What does ACL stand for in access control?

What does ACL stand for in access control?

• A. Access Control Layer
• B. Access Control List
• C. Account Control List
• D. Administrative Control Layer

Answer: (B)

ACL stands for Access Control List. It’s a list attached to a resource that specifies which identities (users or groups) have which permissions on that resource. Each entry in the list states the principal and the allowed or denied operations (like read, write, execute). When a request is made to access the resource, the system consults the ACL to decide whether to permit or block the action. This approach is common in file systems and many security models because it centralizes permissions directly on the object. The other options don’t reflect the standard terminology for this concept: they imply layers or general administrative terms rather than a per-object list of permissions.

ACL stands for Access Control List. It’s a list attached to a resource that specifies which identities (users or groups) have which permissions on that resource. Each entry in the list states the principal and the allowed or denied operations (like read, write, execute). When a request is made to access the resource, the system consults the ACL to decide whether to permit or block the action. This approach is common in file systems and many security models because it centralizes permissions directly on the object. The other options don’t reflect the standard terminology for this concept: they imply layers or general administrative terms rather than a per-object list of permissions.