Exam AZ-500 topic 2 question 90 discussion

You should create an invite for User1 to join your Azure AD tenant as a guest user. This will allow him to sign in with his existing credentials ([email protected]), and you can then grant him access to the resources in the tenant. This option also minimizes administrative effort as it is a simple process to invite a guest user.

I believe I saw this question somewhere else and the answer was to create a custom domain. I am not sure myself. Can someone so sure the answer is C, please explain why option B would not be the answer?.

In exam 1/28/24

C. Create an invite for User1.

C is the answer. https://learn.microsoft.com/en-us/azure/active-directory/external-identities/external-identities-overview#b2b-collaboration With B2B collaboration, you can invite anyone to sign in to your Azure AD organization using their own credentials so they can access the apps and resources you want to share with them. Use B2B collaboration when you need to let external users access your Office 365 apps, software-as-a-service (SaaS) apps, and line-of-business applications, especially when the partner doesn't use Azure AD or it's impractical for administrators to set up a mutual connection through B2B direct connect. There are no credentials associated with B2B collaboration users. Instead, they authenticate with their home organization or identity provider, and then your organization checks the guest user’s eligibility for B2B collaboration.

Looks like b2b collaboration: https://learn.microsoft.com/en-us/azure/active-directory/external-identities/external-identities-overview

C. Create an invite for User1

correct, you invite the external user to your tenant.