1. What is Blue-green deployment ? Junior A. incrementally releasing changes with automated metric analysis gating each step B. a DORA metric measuring how long it takes to restore service after a failure C. routing user segments to different versions to compare behavior or business metrics D. running two identical environments and switching traffic from old (blue) to new (green) at once
2. Which term means: "running two identical environments and switching traffic from old (blue) to new (green) at once"? Junior A. Mean time to recovery B. A/B testing C. Blue-green deployment D. Dark launch
3. Which statement is correct? Junior A. Blue-green deployment — incrementally releasing changes with automated metric analysis gating each step B. Blue-green deployment — running two identical environments and switching traffic from old (blue) to new (green) at once C. Blue-green deployment — a DORA metric measuring how often an organization successfully releases to production D. Blue-green deployment — a DORA metric measuring how long it takes to restore service after a failure
4. What is Canary release ? Junior A. mirroring real production requests to a new version without affecting user responses B. gradually shifting a small percentage of traffic to a new version to limit blast radius C. a DORA metric measuring how often an organization successfully releases to production D. replacing instances of the old version with the new version incrementally
5. Which term means: "gradually shifting a small percentage of traffic to a new version to limit blast radius"? Junior A. Automated rollback B. Rolling deployment C. Canary release D. A/B testing
6. Which statement is correct? Junior A. Canary release — a quick post-deploy check that core functionality works before full rollout B. Canary release — reverting a release automatically when health checks or SLOs breach thresholds C. Canary release — gradually shifting a small percentage of traffic to a new version to limit blast radius D. Canary release — running two identical environments and switching traffic from old (blue) to new (green) at once
7. What is Rolling deployment ? Junior A. a quick post-deploy check that core functionality works before full rollout B. incrementally releasing changes with automated metric analysis gating each step C. replacing instances of the old version with the new version incrementally D. a runtime toggle that enables or disables functionality without redeploying
8. Which term means: "replacing instances of the old version with the new version incrementally"? Junior A. Shadow traffic B. Deployment frequency C. Rolling deployment D. Rollback
9. Which statement is correct? Junior A. Rolling deployment — a DORA metric measuring how long it takes to restore service after a failure B. Rolling deployment — mirroring real production requests to a new version without affecting user responses C. Rolling deployment — replacing instances of the old version with the new version incrementally D. Rolling deployment — gradually shifting a small percentage of traffic to a new version to limit blast radius
10. What is Rollback ? Junior A. replacing instances of the old version with the new version incrementally B. reverting to a previously known-good version after a bad release C. reverting a release automatically when health checks or SLOs breach thresholds D. mirroring real production requests to a new version without affecting user responses
11. Which term means: "reverting to a previously known-good version after a bad release"? Junior A. Blue-green deployment B. Shadow traffic C. Rollback D. Dark launch
12. Which statement is correct? Junior A. Rollback — reverting to a previously known-good version after a bad release B. Rollback — mirroring real production requests to a new version without affecting user responses C. Rollback — gradually shifting a small percentage of traffic to a new version to limit blast radius D. Rollback — reverting a release automatically when health checks or SLOs breach thresholds
13. What is Feature flag ? Junior A. routing user segments to different versions to compare behavior or business metrics B. a runtime toggle that enables or disables functionality without redeploying C. replacing instances of the old version with the new version incrementally D. running two identical environments and switching traffic from old (blue) to new (green) at once
14. Which term means: "a runtime toggle that enables or disables functionality without redeploying"? Junior A. Shadow traffic B. A/B testing C. Change failure rate D. Feature flag
15. Which statement is correct? Junior A. Feature flag — reverting a release automatically when health checks or SLOs breach thresholds B. Feature flag — a runtime toggle that enables or disables functionality without redeploying C. Feature flag — a DORA metric measuring how long it takes to restore service after a failure D. Feature flag — replacing instances of the old version with the new version incrementally
