Azure Active Directory (Azure AD) is a cloud-based identity and access management service from Microsoft that allows your workers to sign in and access resources such as Microsoft 365, the Azure portal, and hundreds of other SaaS apps. Active Directory (AD) is a database and collection of services that connects users to the network resources they require to complete their tasks. The database (or directory) holds crucial information about your environment, such as who is permitted to do what and how many clients and computers there are.
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