DP-900 Describe an analytics workload on Azure Practice Question
This DP-900 practice question tests your understanding of describe an analytics workload on azure. 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.
Exhibit
Refer to the exhibit.
{
"type": "Microsoft.Storage/storageAccounts",
"apiVersion": "2023-01-01",
"properties": {
"isHnsEnabled": true,
"accessTier": "Hot",
"supportsHttpsTrafficOnly": true
}
}
Refer to the exhibit. A data engineer is reviewing an ARM template for a storage account. What does the property 'isHnsEnabled' set to true indicate?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The storage account supports Azure Data Lake Storage Gen2
The 'isHnsEnabled' property, when set to true, enables the Hierarchical Namespace (HNS) on the storage account. HNS is the core feature that differentiates Azure Data Lake Storage Gen2 from a standard blob storage account, allowing for a true file system hierarchy with POSIX-like access control lists (ACLs). This enables the storage account to support Data Lake Storage Gen2 workloads.
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.
✗
Blob soft delete is enabled
Why it's wrong here
Soft delete is a different property.
✓
The storage account supports Azure Data Lake Storage Gen2
Why this is correct
HNS enables Data Lake Storage Gen2.
Related concept
Read the scenario before looking for a memorised answer.
✗
Versioning is enabled for blobs
Why it's wrong here
Versioning is a separate setting.
✗
Geo-redundant storage is configured
Why it's wrong here
Replication is set separately.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse 'isHnsEnabled' with other blob-level features like soft delete or versioning, because all three are often discussed in the context of data protection and management, but only HNS is specific to Data Lake Storage Gen2.
Detailed technical explanation
How to think about this question
Under the hood, enabling HNS restructures the blob storage namespace from a flat key-value store to a directory-based hierarchy, which is essential for analytics engines like Apache Spark and Hadoop to perform efficient rename and directory operations. A subtle behavior is that once HNS is enabled, it cannot be disabled, and certain features like Azure NetApp Files or NFS v3 are only supported when HNS is active. In a real-world scenario, a data lake migration from on-premises HDFS to Azure would require 'isHnsEnabled' set to true to maintain POSIX permissions and directory semantics.
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 DP-900 question in full detail.
Describe an analytics workload on Azure — This question tests Describe an analytics workload on Azure — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The storage account supports Azure Data Lake Storage Gen2 — The 'isHnsEnabled' property, when set to true, enables the Hierarchical Namespace (HNS) on the storage account. HNS is the core feature that differentiates Azure Data Lake Storage Gen2 from a standard blob storage account, allowing for a true file system hierarchy with POSIX-like access control lists (ACLs). This enables the storage account to support Data Lake Storage Gen2 workloads.
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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