H35-210_V2.5 · Question #443
Which of the following statements about VLANs during data service configuration are correct? (Select All that Apply)
The correct answer is B. When a single tag is used, the service VLAN ID must be the same as the user VLAN ID. C. User data can be mapped into different GEM ports according to different VLANs. D. Generally, QinQ is used for data services, and inner tags are used to accurately identify different. B: Single-tagging requires matching service/user VLAN IDs. C: VLAN-to-GEM mapping enables service segregation. D: QinQ uses outer VLAN for aggregation and inner VLAN for user identification.
Question
Which of the following statements about VLANs during data service configuration are correct? (Select All that Apply)
Options
- AIn FTTx planning, broadband users connected to the same PON port use the same outer VLAN.
- BWhen a single tag is used, the service VLAN ID must be the same as the user VLAN ID.
- CUser data can be mapped into different GEM ports according to different VLANs.
- DGenerally, QinQ is used for data services, and inner tags are used to accurately identify different
How the community answered
(47 responses)- A23% (11)
- B77% (36)
Explanation
B: Single-tagging requires matching service/user VLAN IDs. C: VLAN-to-GEM mapping enables service segregation. D: QinQ uses outer VLAN for aggregation and inner VLAN for user identification.
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