Explanation
More efficient use of storage capacity for each node and reduced administrative overhead resulting in lower cost are two benefits of using the capacity pools licensing model for ONTAP Select. Capacity pools allow you to allocate storage capacity from a shared pool to multiple ONTAP Select nodes, which reduces wasted space and simplifies management.

Explanation
B and D are correct because volume and tier are two elements of the Azure NetApp Files hierarchy. A volume is a logical container for data that can be accessed through SMB or NFS protocols. A tier is a performance level that determines the throughput and latency of a volume. The other options are not elements of the Azure NetApp Files hierarchy.
References:https://docs.microsoft.com/en-us/azure/azure-netapp-files/azure-netapp-files-understand-hierarchy

Explanation
A Storage Admin is a user role in NetApp Cloud Manager that enables you to create and manage working environments, such as Cloud Volumes ONTAP systems or Cloud Volumes Service volumes. A Storage Admin can also perform storage operations, such as creating volumes or snapshots.