During a video conference, the remote participant's video appears with large blocky squares that freeze and then recover. The audio is clear. The call is using H.264 at 720p. Network monitoring shows 1.5% packet loss on the video RTP stream and jitter of 10 ms. What is the most likely cause of the video artifacts?

Packet loss on the video stream causing corrupted frames

The H.264 codec is not supported by the receiving endpoint

Jitter of 10 ms causing frame reordering

Insufficient bandwidth for the 720p stream

A company has two offices connected by a 20 Mbps MPLS link. Users report that video calls are choppy, but audio calls are fine. The video traffic is marked AF41 and audio is EF. The WAN router has LLQ for EF and CBWFQ for AF41. Monitoring shows the link is at 90% utilization during peak hours. What is the most likely cause of the video issues?

The video codec is incompatible between the two sites

The LLQ is starving the video queue

The link is too small for video calls

The AF41 queue is dropping video packets due to congestion

A user reports that calls to a remote site have poor quality. The RTCP metrics show: MOS 3.0, jitter 15 ms, packet loss 0.1%, and one-way delay 250 ms. The call is using G.729. The network team finds that the remote site is in another country. Which action would most directly improve the MOS?

Increase the jitter buffer on the user's phone

Move the remote site's gateway to a location closer to the user

Change the codec from G.729 to G.711

Enable packet loss concealment on the gateway

CiscoCertified Network Professional Collaboration

Domain 6Objective 1

6.1 Troubleshoot Media Quality Issues Such as One-Way, Choppy Audio, Video Artifact 350-801 Practice Questions (Page 3)

Part of the Media and QoS domain, which accounts for 10% of the 350-801 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~5–8 in this domain), expect 1–2 from this objective — we provide 31 practice questions to prepare you well beyond it. (estimate)

31questions here

7free pages

7concepts

10%of the exam

Questions 11–15

11foundation · easy
Which metric directly measures the variation in packet arrival times and is used to size the jitter buffer?
Select an answer first
12application · medium
During a video conference, the remote participant's video appears with large blocky squares that freeze and then recover. The audio is clear. The call is using H.264 at 720p. Network monitoring shows 1.5% packet loss on the video RTP stream and jitter of 10 ms. What is the most likely cause of the video artifacts?
Select an answer first
13application · medium
A company has two offices connected by a 20 Mbps MPLS link. Users report that video calls are choppy, but audio calls are fine. The video traffic is marked AF41 and audio is EF. The WAN router has LLQ for EF and CBWFQ for AF41. Monitoring shows the link is at 90% utilization during peak hours. What is the most likely cause of the video issues?
Select an answer first
14expert · hard
A user reports that calls to a remote site have poor quality. The RTCP metrics show: MOS 3.0, jitter 15 ms, packet loss 0.1%, and one-way delay 250 ms. The call is using G.729. The network team finds that the remote site is in another country. Which action would most directly improve the MOS?
Select an answer first
15foundation · easy
During a video conference, the image breaks into small blocky squares during motion. Which video artifact is being observed?
Select an answer first

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6.1 Troubleshoot Media Quality Issues Such as One-Way, Choppy Audio, Video Artifact 350-801 Practice Questions (Page 3)

Questions 11–15

Which metric directly measures the variation in packet arrival times and is used to size the jitter buffer?

A user reports that calls to a remote site have poor quality. The RTCP metrics show: MOS 3.0, jitter 15 ms, packet loss 0.1%, and one-way delay 250 ms. The call is using G.729. The network team finds that the remote site is in another country. Which action would most directly improve the MOS?

During a video conference, the image breaks into small blocky squares during motion. Which video artifact is being observed?

Keep studying — Media and QoS