Coverage interview questions

12 real Coverage questions from the Testing bank, as asked in Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd — free to start.

1. What is Line coverage?

Junior
  1. A.the principle that executing code proves nothing about whether its correctness was actually asserted
  2. B.the percentage of source statements that were executed at least once during a run
  3. C.the percentage of decision outcomes, such as both the true and false sides of an if, that were taken
  4. D.a technique that deliberately injects small faults into code and checks whether the suite catches them
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3. Which statement is correct?

Junior
  1. A.Line coverage — a technique that deliberately injects small faults into code and checks whether the suite catches them
  2. B.Line coverage — the principle that executing code proves nothing about whether its correctness was actually asserted
  3. C.Line coverage — the percentage of decision outcomes, such as both the true and false sides of an if, that were taken
  4. D.Line coverage — the percentage of source statements that were executed at least once during a run
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4. What is Branch coverage?

Mid
  1. A.the principle that executing code proves nothing about whether its correctness was actually asserted
  2. B.a technique that deliberately injects small faults into code and checks whether the suite catches them
  3. C.the percentage of decision outcomes, such as both the true and false sides of an if, that were taken
  4. D.the percentage of source statements that were executed at least once during a run
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6. Which statement is correct?

Mid
  1. A.Branch coverage — a technique that deliberately injects small faults into code and checks whether the suite catches them
  2. B.Branch coverage — the percentage of source statements that were executed at least once during a run
  3. C.Branch coverage — the percentage of decision outcomes, such as both the true and false sides of an if, that were taken
  4. D.Branch coverage — the principle that executing code proves nothing about whether its correctness was actually asserted
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7. What is Coverage is not quality?

Mid
  1. A.a technique that deliberately injects small faults into code and checks whether the suite catches them
  2. B.the percentage of source statements that were executed at least once during a run
  3. C.the percentage of decision outcomes, such as both the true and false sides of an if, that were taken
  4. D.the principle that executing code proves nothing about whether its correctness was actually asserted
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9. Which statement is correct?

Mid
  1. A.Coverage is not quality — a technique that deliberately injects small faults into code and checks whether the suite catches them
  2. B.Coverage is not quality — the percentage of decision outcomes, such as both the true and false sides of an if, that were taken
  3. C.Coverage is not quality — the principle that executing code proves nothing about whether its correctness was actually asserted
  4. D.Coverage is not quality — the percentage of source statements that were executed at least once during a run
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10. What is Mutation testing?

Senior
  1. A.the principle that executing code proves nothing about whether its correctness was actually asserted
  2. B.a technique that deliberately injects small faults into code and checks whether the suite catches them
  3. C.the percentage of source statements that were executed at least once during a run
  4. D.the percentage of decision outcomes, such as both the true and false sides of an if, that were taken
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11. Which term means: "a technique that deliberately injects small faults into code and checks whether the suite catches them"?

Senior
  1. A.Branch coverage
  2. B.Line coverage
  3. C.Mutation testing
  4. D.Coverage is not quality
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12. Which statement is correct?

Senior
  1. A.Mutation testing — the principle that executing code proves nothing about whether its correctness was actually asserted
  2. B.Mutation testing — the percentage of decision outcomes, such as both the true and false sides of an if, that were taken
  3. C.Mutation testing — the percentage of source statements that were executed at least once during a run
  4. D.Mutation testing — a technique that deliberately injects small faults into code and checks whether the suite catches them
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