Which of the following BEST describes the role of a directory server in a public key infrastructure (PKI)?

A. Encrypts the information transmitted over the network

B. Makes other users certificates available to applications

C. Facilitates the implementation of a password policy

D. Stores certificate revocation lists (CRLs)

Explanation:

A directory server makes other users certificates available to applications. Encrypting the information transmitted over the network and storing certificate revocation lists (CRLs) are roles performed by a security server. Facilitating the implementation of a password policy is not relevant to public key infrastructure (PKl).