Your company has an Azure subscription named Sub1 that is associated to an Azure Active Directory Azure (Azure AD) tenant named contoso.com. The company develops a mobile application named App1…

Question

Options

• Aa redirect URI
• Ba reply URL
• Ca key
• Dan application ID

• A
  95% (61)
• C
  3% (2)
• D
  2% (1)

Explanation

Explanation

When registering an application that uses the OAuth 2 implicit grant type, Azure AD requires a redirect URI (also called a redirect endpoint) to know where to send the access token after authentication is complete - this is the URI the developer defines in their app where Azure AD will redirect the user with the token. Option B (reply URL) is a common distractor because it is essentially an older term for redirect URI used in legacy Azure AD portals; however, the current and technically correct terminology in modern Azure AD app registration is "redirect URI," making A the better answer. Option C (a key) is incorrect because keys/client secrets are used for confidential clients (like web apps/APIs authenticating server-side), not for mobile apps using the implicit grant flow, which relies on the redirect URI instead. Option D (an application ID) is incorrect because the application ID (client ID) is generated by Azure AD after registration - it's something you receive, not something you provide.

Memory Tip: Think of the redirect URI as the app's "return address" - you must tell Azure AD where to deliver the token, and only the developer knows where their app is listening. If you're registering (not already registered), you give the URI; Azure gives you the App ID.

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