Why is the backup lead configuration important in an MCM Group?

Question

Options

• AThe configuration allows sharing of the lead chassis IOMs and Management Module databases.
• BThe backup lead chassis facilitates management of systems when the existing lead chassis fails.
• CThe backup chassis is promoted automatically if the lead chassis fails.
• DThis configuration allows configuration changes from the backup chassis.

• A
  6% (1)
• B
  88% (14)
• D
  6% (1)

Explanation

In an MCM (Multi-Chassis Management) Group, the backup lead configuration exists to ensure management continuity - if the primary lead chassis becomes unavailable, the designated backup lead chassis takes over management responsibilities for the entire group. Option B is correct because this is the fundamental purpose of designating a backup lead: keeping the group manageable during a failure event.

Why the distractors are wrong:

• A is incorrect because IOM and Management Module database sharing is a feature of the MCM Group itself, not a function specific to the backup lead configuration.
• C is a tempting trap - the backup lead does not automatically promote itself; promotion typically requires manual intervention, making this distinction important for the exam.
• D is incorrect because configuration changes are restricted to the active lead chassis; the backup lead does not have write authority while in standby.

Memory tip: Think of the backup lead as a "cold spare manager" - it's ready to step in, but only when called upon manually, and it watches rather than acts while the lead is healthy.

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