ASTQB Exam CTFL Topic 3 Question 89 Discussion

Actual exam question for ASTQB's CTFL exam

Question #: 89
Topic #: 3

[All CTFL Questions]

Which of the following statements BEST describes one of the seven key principles of software testing?

AAutomated tests are better than manual tests for avoiding the Exhaustive Testing.

BExhaustive testing is, with sufficient effort and tool support, feasible for all software.

CIt is normally impossible to test all input / output combinations for a software system.

DThe purpose of testing is to demonstrate the absence of defects. The purpose of testing is to demonstrate the absence of defects.

Show Suggested Answer

Suggested Answer: C

by Florinda at Jul 31, 2025, 01:51 AM

Limited Time Offer

25%

Off

Get Premium CTFL Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Stevie

1 days ago

This question seems pretty straightforward. I think the answer is C - it's normally impossible to test all input/output combinations for a software system.

upvoted 0 times

...

Tambra

9 days ago

I disagree, I believe the answer is D.

upvoted 0 times

...

Billy

15 days ago

But C makes sense because it's normally impossible to test all input/output combinations.

upvoted 0 times

...

France

16 days ago

Option A sounds tempting, but I think C is the way to go. Automated tests are great, but they can't catch everything. Manual testing is still essential.

upvoted 0 times

...

Sabrina

2 months ago

Haha, Option B is a joke! Exhaustive testing is like trying to find a needle in a haystack the size of the Eiffel Tower. Good luck with that!

upvoted 0 times

...

Rolland

2 months ago

I'm going with Option D. The purpose of testing is to demonstrate the absence of defects, not to find them. Clearly, the best software is one with zero defects, right?

upvoted 0 times

...

Janet

2 months ago

Option C is the best answer. It's simply not possible to test every possible input and output combination for a software system. That's just basic software testing knowledge.

upvoted 0 times