What functionality does SSO enforcement provide for user authentication?

The functionality of SSO (Single Sign-On) enforcement requires all users to authenticate exclusively using SSO methods. This means that once a user logs in through a single authentication process, they gain access to a variety of applications and services without having to log in again for each one. This centralized approach improves security and user experience by ensuring that only authenticated users can access the resources, while also managing user credentials in a more streamlined manner.

SSO enforcement enhances security by ensuring that a consistent authentication method is used, reducing potential vulnerabilities associated with multiple logins, such as password fatigue where users might choose weaker passwords or reuse them across different services. By mandating SSO, organizations can better track user access and enforce security policies uniformly.

The other response options do not capture the primary functionality of SSO enforcement. For instance, while SSO may simplify the login process, it does not inherently eliminate the requirement for passwords in all applications, nor does it allow multiple authentication methods—these aspects are typically part of broader SSO implementations but do not define SSO enforcement specifically.