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. 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.
Exhibit
Refer to the exhibit. The following is a KQL query run in Azure Data Explorer:
let T = datatable(Id:int, Name:string, Age:int)
[
1, 'Alice', 30,
2, 'Bob', 25,
3, 'Charlie', 35
];
T
| where Age > 25
| project Name, Age
Refer to the exhibit. You run the KQL query in Azure Data Explorer. What is the output?
Refer to the exhibit. The following is a KQL query run in Azure Data Explorer:
let T = datatable(Id:int, Name:string, Age:int)
[
1, 'Alice', 30,
2, 'Bob', 25,
3, 'Charlie', 35
];
T
| where Age > 25
| project Name, Age
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Name: Alice, Age: 30; Name: Charlie, Age: 35
The KQL query uses the `take` operator to return a specified number of rows from the table. Since the query does not include an `order by` clause, the rows returned are non-deterministic but will be the first rows encountered in the data shard. In this case, the query `take 2` returns two rows, which are Alice (Age 30) and Charlie (Age 35), as shown in the exhibit. The `project` operator then selects only the Name and Age columns, so the output is exactly those two rows with those columns.
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.
✓
Name: Alice, Age: 30; Name: Charlie, Age: 35
Why this is correct
Only Alice and Charlie have Age >25.
Related concept
Read the scenario before looking for a memorised answer.
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume `take` returns the first N rows in the order they appear in the table (like a top-N query without ordering), but without an explicit `order by`, the rows are non-deterministic and depend on data shard layout, leading to confusion when the output does not match the expected sequence.
Detailed technical explanation
How to think about this question
The `take` operator in KQL is equivalent to `limit` in SQL and returns a specified number of rows without any guarantee of order unless an `order by` clause is used. In Azure Data Explorer, data is stored in extents (shards), and `take` returns rows from the first extent it scans, which can vary across executions. This behavior is important for debugging or sampling data, but for deterministic results, always pair `take` with `order by`.
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.
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
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.
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: Name: Alice, Age: 30; Name: Charlie, Age: 35 — The KQL query uses the `take` operator to return a specified number of rows from the table. Since the query does not include an `order by` clause, the rows returned are non-deterministic but will be the first rows encountered in the data shard. In this case, the query `take 2` returns two rows, which are Alice (Age 30) and Charlie (Age 35), as shown in the exhibit. The `project` operator then selects only the Name and Age columns, so the output is exactly those two rows with those columns.
What should I do if I get this DP-203 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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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