CompTIA Cloud+ Practice Test 2026 - Free CompTIA Cloud+ Practice Questions and Study Guide

The correct choice is Microsoft ADFS because it is specifically designed to provide a single sign-on (SSO) experience across multiple applications and services. ADFS, or Active Directory Federation Services, enables users to authenticate once and gain access to a range of applications without needing to log in again. This functionality is particularly useful in environments where users need access to various applications across different platforms, such as cloud services and enterprise applications. By using standard protocols like SAML, OAuth, and WS-Federation, ADFS facilitates secure identity federation and eliminates the need for multiple passwords, enhancing both user convenience and security.

Other options, while related to authentication and access management, do not provide the same SSO capabilities. For example, RBAC (Role-Based Access Control) deals with managing user permissions based on roles but does not inherently provide SSO functionality. LDAP (Lightweight Directory Access Protocol) is primarily used for accessing directory services and does not manage authentication across multiple applications in an SSO context. Active Directory serves as a directory service for managing users and computers within a network but requires integration with ADFS to deliver an SSO experience across multiple applications.