Final answer:
The Apache Ambari component that integrates with LDAP or Active Directory for authentication and access control is the A. Authorization Provider.
Step-by-step explanation:
The component of the Apache Ambari architecture that integrates with an organization's LDAP or Active Directory service is A. Authorization Provider. Apache Ambari is a management platform for provisioning, managing, and monitoring Apache Hadoop clusters. Ambari includes an Authorization Provider that allows for the integration with existing LDAP or Active Directory services. This facilitates user authentication and access control within the Ambari environment. By linking Ambari with an organization's LDAP/Active Directory, it streamlines user management and ensures consistent security policies across enterprise systems.
For example, an organization can configure the Authorization Provider in Ambari to connect to its LDAP server. This integration allows users to authenticate with their LDAP credentials and provides centralized user management.