Test Efficiency / Cost Metrics CTEL-ITP-ATP Practice Questions (Page 3)

Questions 11–15

1. 11expert · hard

   A test manager observes that the cost per defect has increased by 20% over the last two releases, while the defect detection percentage (DDP) has remained stable at 85%. The number of test cases executed has also increased by 30%. What is the most likely explanation for this trend?

   • AThe test team is finding more defects overall, so the cost per defect naturally increases.
   • BThe additional test cases are less effective at finding new defects, so the same number of defects is found at a higher cost.
   • CThe DDP is stable, so the cost per defect should also be stable; the increase is due to random variation.
   • DThe increase in test cases has led to more efficient testing, reducing the cost per defect.
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   Which statement best describes the role of test efficiency metrics in process improvement?

   • AThey provide a direct measure of the financial return on testing investment
   • BThey quantify the total cost of quality, including prevention and appraisal costs
   • CThey help identify how well testing activities achieve their objectives relative to the effort expended
   • DThey replace the need for qualitative assessments of the test process
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   Which of the following is an example of a test cost metric?

   • ADefect detection percentage
   • BTest case effectiveness
   • CCost per test case
   • DReview effectiveness
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   What is the primary purpose of test efficiency metrics in assessing a test process?

   • ATo evaluate how well testing resources are converted into desired outcomes
   • BTo compare the test process against industry benchmarks
   • CTo determine the total number of test cases executed in a release
   • DTo measure the amount of money spent on testing activities
   Reveal Solution Discussion Select an answer first
6. 15expert · hard

   A company is considering two testing strategies: Strategy A has a cost per defect of $500 and a DDP of 85%. Strategy B has a cost per defect of $400 and a DDP of 75%. The company estimates that each defect escaping to production costs $2,000. Which strategy is more cost-effective overall?

   • ABoth strategies are equally cost-effective.
   • BStrategy A, because it finds more defects before release.
   • CStrategy B, because it has a lower cost per defect.
   • DCannot determine without knowing the total number of defects.
   Reveal Solution Discussion Select an answer first