Correct Answer: C
Explanation/Reference:
Explanation:
Legacy single sign on (SSO) is a mechanism where users can authenticate themselves once, and then a central repository of their credentials is used to launch various legacy applications.
An SSO solution may provide a bottleneck or single point of failure. If the SSO server goes down, users are unable to access network resources. This is why it's a good idea to have some type of redundancy or fail-over technology in place.
Incorrect Answers:
A: Legacy single sign on (SSO) enables users to sign on once; they do not have to sign on to every application.
B: Legacy single sign on (SSO) is not technology to manage passwords consistently across multiple platforms, enforcing policies such as password change intervals. This can be done with password synchronization.
D: Legacy single sign on (SSO) is not another way of referring to SESAME and KryptoKnight.
References:
Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, p. 177