Which of the following descriptions about configuring the dual-machine hot backup function in the WLAN network is wrong?

Question

Options

• AWhen uplink hot backup is switched over, due to the long switching time, the business data forwarded by the tunnel will be interrupted during this period, new users will not be able to go online, and the online users will not be able to roam.
• BWhen configuring dual-machine hot backup, the active AC completes the service configuration, execute the commit command to send the configuration to the AP, and then complete the configuration of the standby AC.
• CAfter completing the configuration, you need to use the commit command on the active AC to send the configuration to the AP after the active and standby ACs have completed the service configuration.
• DThe dual-machine hot backup can implement AP data backup and AC data backup.

• B
  87% (20)
• C
  9% (2)
• D
  4% (1)

Explanation

Option B describes an incorrect configuration sequence: it states that the active AC should commit its configuration to the AP before the standby AC has been configured, which is the wrong order. The correct procedure, as Option C accurately describes, is to complete service configuration on both the active and standby ACs first, and only then execute the commit command on the active AC to push the configuration to the AP. This ordering ensures that when the AP configuration is committed, the standby AC is already synchronized and ready to take over without a configuration gap.

Options A, C, and D are all accurate statements. Option A correctly acknowledges that uplink hot backup switchover involves a temporary interruption to tunneled traffic, new user access, and roaming. Option C correctly states the proper sequence of configuring both ACs before committing. Option D correctly identifies that dual-machine hot backup covers both AP data and AC data.

Memory tip: Think of it as "both before commit" - configure the standby AC before you ever run commit on the active AC, just as you would never send a document to print before finishing your edits on the backup copy.

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