Microsoft Security, Compliance, and Identity Fundamentals (SC-900)Describe the capabilities of Microsoft EntraEasy

A small business uses Microsoft 365 and wants to allow employees to use their existing Microsoft Entra ID credentials to access a third-party HR application. Which core Microsoft Entra capability enables this single sign-on (SSO) functionality?

  1. AConditional Access
  2. BSelf-service password reset
  3. CSingle Sign-On (SSO)
  4. DApplication Proxy
Show answer & explanation

Correct answer: C. Single Sign-On (SSO)

Single Sign-On (SSO) is a core capability of Microsoft Entra ID that allows users to access multiple applications and services with a single set of credentials, eliminating the need to re-enter passwords.

Why the other options are wrong

  • A. Conditional Access enforces policies based on conditions, but SSO is the underlying mechanism for seamless access.
  • B. Self-service password reset allows users to reset their own passwords, unrelated to accessing third-party apps.
  • D. Application Proxy provides remote access to on-premises web applications, not primarily for cloud SSO with third-party apps.

Single Sign-On (SSO)

A property of access control of multiple related, but independent, software systems. With SSO, a user logs in once and gains access to all systems without being prompted to log in again.

  • Reduces password fatigue and improves user experience.
  • Enhances security by reducing the attack surface related to multiple passwords.
  • Microsoft Entra ID acts as the identity provider for SSO.

Memory trick: One key unlocks all doors with Entra's core.

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