ISTQB Exam ATTA Topic 2 Question 113 Discussion

Actual exam question for ISTQB's ATTA exam

Question #: 113
Topic #: 2

[All ATTA Questions]

Part 1 "Test Techniques various"

If we say that a set of tests has achieved 100% structural decision coverage on a particular module in a program, what does that mean? 1 credit [K2]

AThat all bugs present in that module were necessarily revealed by those tests.

BThat every control flow branch had been executed at least once by those tests.

CThat every dataflow in that module was exercised at least once by those tests.

DThat every path through that module was exercised at least once by those tests.

Show Suggested Answer

Suggested Answer: B

by Erick at Jul 12, 2025, 11:39 PM

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Glen

4 days ago

Nah, 100% decision coverage doesn't guarantee that every path through the module was tested. That would require 100% path coverage, which is way more demanding. I'm going with B.

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Deeanna

5 days ago

I'm not so sure. Wouldn't 100% decision coverage also mean that every dataflow was exercised at least once? I'm torn between B and C.

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Lajuana

6 days ago

Hmm, I think the answer is B. If we achieved 100% structural decision coverage, that means every control flow branch was executed at least once. Seems straightforward enough.

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Leonida

7 days ago

I think the answer is D.

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