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How can rate limiting be combined with user authentication to improve API security?

hard🚀 Application Q9 of Q15
Rest API - Rate Limiting and Throttling
How can rate limiting be combined with user authentication to improve API security?
AApply rate limits per authenticated user to prevent abuse by individual accounts.
BApply the same rate limit to all users regardless of identity.
CDisable rate limiting for authenticated users.
DUse rate limiting only on unauthenticated requests.
Step-by-Step Solution
Solution:
  1. Step 1: Understand user-based rate limiting

    Applying limits per user helps stop abuse from specific accounts.
  2. Step 2: Identify best practice

    Per-user limits protect service fairly and improve security by isolating bad actors.
  3. Final Answer:

    Apply rate limits per authenticated user to prevent abuse by individual accounts. -> Option A
  4. Quick Check:

    User-based rate limiting improves security = A [OK]
Quick Trick: Limit requests per user to stop individual abuse [OK]
Common Mistakes:
MISTAKES
  • Using global limits ignores user differences
  • Disabling limits for authenticated users risks abuse
  • Limiting only unauthenticated misses logged-in abuse

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