Question 31

Question

Which of the following could be a reason for a failure?
1) Testing fault
2) Software fault
3) Design fault
4) Environment Fault
5) Documentation Fault

Accepted Answer

All of them are valid reasons for failure

Piya Y. · Answer

C/D? I keep seeing practice questions where people miss documentation faults as a source of failure, but ISTQB includes them. Option D is right, not just code or env faults. If I'm off let me know!

Owen D. · Answer

Option D but I'm kind of confused-doc faults too? I thought only code or env stuff caused failures. Someone confirm?

Luke U. · Answer

Yeah, all five can be legit reasons for failures so D fits. Even testing or bad docs can cause actual issues, not just code or design. That's what the ISTQB v4 syllabus says if I remember right. Let me know if someone thinks otherwise, but I feel pretty solid on this one.

Cameron · Answer

Answer: Picked D since in a mock exam they listed all of these as valid sources of failure, not just software or design faults. Even a doc error can cause real issues in practice. Pretty sure that's what ISTQB wants here, but open to corrections.

ISTQB CTFL-Foundation v4.0 Real Exam Questions [October 2026 Update] Quiz

Which of the following could be a reason for a failure? 1) Testing fault 2) Software fault 3) Design fault 4) Environment Fault 5) Documentation Fault

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