The container used for provisioning databases and deploying NDB is named NDB.

Comprehensive and Detailed 100 to 150 words of Explanation From Nutanix Database Management & Automation (NDMA) topics:

NDB cluster registration must account for storage containers associated with resources that need to be available during cross-cluster operations. Although the NDB control-plane VM and database provisioning operations use the same NDB container in this scenario, NutanixManagementShare is a separate Nutanix-managed service container. Its corresponding remote-container relationship must therefore be represented through storage mapping. Mapping the NDB container to default-container is unnecessary because the NDB server and provisioning storage are already consolidated. Removing SCSI disks from the NDB VM would damage the appliance configuration, while an attached CD-ROM does not justify altering the required storage mapping. This differs from the existing questions, which ask when mapping is required because the NDB server and provisioning containers are separate. Therefore, option A is correct. Nutanix cluster-registration documentation