An office experienced a long power outage that will require the servers to be powered on manually by a technician once a power is restored. Based on server roles, which of the following servers…

A directory server such as Active Directory Domain Services provides centralized authentication and authorization for every other server and client on the network. Without a functioning directory server, file servers cannot validate user permissions, web servers cannot authenticate requests, and database servers may be unable to authorize connections, making the directory server the critical foundation that all other roles depend on.

A file server relies on the directory server to authenticate users and enforce access control lists on shared resources, so it cannot function correctly until the directory server is online.

A web server typically depends on directory services for user authentication and may also require database connectivity, placing it downstream of both in the startup sequence.

A database server may require directory services for integrated authentication and access control, so it should be brought online after the directory server is available.