Which of the following descriptions about dual-machine hot standby is incorrect?

Question

Options

• AIn a load-sharing network, the configuration command can be backed up from "Configure Standby
• BIn an active-standby backup network, configuration commands and status information are backed
• CIn load-sharing mode networking, traffic is processed by two devices, which can bear greater
• DIn a load-sharing network, both firewalls are active devices. Therefore, if the two active devices

• A
  85% (33)
• B
  5% (2)
• C
  8% (3)
• D
  3% (1)

Explanation

Option A is the incorrect statement because in a load-sharing network, both firewalls act as active devices simultaneously - there is no "standby" device to push configuration commands from, so the active-to-standby configuration backup mechanism described does not apply to this topology.

Option B is correct: in an active-standby setup, the active device does synchronize both configuration commands and session/state information to the standby device, keeping it ready for immediate failover.

Option C is correct: load-sharing mode genuinely allows both devices to process traffic in parallel, effectively doubling throughput capacity compared to a single active device.

Option D is correct: in load-sharing mode, both firewalls are indeed active, which is the defining characteristic that distinguishes this topology from active-standby.

Memory tip: Think of it this way - "backup" implies one device is doing the work for another. In load-sharing, both devices are equals with no backup relationship, so no configuration can be "backed up from standby." If a question mentions configuration syncing from standby, that's an active-standby concept being misapplied to load-sharing.

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