______ servers synchronize directory servers from different vendors.

• A. Synchronization
• B. LDAP
• C. Metadirectory
• D. Central authentication

Answer: (C)

When you have directory services from multiple vendors, you need a centralized way to keep all of them in sync. A metadirectory serves as that bridge, connecting diverse directory servers (for example, LDAP-based directories, Active Directory, and others) and synchronizing their data. It handles attribute mapping between different schemas, resolves conflicts, and propagates changes so updates in one directory appear in the others. This enables unified identity management and provisioning across heterogeneous systems.

This differs from LDAP, which is a protocol for querying and updating a single directory rather than coordinating multiple directories. And generic synchronization or central authentication concepts don’t by themselves describe the cross-vendor directory synchronization role that a metadirectory provides.