• Explain the concept ofclaimsinOIDC.

  • How would you handledifferent user roles and permissionswithin anOAuth 2.0 protected application? Expertise Level: Mid-Level/Senior

  • How can you prevent CSRF ( Cross-Site Request Forgery ) attacks in OAuth 2.0 flows?

  • Describe the challenges you faced while implementing OAuth 2.0 or OIDC in a previous project.

  • How would you design an OAuth 2.0 authorization server?

  • Explain the different OAuth 2.0 roles (Resource Owner, Client, Authorization Server, Resource Server).

  • What are thebest practicesfor storingtokens securely?

  • How do you handletoken expirationandrenewalin aclient application?

  • What are JWTs (JSON Web Tokens) , and how are they used in OIDC ?

  • Explain the different token types in OAuth 2.0 (access token,refresh token,ID token).

  • How can you revoke access tokens and refresh tokens?

  • How would you debug an OAuth 2.0 integration issue?

  • What is the difference between Implicit and Authorization Code grant types? Which is more secure and why? Expertise Level: Mid Level

  • Describe how you would integrate with an identity provider like Okta or Auth0. Expertise Level of Developer Required to Answer this Question

  • How can you secure an API using OAuth 2.0?

  • What are the potentialvulnerabilitiesinOAuth 2.0, and how can youmitigatethem?

  • What are the different OAuth 2.0 flows, and which one is most suitable for a mobile application? Expertise Level of Developer Required to Answer this Question

  • Explain the concept of scopes in OAuth 2.0 and OIDC .

  • How can you validate an ID Token?

  • What is an ID Token , and what information does it contain?

  • How does OIDC enhance OAuth 2.0 ?

  • What are thesecurity considerationswhen implementingOAuth 2.0?

  • How doesOAuth 2.0handlerefresh tokens?

  • What is the role of the redirect URI in OAuth 2.0? Expertise Level of Developer Required to Answer this Question: Mid Level

  • Describe the flow of the Authorization Code grant type .