AZ-900 Describe Azure architecture and services Practice Question
This AZ-900 practice question tests your understanding of describe azure architecture and services. 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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Structured NoSQL data in a key-attribute entity model
Azure Table Storage is a NoSQL key-attribute store that stores structured, schema-less data. Each entity is a set of properties (attributes) with a partition key and row key, enabling fast access to semi-structured data like user profiles or device metadata.
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.
✗
Unstructured binary data like images and videos
Why it's wrong here
Unstructured binary data is stored in Azure Blob Storage, not Table Storage.
✓
Structured NoSQL data in a key-attribute entity model
Why this is correct
Table Storage is a NoSQL key-value store for structured data with entities having a partition key, row key, and properties.
Related concept
Read the scenario before looking for a memorised answer.
✗
Relational data with complex joins and foreign keys
Why it's wrong here
Complex relational data with joins is stored in Azure SQL Database; Table Storage is NoSQL.
✗
Files shared via SMB protocol across Windows machines
Why it's wrong here
SMB file shares are provided by Azure Files; Table Storage stores structured entity data.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse Azure Table Storage with Blob Storage (for unstructured data) or Azure SQL Database (for relational data), overlooking that Table Storage is specifically designed for structured NoSQL key-attribute entities.
Detailed technical explanation
How to think about this question
Azure Table Storage uses a partition key and row key to form a composite primary key, enabling efficient point queries and range scans. Under the hood, it is a massively scalable NoSQL store that automatically partitions data across nodes based on the partition key, allowing up to 20,000 IOPS per partition. A real-world scenario is storing IoT sensor readings where each device's ID serves as the partition key and a timestamp as the row key, enabling fast retrieval of time-series data.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-900 question in full detail.
Describe Azure architecture and services — This question tests Describe Azure architecture and services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Structured NoSQL data in a key-attribute entity model — Azure Table Storage is a NoSQL key-attribute store that stores structured, schema-less data. Each entity is a set of properties (attributes) with a partition key and row key, enabling fast access to semi-structured data like user profiles or device metadata.
What should I do if I get this AZ-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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