Question 27

Question

Which of the following are valid justifications for developers testing their own code during unit
testing?
(i) Their lack of independence is mitigated by independent testing during system and acceptance
testing.
(ii) A person with a good understanding of the code can find more defects more quickly using white-
box techniques.
(iii) Developers have a better understanding of the requirements than testers.
(iv) Testers write unnecessary incident reports because they find minor differences between the way
in which the system behaves and the way in which it is specified to work.

Accepted Answer

(i) and (ii)

Hannah · Answer

I don’t think B fits here, C makes more sense since devs could have a better grasp of code and requirements (at least in theory). Option B feels like a trap.

Jack · Answer

A

Piya R. · Answer

B tbh, since (iv) looks valid at first. Testers sometimes flag stuff that feels minor, so maybe devs catching those would help? Not entirely sure but that's my pick. Let me know if I'm missing something obvious.

Jamie J. · Answer

Probably A, since only (i) and (ii) really hold up. The other statements are basically edge cases or not strong justifications.

FriendlyAuditor8155 · Answer

A only (i) and (ii) make solid sense for this. The other reasons feel shaky or just not justified. Disagree?

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

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