Free practice · multiple-choice · medium

Practice

Choose useful debugging observations

Which observations help isolate a wrong invoice total? Select all that apply.

Evidence-led debugging

Change code only after the failure and cause are reproducible

  1. ReproduceCapture exact observed behavior
  2. ClassifySyntax, runtime, or logic
  3. IsolateReduce input and inspect state
  4. HypothesisTest one possible cause
  5. FixChange the proven cause only
  6. VerifyRerun and retain regression tests

A focused debugging record connects exact inputs, observed state, one falsifiable hypothesis, a minimal change, and regression evidence.

Choose all that apply