ISTQB Exam ISTQB-CTFL Topic 5 Question 44 Discussion

Actual exam question for ISTQB's ISTQB-CTFL exam

Question #: 44
Topic #: 5

Which of the following statements about error guessing is true?

AError guessing is a system that adopts artificial intelligence to predict whether software components are likely to contain defects or not

BExperienced testers, when applying error guessing, rely on the use of a high-level list of what needs to be tested as a guide to find defects

CError guessing refers to the ability of a system or component to continue normal operation despite the presence of erroneous inputs

DExperienced testers, when applying error guessing technique, can anticipate where errors, defects and failures have occurred and target their tests at those issues

Show Suggested Answer

Suggested Answer: D

This answer is correct because error guessing is a test design technique where the experience and intuition of the tester are used to anticipate where errors, defects and failures have occurred or are likely to occur, and to design test cases to expose them. Error guessing can be based on factors such as the complexity of the system or component, the known or suspected weaknesses of the system or component, the previous history of defects, or the common types of errors in the domain or technology. Error guessing can be used as a complementary technique to other more systematic or formal techniques, or when there is insufficient information or time to apply them. Reference: ISTQB Glossary of Testing Terms v4.0, ISTQB Foundation Level Syllabus v4.0, Section 2.3.2.5

by Pansy at Apr 29, 2025, 07:18 PM

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Bev

1 months ago

Yeah, D makes sense too, testers can target their tests at potential issues.

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2 months ago

Option A sounds a bit like machine learning, but that's not what error guessing is about. I'd go with D - it best captures the essence of this testing technique.

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Roselle

1 months ago

I see your point, but I still think option D is the best fit for what error guessing is all about.

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Phil

1 months ago

I think option B is also a good choice, as experienced testers do rely on a high-level list when using error guessing.

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Johnna

2 months ago

I agree, option D seems to be the most accurate description of error guessing.

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2 months ago

Option D seems to be the correct answer here. Experienced testers use their knowledge and intuition to anticipate where errors might occur and focus their testing efforts accordingly.

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Rosendo

30 days ago

It's important for testers to be able to anticipate where defects might occur in order to focus their testing efforts effectively.

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Margery

1 months ago

Yes, error guessing is all about using your intuition and knowledge to target testing where errors are likely to be found.

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Argelia

2 months ago

I agree, option D is the correct answer. Experienced testers can anticipate where errors might occur.

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