
Explanation:
Single sign-on is an authentication method that allows users to sign in using one set of credentials to login across applications. Single sign-on makes it easier to manage passwords and increases security capabilities.
Authorization is the process of establishing what level of access a legitimate user or service should have.
During sign-in, Conditional Access collects signals from the user, makes decisions based on those signals, and then enforces that decision by allowing or denying the access request or challenging for a multifactor authentication response.
Reference:
https://docs.microsoft.com/learn/modules/secure-access-azure-identity-services/3-what-is-azure- active-directory
https://docs.microsoft.com/learn/modules/secure-access-azure-identity-services/2-compare- authentication-authorization
https://docs.microsoft.com/learn/modules/secure-access-azure-identity-services/4-what-are-mfa- conditional-access