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BCS CTFL4 Exam - Topic 1 Question 38 Discussion

Actual exam question for BCS's CTFL4 exam
Question #: 38
Topic #: 1
[All CTFL4 Questions]

Which of the following statements describes regression testing?

I . Retesting of a fixed defect

II . Testing of an already tested program

III . Testing of new functionality in a program

IV. Regression testing applies only to functional testing

V Tests that do not nave to be repeatable, because They are only used once

Show Suggested Answer Hide Answer
Suggested Answer: C

Regression testing is the re-running of functional and non-functional tests to ensure that previously developed and tested software still performs as expected after a change1It does not involve retesting of a fixed defect, testing of new functionality, or applying only to functional testing.Tests that are used for regression testing should be repeatable, because they are used to verify the stability of the software after each change2Reference= ISTQB Certified Tester Foundation Level (CTFL) v4.0 Syllabus, Chapter 4, Section 4.2.2, Page 291; ISTQB Glossary of Testing Terms v4.0, Page 292


by Adela at Mar 30, 2026, 04:00 PM

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Stefany
3 days ago
I agree, it’s mainly for testing already tested programs too!
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Frederic
8 days ago
Regression testing is all about retesting fixed defects.
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Annalee
29 days ago
I feel like I’ve seen questions that emphasize regression testing doesn’t just focus on fixed defects, but also on ensuring new features don’t break existing functionality.
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Lavonne
1 month ago
I’m a bit confused about option IV; I thought regression testing could apply to both functional and non-functional testing, but maybe I’m mixing it up with something else.
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Paris
1 month ago
I remember practicing a question where regression testing was described as testing an already tested program, so I feel like option II might be correct.
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Major
1 month ago
I think regression testing is mainly about retesting fixed defects, but I'm not sure if it also includes testing previously tested programs.
upvoted 0 times
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