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If a Grid Master Fails, what can be promoted to take the place of the Grid Master? (Choose one.)
Correct Answer: B
Comprehensive and Detailed In-Depth Explanation:Grid Master (GM) failure recovery: * B:A Grid Master Candidate (GMC), pre-designated in Grid Manager (Grid > Members), can be promoted (Grid > Promote GMC) to replace a failed GM, assuming its role. Correct. * A:Grid Manager is the UI, not a device. Incorrect. * C:Not all members are GMCs-only designated ones qualify. Incorrect. * D:No "standby GM" role-GMC is the term. Incorrect. * Practical Example:In an INE lab, promote a GMC after GM failure, test sync, and troubleshoot promotion issues.References:Infoblox NIOS Administrator Guide - Grid Master Promotion; INE Course Content: NIOS DDI Grid Troubleshooting.