In NDB, database groups are used to manage multiple Microsoft SQL Server databases collectively, enabling centralized administration and protection policies. The statement "Databases within a database group can share multiple Time Machine configurations" is true. A Time Machine in NDB manages snapshots and log backups for recovery, and a database group can be associated with multiple Time Machine configurations to support different retention policies or recovery point objectives (RPOs) for the databases within the group. This flexibility allows tailored data protection strategies.
Other options are incorrect:
A. Microsoft recommends 35 databases within a single database group: There is no specific Microsoft recommendation for this limit; NDB imposes its own constraints based on performance and resource usage.
C. NDB supports one database group per database server VM or database server cluster: NDB allows multiple database groups per server or cluster, depending on configuration.
D. Databases within a database group must be all of the same size: NDB does not enforce uniform database sizes within a group.
Thus, the verified answer is B, reflecting NDB’s Time Machine flexibility.
Official Nutanix Database Automation References
Nutanix Database Management & Automation (NDMA) course, Module 3: Managing Database Instances, Lesson 3.6: Managing Database Groups.
Nutanix Certified Professional - Database Automation (NCP-DB) v7.5Knowledge Objectives, Section 3: Manage NDB Solutions, Objective 3.5: Configure Database Groups (applicable to v7.5).
Nutanix NDB Administration Guide: "Database Groups and Time Machine Configurations" section.
