CCNA Routing and Switching (legacy) — Question 139

Which function of the IP SLAs ICMP jitter operation can you use to determine whether a VoIP issue is caused by excessive end-to-end time?

Answer options

• A. packet loss
• B. jitter
• C. successive packet loss
• D. round-trip time latency

Correct answer: D

Explanation

The correct answer is D, as round-trip time latency measures the total time for a packet to travel to the destination and back, which is crucial for analyzing VoIP quality. Options A and C focus on packet loss, which does not directly address delay, while option B measures jitter, which indicates variation in packet delay, not the total end-to-end time.