300-445 Question 113
Select 3You are tasked with evaluating the performance of a video conferencing application deployed across your enterprise network. Users report poor quality during meetings, such as delayed video and audio, and interruptions in the stream. As part of the troubleshooting process, you analyze network parameters like packet loss, jitter, and latency. Which combination of network characteristics is most likely causing these issues?
- A
High latency resulting in delayed communication between endpoints
- B
High jitter leading to variations in packet arrival times
- C
Low packet loss ensuring minimal impact to data streams
- D
Low latency providing a seamless communication experience
- E
High packet loss causing retransmissions and degraded quality
Show answer and explanation
Correct answers: A, B, E
Explanation
Real-time applications, such as video conferencing, are highly sensitive to network performance issues like high latency, high jitter, and high packet loss. High latency introduces delays, high jitter creates inconsistencies in data playback, and high packet loss leads to retransmissions or missing data, all of which significantly degrade the user experience. These issues must be addressed to improve the application's performance.
- A. Correct.
High latency can introduce delays in communication, which is particularly noticeable in real-time applications like video conferencing.
- B. Correct.
High jitter causes inconsistent packet arrival times, affecting the smooth playback of audio and video streams.
- C. Incorrect.
Low packet loss indicates minimal disruption to the data stream, which would not typically cause the reported issues.
- D. Incorrect.
Low latency contributes to a responsive and seamless experience, which is not aligned with the reported problems.
- E. Correct.
High packet loss disrupts data transmission, leading to retransmissions or degraded quality, especially for real-time applications like video conferencing.