Bird
0
0

How can you securely allow a mobile app to refresh its OAuth 2.0 access token without asking the user to log in again?

hard📝 Application Q9 of 15
Rest API - Authentication and Authorization
How can you securely allow a mobile app to refresh its OAuth 2.0 access token without asking the user to log in again?
ASend the original authorization code again
BStore user password in the app and reuse it
CUse a refresh token with limited scope and expiration
DUse client credentials grant instead
Step-by-Step Solution
Solution:

  1. Step 1: Understand token refresh in OAuth 2.0

    Refresh tokens allow clients to get new access tokens without user login.

  2. Step 2: Evaluate options for secure refresh

    Using refresh tokens with limited scope and expiration is secure and standard practice.

  3. Final Answer:

    Use a refresh token with limited scope and expiration -> Option C

  4. Quick Check:

    Secure refresh = refresh token use [OK]
Quick Trick: Refresh tokens renew access without user login [OK]
Common Mistakes:
  • Storing passwords in apps
  • Reusing authorization codes
  • Using client credentials grant for user tokens

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More Rest API Quizzes
Authentication and Authorization - Bearer token authentication - Quiz 9hard Authentication and Authorization - Token refresh mechanism - Quiz 7medium Error Handling - Error response structure - Quiz 6medium HATEOAS and Linking - Link relations in responses - Quiz 5medium Pagination Patterns - Why pagination manages large datasets - Quiz 14medium Pagination Patterns - Link headers for navigation - Quiz 11easy Rate Limiting and Throttling - Fixed window algorithm - Quiz 1easy Rate Limiting and Throttling - Per-user vs per-IP limits - Quiz 14medium Rate Limiting and Throttling - Fixed window algorithm - Quiz 10hard Rate Limiting and Throttling - Fixed window algorithm - Quiz 14medium