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iSQI Exam CTFL_Syll_4.0 Topic 5 Question 19 Discussion

Actual exam question for iSQI's CTFL_Syll_4.0 exam
Question #: 19
Topic #: 5
[All CTFL_Syll_4.0 Questions]

A calculator software is used to calculate the result for 5+6.

The user noticed that the result given is 6.

This is an example of;

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Suggested Answer: D

According to the ISTQB Glossary of Testing Terms, Version 4.0, 2018, page 18, a failure is ''an event in which a component or system does not perform a required function within specified limits''. In this case, the calculator software does not perform the required function of calculating the correct result for 5+6 within the specified limits of accuracy and precision. Therefore, this is an example of a failure.

The other options are incorrect because:

A mistake is ''a human action that produces an incorrect result'' (page 25). A mistake is not an event, but an action, and it may or may not lead to a failure. For example, a mistake could be a typo in the code, a wrong assumption in the design, or a misunderstanding of the requirement.

A fault is ''a defect in a component or system that can cause the component or system to fail to perform its required function'' (page 16). A fault is not an event, but a defect, and it may or may not cause a failure. For example, a fault could be a logical error in the code, a missing specification in the design, or a contradiction in the requirement.

An error is ''the difference between a computed, observed, or measured value or condition and the true, specified, or theoretically correct value or condition'' (page 15). An error is not an event, but a difference, and it may or may not result in a failure. For example, an error could be a rounding error in the calculation, a measurement error in the observation, or a deviation error in the condition.

Reference= ISTQB Glossary of Testing Terms, Version 4.0, 2018, pages 15-18, 25; ISTQB CTFL 4.0 - Sample Exam - Answers, Version 1.1, 2023, Question 96, page 34.


Contribute your Thoughts:

Barrett
18 days ago
I believe it's a fault because the software is not functioning properly.
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Stephaine
21 days ago
Oh, come on! Even a monkey could do better than that calculator. It's clearly a 'mistake' if you ask me.
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Gladis
21 days ago
I agree with Ty, it's an error because the calculator software is not giving the correct result.
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Junita
22 days ago
Well, that's certainly an 'error' in my book. No need to overthink it, folks.
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Rosamond
4 days ago
C) Error
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Vallie
10 days ago
A) Mistake
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Thomasena
26 days ago
Seriously, a calculator giving the wrong result? What kind of sorcery is this?
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Ty
1 months ago
I think it's an error.
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Denae
2 months ago
That's definitely a mistake.
upvoted 0 times
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