GitHubGithub GH-600 Agentic AI Developer Certification ·EN ·Updated 15 Jul 2026

Two Copilot coding agent pull requests were opened from separate issue assignments. One PR updates the shared authentication middleware, and the other adds a payment callback that depends on the middleware behaviour. The merge queue fails after both PRs are queued. Which response should you take first? Select one answer.

Workflow: merge-queue-validation
Event: merge_group
Base branch: main
Merge group:
  - PR #231 agent/auth-timeout github-copilot[bot]
  - PR #236 agent/payment-callback github-copilot[bot]

Run npm test -- --runInBand
FAIL test/payment-callback.integration.test.js

Expected: 401 retry challenge
Received: 403 terminal denial

Coordination report:
- PR #231 changed src/auth/middleware.ts
- PR #236 changed src/payment/callback.ts
- PR #236 was generated from issue context before PR #231 updated middleware behavior
- Reviewer note on #236: "Assumes previous auth retry contract."
Conclusion: failure
Required check: merge-queue-validation

Choose an answer

Tap an option to check your answer.

Pass your exam — without the endless answer hunt

Get every verified question and explanation for this exam in one place, and save hours of prep. 1,000+ certifications · 20+ languages · free to start.

Pass your exam faster No card needed
✓ Verified by ExamRoll editorial · Updated 15 July 2026
All-in-one access

One subscription. Every exam.

Every plan unlocks unlimited answer search, practice tests, AI explanations, and the full resource library — in 20+ languages.

Monthly
24.87
Just €0.83/day
Everything included:
  • Unlimited answer search
  • Unlimited practice tests
  • AI-powered explanations
  • Full resource library
  • 20+ languages
  • Weekly content updates
  • Rewards & referrals
  • Priority support
Start free trial

No credit card required*

Best value
12 months
179.87
Just €0.49/daySave 40%
Everything included:
  • Unlimited answer search
  • Unlimited practice tests
  • AI-powered explanations
  • Full resource library
  • 20+ languages
  • Weekly content updates
  • Rewards & referrals
  • Priority support
Start free trial

No credit card required*

✓ Free plan included · ✓ Cancel anytime · ✓ All plans unlock the full product