Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A retail company stores three types of customer data: (1) a table with columns for CustomerID, Name, and Email; (2) product reviews as JSON documents with varying fields such as rating and comment; (3) product demonstration videos stored in MP4 format. Which of the following correctly classifies these data types in order from first to third?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Structured, unstructured, semi-structured
This order is incorrect because JSON documents are semi-structured, not unstructured, and videos are unstructured, not semi-structured.
B
Distractor review
Semi-structured, structured, unstructured
This order is incorrect because the table is structured, not semi-structured, and JSON documents are semi-structured, not structured.
C
Best answer
Structured, semi-structured, unstructured
Correct. The table is structured (fixed schema), JSON documents are semi-structured (flexible schema), and videos are unstructured (no schema).
D
Distractor review
Unstructured, semi-structured, structured
This order is incorrect because the table is the most organized (structured), not unstructured.
Common exam trap
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.
Technical deep dive
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.
Related practice questions
Related DP-900 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
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Question 2
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Question 3
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Question 4
A data engineer is designing a data lake architecture in Azure. They plan to first ingest raw data from various sources into a landing zone in Azure Data Lake Storage Gen2. Then they will clean, validate, and deduplicate that data in a second zone. Finally, they will create aggregated, business-ready datasets in a third zone for analysts. This layered approach is known as which architecture?
Question 5
A data engineer needs to transform large datasets stored in Azure Data Lake Storage Gen2 using Python and Apache Spark. They want a serverless compute option that automatically scales and requires no cluster management. Which Azure service should they use?
Question 6
A company collects customer feedback forms. Each form contains always-present fields like CustomerID and SubmissionDate, but also a free-text Comments field and optional fields like Rating or ProductCategory that vary between forms. How should this data be classified?
FAQ
Questions learners often ask
What does this DP-900 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Structured, semi-structured, unstructured — Data can be categorized as structured, semi-structured, or unstructured. Structured data has a fixed schema and is stored in relational tables with rows and columns. Semi-structured data has some organizational properties (like tags or key-value pairs) but does not require a rigid schema; JSON documents are a common example. Unstructured data has no predefined format or schema, such as video files, images, or plain text. In this scenario, the table with fixed columns is structured, JSON documents are semi-structured, and MP4 videos are unstructured.
What should I do if I get this DP-900 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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