Design a diagram.
💡 Model Answer
Designing a diagram usually means creating a visual representation of a system or process. For a simple user‑authentication flow, the diagram would include: a client (web or mobile) sending credentials to an authentication service; the service validating credentials against a user database; issuing a JSON Web Token (JWT) upon success; and the client storing the token for subsequent API calls. The diagram should show the sequence: client → auth service → database → auth service → client. Add error paths for invalid credentials or expired tokens. Label each component, the protocols used (HTTPS, OAuth2), and any security measures (TLS, password hashing). This diagram helps stakeholders understand the flow, identify bottlenecks, and plan for scaling or adding features like multi‑factor authentication.
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