CompTIA Security Plus Mock Test Q915

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


Correct Answer: C
Section: Access Control and Identity Management

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.

Incorrect Answers:
A: Two-factor authentication refers to an authentication method used to gain access, not a protocol.
B: Remote Authentication Dial-In User Service (RADIUS) is a mechanism that allows authentication of remote and other network connections. You should use RADIUS when you want
to improve network security by implementing a single service to authenticate users who connect remotely to the network.
D: Biometrics is a physical security measure which makes use of some kind of unique biological trait as a means of identification. It is not a protocol.

References:
Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis, 2014, pp. 154, 147, 375
https://msdn.microsoft.com/en-us/library/aa367008%28v=vs.85%29.aspx