Which of the following descriptions about firewall hot backup is incorrect?

Question

Options

• AIn a dual-machine hot standby network, the heartbeat line is the channel through which two FWs
• BIf the hardware and software of the two FWs are different, dual-machine hot backup can be
• CWhen one FW fails, the business traffic can be smoothly switched to another device for processing
• DThe heartbeat interface can be connected directly or through a switch or router.

• A
  4% (1)
• B
  83% (20)
• C
  4% (1)
• D
  8% (2)

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