Which of the following protocols provides for mutual authentication of the client and server?

A.
Two-factor authentication

B.
Radius

C.
Secure LDAP

D.
Biometrics

Explanation:
C: The LDAP directory service is based on a client-server model. The function of LDAP is to
enable access to an existing directory. Because it is a client-server model it makes provision for
mutual authentication between the two parties.