LDAP and Kerberos are commonly used for which of the following?

A.
To perform queries on a directory service

B.
To store usernames and passwords for Federated Identity

C.
To sign SSL wildcard certificates for subdomains

D.
To utilize single sign-on capabilities

Explanation:
Single sign-on is usually achieved via the Lightweight Directory Access Protocol (LDAP), although
Kerberos can also be used.