The existing stacking switch that has been powered on and configured for stacking, and is connected to the already running stacking system through stacking cables. Which of the following…

Question

Options

• ADuring this process, the master switches of the two stack systems will compete for a better master switch.
• BAll members of the stack system that failed the election do not need to restart. They only need to synchronize the configuration files and system files of the new master switch.
• CThis process is non-blocking and merging
• DThis process is stacking and joining

• A
  17% (10)
• B
  75% (45)
• C
  8% (5)

Explanation

Checking if any skills apply to this tutoring/explanation task - none of the available skills target exam explanation directly, so proceeding.

B is incorrect because when a stack merge occurs and one stack loses the master election, all members of the losing stack must restart - not simply synchronize files. Restarting is required so they can re-initialize under the new master's control and adopt its configuration and system files from scratch.

D is incorrect because the terminology is wrong. The scenario describes two separately running stack systems being connected, which is a "stack merge" (合并) process - not a "stacking and joining" process. Joining refers to a standalone, newly added switch entering an existing stack for the first time.

Why A is correct: Master election between the two competing stack masters is a genuine step in the merge process; the switch with superior priority (or MAC address as tiebreaker) wins and becomes the unified master.

Why C is correct: Calling this a "merge" accurately names the process, and the dominant/winning stack continues forwarding traffic during the event (it is effectively non-blocking for the surviving side).

Memory tip: Think "MERGE = Masters Compete, Losers Restart." If two running stacks meet → it's a merge, not a join, and the losing side can't just sync files - they have to reboot entirely. Any answer that says losers skip the restart, or calls the process a "join," is wrong.

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