Which are predefined roles for cluster administrators in clustered ONTAP 8.2? (choose all that apply)

The 'admin' role is the default predefined cluster administrator role, granting full unrestricted access to all clustershell commands and resources.

The 'readonly' role is a predefined cluster administrator role that permits read-only access to the clustershell, enabling monitoring without any configuration capability.

The 'vsadmin' role is a predefined SVM administrator role scoped to a single Storage Virtual Machine, not a cluster-level administrator role.

The 'vsadmin-backup' role is a predefined SVM administrator role restricted to backup-related operations on an SVM, not applicable at the cluster level.

The 'vsadmin-readonly' role is a predefined SVM administrator role with read-only access to an SVM, not a cluster-level predefined role.

'backup' is not a recognized predefined role in clustered ONTAP 8.2 for either cluster administrators or SVM administrators.

The 'vsadmin-autosupport' role is a predefined SVM administrator role limited to AutoSupport operations on an SVM, not a cluster-level role.

The 'none' role is a predefined cluster administrator role that grants zero CLI access, used to explicitly block a user account from interacting with the cluster shell.