Huawei
H35-211_V2.5 · Question #33
In an IPTV service scenario, a black screen appears during a program. Detection shows that the program stream has reached the ONU user port. What is the cause of this phenomenon?
The correct answer is A. Set-top box failure. See the full explanation below for the reasoning.
FTTx Solutions and Deployment
Question
In an IPTV service scenario, a black screen appears during a program. Detection shows that the program stream has reached the ONU user port. What is the cause of this phenomenon?
Options
- ASet-top box failure
- BThe maximum multicast bandwidth allocated by the PON port is too small
- CThe user does not have permission to watch the program
- DUser multicast verification failed
How the community answered
(26 responses)- A73% (19)
- B8% (2)
- C4% (1)
- D15% (4)
Topics
#IPTV troubleshooting#black screen#multicast#set-top box
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