Question 22

Explanation

Azure Active Directory (Azure AD) is Microsoft's Identity and Access Management (IAM) solution for the cloud. Within Azure AD, there are several types of identities that can be used to authenticate users, groups, and applications. The three valid identity types in Azure AD are:

* Cloud-only identities: These are also known as "Microsoft online accounts" and are created in Azure AD. They are used for cloud-based applications such as Office 365 or Azure.

* Azure AD B2C identities: Azure AD B2C (business-to-consumer) is a service that enables organizations to authenticate their customers using social, enterprise, and local accounts such as Facebook, LinkedIn, and email.

* On-premises identities: These are users and groups that are synchronized from an on-premises directory, such as Active Directory (AD), to Azure AD using Azure AD Connect. These identities are used for hybrid environments where some resources are on-premises and others are in the cloud.

LinkedIn identity: This is not a valid identity type in Azure AD. While Azure AD supports authentication with several third-party identity providers such as Facebook, Google, and LinkedIn, these are not considered identity types within Azure AD.

In conclusion, the correct answer to the question is the option LinkedIn identity.

For more information about Azure AD identities and authentication, please refer to the official Microsoft documentation: https://docs.microsoft.com/en-us/azure/active-directory/fundamentals/active-directory-whatis