______ is the centralized policy based management of all information required for access to corporate systems by people, machines, programs, or other resources.

• A. Identity management
• B. Directory service
• C. Meta-directory service
• D. Meta-identity management

Answer: (A)

Centralized policy-based management of access across people, machines, programs, and other resources is identity management. It serves as the control plane for who can access what, enforcing access decisions consistently across the entire IT environment. Identity management handles authentication (verifying identity), authorization (granting rights), and provisioning (creating, updating, or revoking access) in a single, cohesive framework, and it often includes governance and auditing to support compliance.

A directory service is mainly a database that stores identity information used by applications; it supports authentication and lookups but doesn’t by itself govern access policies across all systems. A meta-directory service collects and harmonizes identity data from multiple sources to enable provisioning, acting as a data integration layer rather than the central policy manager. Meta-identity management isn’t a standard term for this capability.