The proposed solution only addresses the authentication requirement by configuring the Azure Web App to require an Azure Active Directory (Azure AD) login. This ensures that all users are authenticated. However, it does not fulfill the authorization requirement, which is to assign permission levels (admin, normal, reader) based on the user's Azure AD group membership. Implementing authorization requires additional steps, such as configuring the application registration in Azure AD to emit group or role claims and modifying the application code to interpret these claims to grant appropriate permissions. Therefore, the solution is incomplete.

A. Yes: This is incorrect because the solution only enforces authentication. It does not implement the required authorization logic to check a user's group membership and assign a permission level.

1. Microsoft Docs - Configure your App Service or Azure Functions app to use Azure AD login: This document explains the process of setting up authentication, which is what the proposed solution describes. It also has a section titled "Access user claims in app code," which clarifies that after authentication is configured, the application code must be used to access claims (like roles or groups) to make authorization decisions. This confirms that the proposed solution is only the first step and does not meet the full goal. (See section: Access user claims in app code).

2. Microsoft Docs - Tutorial: Add app roles to your application and receive them in the token: This tutorial details the necessary steps to implement role-based authorization, a common pattern for the scenario described. It involves defining roles in the Azure AD app registration, assigning users/groups to those roles, and then having the application code check for these roles in the token. This demonstrates the additional configuration required beyond simple authentication. (See section: Declare roles for an application).

3. Microsoft Docs - Configure group claims for applications by using Azure Active Directory: This document provides an alternative method for authorization by configuring the Azure AD application to include the user's security group memberships in the token. The application code would then need to parse these group claims to implement the required permission levels. This highlights that authorization based on groups is a distinct configuration step not covered by the proposed solution. (See section: Add group claims to tokens for SAML, JWT, and UPN-based applications).