When an administrator schedules the removal of an existing database clone to minimize user impact (e.g., during weekend hours), the "Update Removal Schedule" feature in NDB allows for planning the operation. Among the options, the "Delete supporting snapshot from NDB" is pre-selected as a non-optional action. This ensures that the snapshot data associated with the clone is removed along with the clone itself, maintaining storage efficiency and consistency in the Time Machine framework. Other options may be selectable but are not mandatory by default.
Option A (Create an alert before removal) is incorrect because alerts are optional notifications, not a required action.
Option B (Delete supporting snapshot from NDB) is correct as it is a default, non-optional step to clean up snapshot data.
Option C (Unregister the database clone from NDB) is incorrect because unregistration is an optional administrative step, not pre-selected.
Option D (Delete the database clone from the VM) is incorrect because the clone deletion itself is the primary action, but snapshot deletion is the non-optional supporting task.
References
Nutanix Database Service (NDB) User Guide, Chapter 5: Configuring Time Machines, Section: Managing Clone Removal
Nutanix Certified Professional - Database Automation (NCP-DB) v7.5Blueprint, Section 5: Protect Databases Using Time Machine
