Central authentication servers obtain their authentication information from directory servers.

• A. False
• B. True
• C. Cannot determine
• D. Not mentioned

Answer: (B)

Central authentication relies on a directory service as the authoritative source of identity and credential data. Directory servers like LDAP-based directories or Active Directory store user accounts, group memberships, and credential information (often as password hashes). When a user tries to sign in, the central authentication server queries the directory to locate the user and verify the provided credentials. In typical setups, the central server doesn’t keep all passwords itself; it delegates verification and retrieves the necessary attributes from the directory.

So, the statement reflects common practice: authentication information is sourced from directory services, which is why it’s considered true.