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What is the main purpose of OAuth 2.0 in REST APIs?

easy📝 Conceptual Q11 of 15
Rest API - Authentication and Authorization
What is the main purpose of OAuth 2.0 in REST APIs?
ATo replace usernames with email addresses
BTo encrypt all data sent between client and server
CTo allow apps to access user data securely without sharing passwords
DTo speed up API response times
Step-by-Step Solution
Solution:

  1. Step 1: Understand OAuth 2.0's role

    OAuth 2.0 is designed to let apps access user data safely without needing the user's password.

  2. Step 2: Compare options to OAuth 2.0 purpose

    Only To allow apps to access user data securely without sharing passwords correctly describes this purpose. Options A, B, and D describe unrelated functions.

  3. Final Answer:

    To allow apps to access user data securely without sharing passwords -> Option C

  4. Quick Check:

    OAuth 2.0 = Secure data access without password sharing [OK]
Quick Trick: OAuth 2.0 = safe access without password sharing [OK]
Common Mistakes:
  • Confusing OAuth with encryption protocols
  • Thinking OAuth replaces usernames
  • Assuming OAuth speeds up APIs

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