CompTIA Security+ Question G-20

A company has purchased an application that integrates into their enterprise user directory for account authentication. Users are still prompted to type in their usernames and passwords. Which of the following types of authentication is being utilized here?

A. Separation of duties
B. Least privilege
C. Same sign-on
D. Single sign-on

Answer: C

Same sign-on requires the users to re-enter their credentials but it allows them to use the same credentials that they use to sign on locally.