traffic across the network links

Correct answer: D

Explanation

Controlling the jitter of the affected traffic is crucial because jitter refers to the variability in packet arrival times, which can disrupt voice call quality. The other options, while relevant to network performance, do not directly address the issue of packet timing that affects the voice application's ability to process calls smoothly.