16. What is Smoke test ? Junior A. running two identical environments and switching traffic from old (blue) to new (green) at once B. a DORA metric measuring how long it takes to restore service after a failure C. a runtime toggle that enables or disables functionality without redeploying D. a quick post-deploy check that core functionality works before full rollout
17. Which term means: "a quick post-deploy check that core functionality works before full rollout"? Junior A. Dark launch B. Progressive delivery C. Smoke test D. Canary release
18. Which statement is correct? Junior A. Smoke test — a DORA metric measuring how long it takes to restore service after a failure B. Smoke test — a quick post-deploy check that core functionality works before full rollout C. Smoke test — a DORA metric measuring the percentage of deployments causing a production failure D. Smoke test — reverting a release automatically when health checks or SLOs breach thresholds
19. What is Progressive delivery ? Mid A. incrementally releasing changes with automated metric analysis gating each step B. mirroring real production requests to a new version without affecting user responses C. a DORA metric measuring how often an organization successfully releases to production D. reverting to a previously known-good version after a bad release
20. Which term means: "incrementally releasing changes with automated metric analysis gating each step"? Mid A. Deployment frequency B. Progressive delivery C. Change failure rate D. Automated rollback
21. Which statement is correct? Mid A. Progressive delivery — routing user segments to different versions to compare behavior or business metrics B. Progressive delivery — running two identical environments and switching traffic from old (blue) to new (green) at once C. Progressive delivery — incrementally releasing changes with automated metric analysis gating each step D. Progressive delivery — reverting to a previously known-good version after a bad release
22. What is Dark launch ? Mid A. a DORA metric measuring how often an organization successfully releases to production B. incrementally releasing changes with automated metric analysis gating each step C. deploying a feature to production but keeping it hidden from users while testing in real conditions D. a quick post-deploy check that core functionality works before full rollout
23. Which term means: "deploying a feature to production but keeping it hidden from users while testing in real conditions"? Mid A. Automated rollback B. A/B testing C. Canary release D. Dark launch
24. Which statement is correct? Mid A. Dark launch — deploying a feature to production but keeping it hidden from users while testing in real conditions B. Dark launch — a quick post-deploy check that core functionality works before full rollout C. Dark launch — reverting to a previously known-good version after a bad release D. Dark launch — replacing instances of the old version with the new version incrementally
25. What is A/B testing ? Mid A. mirroring real production requests to a new version without affecting user responses B. routing user segments to different versions to compare behavior or business metrics C. a DORA metric measuring how often an organization successfully releases to production D. deploying a feature to production but keeping it hidden from users while testing in real conditions
26. Which term means: "routing user segments to different versions to compare behavior or business metrics"? Mid A. Canary release B. Change failure rate C. Progressive delivery D. A/B testing
27. Which statement is correct? Mid A. A/B testing — running two identical environments and switching traffic from old (blue) to new (green) at once B. A/B testing — gradually shifting a small percentage of traffic to a new version to limit blast radius C. A/B testing — reverting a release automatically when health checks or SLOs breach thresholds D. A/B testing — routing user segments to different versions to compare behavior or business metrics
28. What is Shadow traffic ? Mid A. replacing instances of the old version with the new version incrementally B. deploying a feature to production but keeping it hidden from users while testing in real conditions C. mirroring real production requests to a new version without affecting user responses D. incrementally releasing changes with automated metric analysis gating each step
29. Which term means: "mirroring real production requests to a new version without affecting user responses"? Mid A. Dark launch B. Shadow traffic C. Blue-green deployment D. Canary release
30. Which statement is correct? Mid A. Shadow traffic — a DORA metric measuring the percentage of deployments causing a production failure B. Shadow traffic — mirroring real production requests to a new version without affecting user responses C. Shadow traffic — deploying a feature to production but keeping it hidden from users while testing in real conditions D. Shadow traffic — replacing instances of the old version with the new version incrementally Showing 30 of 42 Release Strategies questions — the full set, with answers, explanations and an AI tutor on every question, is inside.