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Describe an analytics workload on Azure →mediumMultiple ChoiceObjective-mapped

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.

```json
{
  "type": "Microsoft.Storage/storageAccounts",
  "apiVersion": "2023-01-01",
  "name": "[parameters('storageAccountName')]",
  "kind": "StorageV2",
  "properties": {
    "isHnsEnabled": true
  }
}
```

You are deploying the above ARM template snippet for a storage account. What is the effect of setting 'isHnsEnabled' to true?

Question 1mediummultiple choice
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Exhibit

Refer to the exhibit.

```json
{
  "type": "Microsoft.Storage/storageAccounts",
  "apiVersion": "2023-01-01",
  "name": "[parameters('storageAccountName')]",
  "kind": "StorageV2",
  "properties": {
    "isHnsEnabled": true
  }
}
```

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Enables Azure Data Lake Storage Gen2.

Setting 'isHnsEnabled' to true enables the Hierarchical Namespace (HNS) feature on the Azure Storage account, which is the core requirement for Azure Data Lake Storage Gen2. This allows the storage account to support a file system-like directory structure with POSIX-compliant access control lists, enabling analytics workloads to use both blob and file system semantics.

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.

  • ✓

    Enables Azure Data Lake Storage Gen2.

    Why this is correct

    HNS is the feature that enables ADLS Gen2.

    Related concept

    Read the scenario before looking for a memorised answer.

  • ✗

    Enables Azure Blob Storage lifecycle management.

    Why it's wrong here

    Lifecycle management is independent of HNS.

  • ✗

    Enables geo-redundant storage (GRS).

    Why it's wrong here

    GRS is set in the sku, not HNS.

  • ✗

    Enables Azure Files share.

    Why it's wrong here

    Azure Files is a different kind.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates confuse 'isHnsEnabled' with enabling a general 'data lake' feature, but it specifically enables the Hierarchical Namespace, which is the fundamental difference between Azure Blob Storage and Azure Data Lake Storage Gen2.

Detailed technical explanation

How to think about this question

Under the hood, 'isHnsEnabled' can only be set at storage account creation time and cannot be changed later. When enabled, the storage account uses a hierarchical namespace that organizes blobs into directories, allowing atomic directory rename and delete operations, which is critical for big data frameworks like Apache Spark and Hadoop that rely on POSIX-like file system operations. A real-world scenario is migrating an on-premises Hadoop cluster to Azure: you must create a new storage account with HNS enabled to support the same directory structure and ACLs.

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.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this DP-900 question test?

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: Enables Azure Data Lake Storage Gen2. — Setting 'isHnsEnabled' to true enables the Hierarchical Namespace (HNS) feature on the Azure Storage account, which is the core requirement for Azure Data Lake Storage Gen2. This allows the storage account to support a file system-like directory structure with POSIX-compliant access control lists, enabling analytics workloads to use both blob and file system semantics.

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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Last reviewed: Jun 24, 2026

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