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ISTQB-CTFL Exam - Topic 4 Question 55 Discussion

Which of the following statements correctly describes error guessing?
A) Error guessing is a testing technique that uses the experience and knowledge of testers to create test cases that may reveal suspected defects.
B) Error guessing is a testing technique in which test cases are created to exercise the items in a checklist.
C) Error guessing is a testing technique in which the testers dynamically create test cases based on their knowledge, exploration of the test item and the results of previous tests.
D) Error guessing is a testing technique in which the tester creates test cases based on the analysis of the specified behavior of the test object without knowing its internal structure.

ISTQB-CTFL Exam - Topic 4 Question 55 Discussion

Actual exam question for ISTQB's ISTQB-CTFL exam
Question #: 55
Topic #: 4
[All ISTQB-CTFL Questions]

Which of the following statements correctly describes error guessing?

Show Suggested Answer Hide Answer
Suggested Answer: A

by Delbert at Mar 03, 2026, 11:59 AM

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Winfred
9 hours ago
I prefer C. It emphasizes dynamic test case creation.
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Goldie
6 days ago
I think A is correct. It’s all about using experience.
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Lorean
11 days ago
I always thought it was just about checking off a list!
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Ozell
16 days ago
Wait, so error guessing isn't just random guessing?
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Solange
2 months ago
D sounds a bit off to me.
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Robt
2 months ago
I think C describes it best.
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Eura
2 months ago
A is definitely correct!
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Yuki
3 months ago
I always thought it was just about checking off a list!
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Shaunna
3 months ago
Wait, so error guessing isn't just random guessing?
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Krissy
3 months ago
D sounds a bit off to me.
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Lelia
3 months ago
I think C describes it best.
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Marci
3 months ago
A is definitely correct!
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Haydee
3 months ago
I feel like D could be a contender too, since it talks about analyzing behavior without knowing the internal structure, but I still think A is the most straightforward.
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Sheron
4 months ago
I’m a bit confused. I thought error guessing was more about intuition rather than following a checklist, so I’m not sure about B.
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Peggy
4 months ago
I remember practicing a question similar to this, and I think C sounds right because it mentions dynamically creating test cases based on knowledge and previous results.
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Carin
4 months ago
I think error guessing is about using our experience to find defects, so I’m leaning towards A. But I’m not completely sure.
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