H12-311: HCIA-WLAN V3.0Demo

By Huawei · Question Mode

QuestionQ9

园区网络规划与部署

Which of the following statements concerning AC N+1 backup is true?

  • A Active/standby switchover and switchback are supported.
  • B User data information is backed up in real time.
  • C An AP simultaneously establishes CAPWAP tunnels with all ACs.
  • D The load balancing mode is not supported.
Explanation

Huawei's N+1 AC backup mode is a redundancy scheme in which a dedicated backup AC protects several active ACs; when an active AC fails its APs fail over to the shared backup AC, and once the original active AC recovers, the APs can switch back to it, so active/standby switchover and switchback are both supported, unlike real-time user-data synchronization or simultaneous multi-AC CAPWAP tunnels, which are not features of this mode.

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