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Exam DP-201 topic 1 question 48 discussion

Actual exam question from Microsoft's DP-201

Question #: 48
Topic #: 1

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
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You plan to store delimited text files in an Azure Data Lake Storage account that will be organized into department folders.
You need to configure data access so that users see only the files in their respective department folder.
Solution: From the storage account, you enable a hierarchical namespace, and you use access control lists (ACLs).
Does this meet the goal?

A. Yes
B. No

Show Suggested Answer

Suggested Answer: B 🗳️
Azure Data Lake Storage implements an access control model that derives from HDFS, which in turn derives from the POSIX access control model.
Blob container ACLs does not support the hierarchical namespace, so it must be disabled.
Reference:
https://docs.microsoft.com/en-us/azure/storage/blobs/data-lake-storage-known-issues

by niwe at April 4, 2021, 9:06 a.m.

Comments

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niwe

Highly Voted 4 years, 2 months ago

Hierarchical namespace, must be enabled, so No. https://docs.microsoft.com/en-us/azure/storage/blobs/data-lake-storage-acl-dotnet

upvoted 12 times

azurenav

4 years ago

Question has "Enable",please check

upvoted 8 times

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Sennkumar

3 years, 11 months ago

It says enable, please check the question. Answer is "Yes"

upvoted 7 times

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cadio30

4 years ago

The link provided already stated that it requires to "ENABLE" the Hierarchical namespace which is included in the question. The appropriate answer is "Yes". Also this configuration is only available in Azure Data Lake Storage Gen 2 (azure storage blob)

upvoted 6 times

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Deasto

4 years, 1 month ago

The question saying "you enable a hierarchical namespace" though. Did the question change? Solution: From the storage account, you enable a hierarchical namespace, and you use access control lists (ACLs).

upvoted 7 times

niwe

4 years, 1 month ago

Yes you are right question has change

upvoted 5 times

Psycho

4 years ago

So, the answer is Yes, right?

upvoted 7 times

BobFar

4 years ago

right, the answer is YES

upvoted 5 times

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crissw22

4 years ago

so, YES is the answer

upvoted 9 times

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satyamkishoresingh

Most Recent 3 years, 9 months ago

This should be Yes as solution Fit the problem statement , Enable Hierarchical namespace + ACL

upvoted 1 times

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tes

3 years, 11 months ago

you enable a hierarchical namespace = then the storage account becomes Gen2 Enable ACL: Gen2 automatically has ACL so the answer is Yes

upvoted 1 times

tes

3 years, 11 months ago

sorry ignore this, wrong answer. I cannot delete it. ACL is there in Gen1.

upvoted 1 times

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davita8

4 years, 1 month ago

B. No The answer

upvoted 1 times

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Apox

4 years, 1 month ago

The answer is "NO" Hierarchical namespace must be enabled to have a folder structure and actually be an ADLS account (or else it is regular blob) However, it is correct to use ACLs, as this is the only mechanism to give "finer grain" level of access to directories and files. (except Shared Access Signature, but this would make more sense to use for external users for e.g. a limited amount of time) Source: https://docs.microsoft.com/en-us/azure/storage/blobs/data-lake-storage-access-control-model

upvoted 2 times

azurenav

4 years ago

Question has "Enable",please check

upvoted 1 times

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aksoumi

4 years, 2 months ago

Also, note below from the Azure Documentation. In order to create ADLS account you have to enable Hierarchical option, else it is not ADLS. Hence correct ANSWER is "NO" "You'll create a Data Lake Storage Gen2 account the same way you create an Azure Blob store, but with one setting difference. In Advanced, in the Data Lake Storage Gen2 (preview) section, next to Hierarchical namespace, select Enabled."

upvoted 3 times

azurenav

4 years ago

Question has "Enable",please check

upvoted 1 times

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