What is required for App1 to programmatically sign in to Azure Active Directory (Azure AD)?

You have an on-premises app named App1 that accesses Azure resources by using credentials stored in a configuration file.

You plan to upgrade App1 to use an Azure service principal.

What is required for App1 to programmatically sign in to Azure Active Directory (Azure AD)?
A . the application ID, a client secret, and the object ID
B. a client secret, the object ID, and the tenant ID
C. the application ID, a client secret, and the tenant ID
D. the application ID, a client secret, and the subscription ID

View Answer

Answer: C

Explanation:

https://docs.microsoft.com/en-us/azure/active-directory/develop/app-objects-and-service-principals "When you’ve completed the app registration, you’ve a globally unique instance of the app (the application object) which lives within your home tenant or directory. You also have a globally unique ID for your app (the app or client ID). In the portal, you can then add secrets or certificates and scopes to make your app work, customize the branding of your app in the sign-in dialog, and more."