This DP-203 practice question tests your understanding of develop data processing. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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.
Refer to the exhibit. You have an Azure Data Factory pipeline that performs an incremental load from an Azure SQL Database source to a target Azure SQL Database. The pipeline uses a watermark column approach. After running the pipeline, you notice that the target table is empty. What is the most likely cause of this issue?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
The dependency condition should be 'Completed' instead of 'Succeeded'.
Why wrong: 'Succeeded' is the correct condition for a successful lookup.
B
The WatermarkQuery activity failed, causing the CopyData activity to be skipped.
Why wrong: The dependency condition is 'Succeeded', so if WatermarkQuery succeeded, CopyData runs.
C
The watermark query returns the maximum LastModified value, but the copy query uses the same value to filter, resulting in zero rows.
The copy query filters for rows where LastModified > NewWatermark, but NewWatermark is the maximum, so no rows satisfy the condition. The previous watermark should be stored and used.
D
The CopyData activity runs before the WatermarkQuery activity completes.
Why wrong: The dependsOn ensures CopyData runs after WatermarkQuery succeeds.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The watermark query returns the maximum LastModified value, but the copy query uses the same value to filter, resulting in zero rows.
Option D is correct because the query uses the output of WatermarkQuery (which returns the maximum LastModified) as the filter condition, but it should filter for rows where LastModified is greater than the previous watermark, not the current maximum. This results in no rows being selected because no rows have LastModified > maximum. Option A is wrong because the pipeline succeeded. Option B is wrong because the watermark query executes before the copy activity. Option C is wrong because the dependency condition is correct.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The dependency condition should be 'Completed' instead of 'Succeeded'.
Why it's wrong here
'Succeeded' is the correct condition for a successful lookup.
✗
The WatermarkQuery activity failed, causing the CopyData activity to be skipped.
Why it's wrong here
The dependency condition is 'Succeeded', so if WatermarkQuery succeeded, CopyData runs.
✓
The watermark query returns the maximum LastModified value, but the copy query uses the same value to filter, resulting in zero rows.
Why this is correct
The copy query filters for rows where LastModified > NewWatermark, but NewWatermark is the maximum, so no rows satisfy the condition. The previous watermark should be stored and used.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The CopyData activity runs before the WatermarkQuery activity completes.
Why it's wrong here
The dependsOn ensures CopyData runs after WatermarkQuery succeeds.
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
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-203 question in full detail.
Identify which DP-203 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Develop data processing — This question tests Develop data processing — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The watermark query returns the maximum LastModified value, but the copy query uses the same value to filter, resulting in zero rows. — Option D is correct because the query uses the output of WatermarkQuery (which returns the maximum LastModified) as the filter condition, but it should filter for rows where LastModified is greater than the previous watermark, not the current maximum. This results in no rows being selected because no rows have LastModified > maximum. Option A is wrong because the pipeline succeeded. Option B is wrong because the watermark query executes before the copy activity. Option C is wrong because the dependency condition is correct.
What should I do if I get this DP-203 question wrong?
Identify which DP-203 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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