ExpertEasy1 markMultiple Choice
AZ-305 · Question 26 · Domain 2.3: Recommend a data storage solution
A data science team needs to store petabytes of raw data for machine learning.
The data will be analyzed using Azure Databricks. The team requires POSIX-compliant Access Control Lists (ACLs) to restrict access at the directory and file level.
Which storage solution should you recommend?
A data science team needs to store petabytes of raw data for machine learning.
The data will be analyzed using Azure Databricks. The team requires POSIX-compliant Access Control Lists (ACLs) to restrict access at the directory and file level.
Which storage solution should you recommend?
Answer options:
A.
Azure Data Lake Storage Gen2
B.
Azure Blob Storage (Flat Namespace)
C.
Azure Files
D.
Azure SQL Database
How to approach this question
Match 'POSIX ACLs', 'directory level permissions', and 'big data/Databricks' to Data Lake Storage Gen2.
Full Answer
A.Azure Data Lake Storage Gen2✓ Correct
Azure Data Lake Storage Gen2 is built on top of Azure Blob Storage. By enabling the hierarchical namespace feature, it provides true directory structures and supports POSIX-compliant Access Control Lists (ACLs). This allows granular security at the directory and file level, which is a strict requirement for many big data and analytics workloads using tools like Databricks or Synapse.
Common mistakes
Choosing standard Blob Storage, forgetting that without the hierarchical namespace enabled, it cannot support POSIX ACLs.
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