Quick Answer
The answer is organized in rows and columns, as this is the defining characteristic of structured data. This format relies on a predefined schema where data types, relationships, and constraints are established before any data is entered, ensuring consistency and enabling efficient querying through relational databases. On the Microsoft Azure Data Fundamentals DP-900 exam, this concept tests your understanding of how structured data differs from semi-structured or unstructured data, often appearing in questions about Azure SQL Database or Synapse Analytics. A common trap is confusing structured data with semi-structured formats like JSON or CSV, which lack a rigid schema. Remember that structured data is always tabular, with each row representing a record and each column enforcing a specific data type, much like a spreadsheet but with enforced rules. For a quick memory tip, think of a library: structured data is like a card catalog with fixed fields for author, title, and genre, while unstructured data is a pile of unsorted books.
This DP-900 practice question tests your understanding of describe core data concepts. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Which THREE are characteristics of structured data? (Choose three.)
Has a predefined schema
Schema is defined before data is stored.
Consists of audio and video files
Why wrong: Audio/video are unstructured.
Uses JSON or XML format
Why wrong: JSON/XML are semi-structured.
Stored in relational databases
Relational databases store structured data.
Organized in rows and columns
Structured data is tabular.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Has a predefined schema
Structured data has a predefined schema, meaning the data types, relationships, and constraints are defined before data is entered. This schema ensures consistency and enables efficient querying, which is why relational databases enforce a fixed schema through table definitions and constraints like primary keys and foreign keys.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Has a predefined schema
Why this is correct
Schema is defined before data is stored.
Related concept
Read the scenario before looking for a memorised answer.
Consists of audio and video files
Why it's wrong here
Audio/video are unstructured.
Uses JSON or XML format
Why it's wrong here
JSON/XML are semi-structured.
Stored in relational databases
Why this is correct
Relational databases store structured data.
Related concept
Read the scenario before looking for a memorised answer.
Organized in rows and columns
Why this is correct
Structured data is tabular.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates confuse semi-structured formats like JSON and XML with structured data, but structured data requires a rigid schema enforced by the database, not just a self-describing format.
Detailed technical explanation
Structured data relies on a fixed schema defined using Data Definition Language (DDL) in SQL, such as CREATE TABLE statements with explicit column types (e.g., INT, VARCHAR). This schema is enforced at write time, meaning every row must conform to the defined structure, which contrasts with semi-structured formats like JSON where schema validation is often optional or applied at read time. In real-world scenarios, structured data is stored in relational databases like Azure SQL Database or SQL Server, enabling ACID transactions and complex JOIN operations.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
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FAQ
Describe core data concepts — This question tests Describe core data concepts — Read the scenario before looking for a memorised answer..
The correct answer is: Has a predefined schema — Structured data has a predefined schema, meaning the data types, relationships, and constraints are defined before data is entered. This schema ensures consistency and enables efficient querying, which is why relational databases enforce a fixed schema through table definitions and constraints like primary keys and foreign keys.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Which TWO of the following are characteristics of structured data? (Choose two.)
mediumWhy B: Structured data is organized in a tabular format with rows and columns, which is the defining characteristic of relational databases like SQL Server or Azure SQL Database. This structure enforces a fixed schema, meaning the data types and relationships are defined before data is entered, ensuring consistency and enabling efficient querying via SQL.
Last reviewed: Jun 24, 2026
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