Comprehensive and Detailed Explanation From Exact Extract of Nutanix End User Computing documents:

According to the Prism Central Admin Guide regarding Security and User Management:

RBAC Definition: Role-Based Access Control (RBAC) is the specific feature designed to map users and groups (such as an Active Directory "Department" group) to specific sets of permissions (Roles).

Application: An administrator can define a role (e.g., "HR Admin") with specific privileges and assign it to the "HR Department" AD group. This ensures that permissions are granted granularly based on the department, fulfilling the security requirement efficiently.

Why not others:

Network Segmentation controls traffic flow (who can talk to whom), not administrative permissions.

Cluster Lockdown disables password authentication for SSH, which is a hardening step, not a permission management strategy.