As shown in the figure, the user has configured the relevant parameters of the VRRP backup group, and the parameters that are not shown in remain in the default state. R1 with priority 240 is now…

Question

Options

• AR2 is still a Backup device
• BR3 will become a Backup device
• CR1 will become a Backup device
• DR2 will be the Master device

• A
  73% (37)
• B
  20% (10)
• D
  8% (4)

Explanation

In this VRRP scenario, the figure (not visible here) establishes R3 as the current Master with a priority higher than 240, and R2 already serving as a Backup. When R1 joins with priority 240, since R3's priority exceeds 240, R3 retains the Master role - meaning R1 can only be elected as a Backup (C is correct), and R2's existing Backup status is unchanged (A is correct).

Why the distractors are wrong:

• B is wrong - R3 already holds the highest priority in the group, so it keeps the Master role; adding R1 doesn't demote R3 to Backup.
• D is wrong - R2's priority is lower than R3's, so R2 has no basis to claim the Master role simply because a new router joined.

Memory tip: In VRRP, think of it as a simple numbers game - the highest priority always wins Master. If a newcomer's priority doesn't beat the current Master's, the newcomer slots in as just another Backup, and everyone else's role stays frozen. When the question says "parameters not shown remain default," that's your hint that the figure reveals a key priority value (R3's) that anchors the whole answer.

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