The answer is to use the SQL API built into Azure Cosmos DB. This is correct because Cosmos DB for NoSQL provides a native SQL API that translates standard SQL-like syntax into queries against its internal engine, allowing you to SELECT, filter, and project data directly from JSON documents stored in containers without needing any additional services or connectors. On the Microsoft Azure Data Fundamentals DP-900 exam, this concept tests your understanding of how Cosmos DB’s query model works—specifically that the SQL API is the default, built-in feature for querying NoSQL data, not an external tool like Azure Synapse or a separate SDK. A common trap is confusing this with the Table API or MongoDB API, which use different syntax; remember that the SQL API is the only one that uses familiar SQL-like keywords. Memory tip: Think “SQL API = SQL-like for NoSQL JSON,” and you’ll always pick the right feature.
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.
You need to query data stored in Azure Cosmos DB for NoSQL using SQL-like syntax. Which feature should you use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use the SQL API built into Cosmos DB
Azure Cosmos DB for NoSQL provides a native SQL API that allows you to query JSON documents using SQL-like syntax. This API translates standard SQL queries into Cosmos DB's internal query engine, enabling you to SELECT, filter, and project data directly from containers without any additional services or connectors.
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.
✗
Use Azure SQL Database elastic query
Why it's wrong here
Elastic query is for querying across Azure SQL databases.
✗
Use Power BI DirectQuery
Why it's wrong here
Power BI is a visualization tool, not a direct query interface for Cosmos DB.
✓
Use the SQL API built into Cosmos DB
Why this is correct
Cosmos DB's SQL API allows querying JSON documents with SQL-like syntax.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Azure Synapse Analytics Serverless SQL pool
Why it's wrong here
Synapse can query Cosmos DB but is not the direct query feature.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse Azure Synapse Analytics Serverless SQL pool (which can also query Cosmos DB) with the native Cosmos DB SQL API, but the question specifically asks for the feature built into Cosmos DB for NoSQL, not an external query service.
Detailed technical explanation
How to think about this question
The Cosmos DB SQL API uses a JSON-based query language that supports SELECT, WHERE, JOIN, and ORDER BY clauses, with automatic indexing of all properties by default. Under the hood, queries are executed against a partitioned index that allows for low-latency reads at any scale, and the query engine can push down filters to the index for efficient execution. A real-world scenario is an e-commerce application that needs to retrieve product details by category using a simple SQL query like 'SELECT * FROM Products p WHERE p.category = "electronics"' directly from the Cosmos DB SDK.
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: Use the SQL API built into Cosmos DB — Azure Cosmos DB for NoSQL provides a native SQL API that allows you to query JSON documents using SQL-like syntax. This API translates standard SQL queries into Cosmos DB's internal query engine, enabling you to SELECT, filter, and project data directly from containers without any additional services or connectors.
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.
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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