Exam CNX-001 topic 1 question 17 discussion

Actual exam question from CompTIA's CNX-001

Question #: 17
Topic #: 1

A network administrator receives a ticket from one of the company's offices about video calls that work normally for one minute and then get very choppy. The network administrator pings the video server from that site to ensure that it is reachable:

Which of the following is most likely the cause of the video call issue?

A. Throughput
B. Jitter
C. Latency
D. Loss

Show Suggested Answer

Suggested Answer: B 🗳️

by SuntzuLegacy at May 19, 2025, 2:19 a.m.

Comments

Submit Cancel

SuntzuLegacy

1 month, 1 week ago

Selected Answer: B

Answer: B. Jitter From the ping output, the round-trip times vary significantly—dropping as low as 11ms and jumping as high as 849ms. This inconsistent latency (i.e., wide variation in ping times) is indicative of jitter, which can severely disrupt real-time applications like video calls. If latency were consistently high (but not varying), that would suggest latency, and if packets were being dropped, you would see timeouts or ping failures, indicating loss. Throughput generally measures the capacity/throughput of the link, not the fluctuation in response times.

upvoted 1 times

...