- A
Conditional Split
Why wrong: Conditional Split routes rows based on conditions, not type conversion.
- B
Derived Column
Derived Column allows type conversion via expressions.
- C
Assert
Why wrong: Assert transformation validates rows but does not change data types.
- D
Sort
Why wrong: Sort does not change data types.
- E
Select
Select can cast columns to different types.
Question 378 of 851
Transformations for Data Type Conversion in Mapping Data Flows
This DP-203 practice question tests your understanding of develop data processing. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. A key principle to apply: derived Column. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
You are designing a data processing solution in Azure Data Factory that uses mapping data flows. You need to perform type conversions on incoming data. Which three transformations can be used to change data types? (Choose three.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Derived Column
Options B and E are correct. Derived Column can change data types through expressions, and Select can cast types during column projection. Option C (Assert) is incorrect because it only validates and routes rows based on conditions; it does not convert data types. Option A (Conditional Split) and Option D (Sort) are also incorrect.
Key principle: Derived Column
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Conditional Split
Why it's wrong here
Conditional Split routes rows based on conditions, not type conversion.
- ✓
Derived Column
Why this is correct
Derived Column allows type conversion via expressions.
Related concept
Derived Column
- ✗
Assert
Why it's wrong here
Assert transformation validates rows but does not change data types.
- ✗
Sort
Why it's wrong here
Sort does not change data types.
- ✓
Select
Why this is correct
Select can cast columns to different types.
Related concept
Derived Column
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Derived Column
- Select Transformation
- Assert Transformation
- Data Type Conversion
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Derived Column
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Derived Column Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Review derived Column, then practise related DP-203 questions on the same topic to reinforce the concept.
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Develop data processing — study guide chapter
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Develop data processing practice questions
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FAQ
Questions learners often ask
What does this DP-203 question test?
Develop data processing — This question tests Develop data processing — Derived Column.
What is the correct answer to this question?
The correct answer is: Derived Column — Options B and E are correct. Derived Column can change data types through expressions, and Select can cast types during column projection. Option C (Assert) is incorrect because it only validates and routes rows based on conditions; it does not convert data types. Option A (Conditional Split) and Option D (Sort) are also incorrect.
What should I do if I get this DP-203 question wrong?
Review derived Column, then practise related DP-203 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Derived Column
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Last reviewed: Jun 21, 2026
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