QABattle

API Testing / Quiz

429 and the Art of Backing Off

Quotas, Retry-After, sliding windows, and the headers that tell a client to slow down before it gets slammed.

Difficulty
Easy
Format
Quiz
Points
100
Estimate
8 min

// MISSION BRIEF

Your Mission

Rate limiting is where a healthy API says "not so fast". This quiz covers the correct status code, the headers a good client obeys, the window bug attackers love, and how to test a limit without becoming the thing it defends against.

// FIRST CONTACT

Battle teaser

The correct status code for 'you have exceeded your request quota':

  1. A503 Service Unavailable
  2. B400 Bad Request
  3. C403 Forbidden
  4. D429 Too Many Requests
Answers, scoring, hints, and the full battle stay sealed.

// SKILL TAGS

apirate-limitinghttpresilience