Discuss Huawei H35-211_V2.5 Exam Topic 5 Question 87

In video services, if the VOD service is normal but the live service encounters a black screen, which of the following are possible causes?

APQ is used for downstream congestion management of an OLT.

BDWRR is used for upstream congestion management of an OLT.

COn the ONU, the VLAN of the VoD service is different from that of the live service. On the OLT, there is only one video service stream.

DThe traffic profile corresponding to the OLT upstream multicast service flow is set to a low priority.

Suggested Answer: C

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21 comments · newest first

Bulah 2 days ago

True, but I lean towards C. VLAN mismatch is a common issue.

Erasmo 7 days ago

D could also be a factor. Low priority might affect live streaming.

Walker 12 days ago

Agreed, C makes sense. Live service needs the right VLAN.

Josphine 17 days ago

I think C is a strong possibility. Different VLANs can cause issues.

Mirta 22 days ago

Overall, C seems the most plausible cause for the black screen.

Diego 28 days ago

I feel like D is worth considering too. Low priority can disrupt live feeds.

Vannessa 1 month ago

Right, congestion usually affects both services, not just live.

Dorthy 1 month ago

A and B seem less likely. They deal with congestion, not black screens.

Dominga 1 month ago

True, but I lean towards C. VLAN mismatch is a common problem.

Reta 2 months ago

D could also be a factor. Low priority might affect live streaming.

Serina 2 months ago

Agreed, C makes sense. Live service needs the right VLAN.

Hildred 2 months ago

I think C is the main issue. Different VLANs can cause problems.

Edward 2 months ago

Totally agree with C, that’s a classic mistake in setups.

Glynda 2 months ago

Wait, only one video stream on the OLT? That sounds risky!

Malcolm 2 months ago

A and B are less likely, right? They deal with congestion, not black screens.

Johana 3 months ago

I think D is a big factor too, low priority can mess things up.

Pete 3 months ago

C seems likely, different VLANs could cause issues.

Coral 3 months ago

I vaguely recall something about OLT configurations affecting service streams, but I can't remember if that was related to upstream or downstream issues.

Roxane 3 months ago

I feel like we had a practice question about multicast flows and priority settings. Option D might be relevant if the live service is being deprioritized.

Dylan 3 months ago

I'm not entirely sure about the specifics of DWRR and PQ, but I think they relate to how traffic is prioritized. Could that affect the live stream?

Elin 4 months ago

I remember we discussed how VLAN mismatches can cause issues in service delivery, so option C sounds plausible.

Huawei H35-211_V2.5 Exam - Topic 5 Question 87 Discussion