iSQI CT-AI Exam - Topic 10 Question 37 Discussion

Actual exam question for iSQI's CT-AI exam

Question #: 37
Topic #: 10

[All CT-AI Questions]

Which of the following is a dataset issue that can be resolved using pre-processing?

AInsufficient data

BInvalid data

CWanted outliers

DNumbers stored as strings

Show Suggested Answer

Suggested Answer: D

The syllabus describes that data pre-processing includes cleaning (e.g., fixing or removing invalid data) and transforming data (e.g., changing data types such as numbers stored as strings).

'Transformation: The format of the given data is changed... converting categorical data into numerical data, changing image formats...'

(Reference: ISTQB CT-AI Syllabus v1.0, Section 4.1.1, Page 34 of 99)

by Queen at May 03, 2026, 01:38 AM

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Dorinda

19 days ago

I'm a bit confused about wanted outliers. Can we really resolve that with pre-processing?

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Xuan

25 days ago

I remember a practice question where we had to deal with numbers stored as strings. That one seems clear to me.

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Shawnee

30 days ago

I think invalid data is definitely something we can fix with pre-processing, but I'm not sure about the others.

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