DP-900 Describe core data concepts Practice Question
This DP-900 practice question tests your understanding of describe core data concepts. 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.
A company stores customer names and addresses in a fixed-format file where each record has the same fields in the same order. This type of data is best described as:
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Structured data
A fixed-format file where each record has the same fields in the same order is a classic example of structured data. Structured data conforms to a rigid schema, such as a table with defined columns and data types, making it easily searchable and processable by relational database systems like Azure SQL Database. The consistent field order and fixed format allow for direct parsing without interpretation.
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.
✓
Structured data
Why this is correct
Structured data follows a fixed schema with defined fields, matching the scenario's fixed-format file.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Semi-structured data
Why it's wrong here
Semi-structured data has flexibility in schema and may use tags or markers; the fixed-format file does not exhibit this flexibility.
✗
Unstructured data
Why it's wrong here
Unstructured data has no predefined schema; the file in the scenario has a fixed schema.
✗
Streaming data
Why it's wrong here
Streaming data refers to data that is generated continuously, not to the structure of the data itself.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse 'fixed-format' with 'semi-structured' because both can be stored in files, but the key distinction is that fixed-format enforces a rigid schema with identical fields per record, whereas semi-structured allows schema flexibility.
Trap categories for this question
Scenario analysis trap
Unstructured data has no predefined schema; the file in the scenario has a fixed schema.
Detailed technical explanation
How to think about this question
Under the hood, fixed-format files are often parsed using positional offsets or fixed-length field definitions, which is highly efficient for bulk loading into databases like Azure Synapse Analytics using PolyBase or COPY INTO commands. A subtle behavior is that even a single extra character or misalignment in the fixed width can cause the entire record to be misread, leading to data corruption. In real-world scenarios, legacy mainframe systems (e.g., IBM z/OS) commonly use fixed-format files (e.g., VSAM or sequential datasets) where schema changes require recompilation of COBOL programs.
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-900 question in full detail.
Describe core data concepts — This question tests Describe core data concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Structured data — A fixed-format file where each record has the same fields in the same order is a classic example of structured data. Structured data conforms to a rigid schema, such as a table with defined columns and data types, making it easily searchable and processable by relational database systems like Azure SQL Database. The consistent field order and fixed format allow for direct parsing without interpretation.
What should I do if I get this DP-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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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