As a security administrator, you are setting up access to a sensitive system that requires secure and streamlined user identity verification. You want to provide a method that allows users to log in once and access multiple related, yet independent software systems without having to authenticate each time they access each system. Which solution should you implement?
Password vaults
Remote Authentication Dial-In User Service (RADIUS)
Security Assertion Markup Language (SAML)
Single sign-on (SSO)