Huawei Certified ICT Associate – SD-WAN (HCIA-SD-WAN) — Question 12

In a VRRP HSB scenario, if the VRRP preemption delay is set to a small value, which of the following problems may occur after a master/backup switchover?

Answer options

• A. The batch backup process cannot be started.
• B. A master/backup switchback is triggered too quickly.
• C. Backup information is incomplete.
• D. Service data on the master and backup WACs is lost.

Correct answer: B

Explanation

Setting a small preemption delay in a VRRP HSB scenario can lead to a rapid switchback, where the backup node takes over too quickly before the network stabilizes. This can cause issues, while the other options do not directly relate to the timing of the switch and are less likely to occur as a result of a quick preemption delay.