CI/CD

Database Changes and Backward Compatibility

Deliver database changes as versioned migrations that preserve backward compatibility across application versions and delay destructive cleanup until evidence permits it.

Intermediate14 min read

CI/CD lessonDelivery and reliability foundationsProve

TIMED ASSESSMENT

Database Changes and Backward Compatibility

Questions and answer choices are randomized for every attempt. Everything needed to answer is shown on screen; no paper, calculator, terminal, server, or external test is required. Each answer is marked Correct or Incorrect, then locked until the final review.

15 questions20 min timer12/15 to pass

Explanations are hidden during the test. A full review is available only after submission.