DP-203 Practice Question: Secure, monitor, and optimize data storage and data processing
This DP-203 practice question tests your understanding of secure, monitor, and optimize data storage and data processing. 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.
You use Azure Data Lake Storage Gen2 with a hierarchical namespace. You need to delegate permissions to a group of data scientists so they can create folders and upload files only within a specific directory path. What is the best way to achieve this?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Set ACL entries on the specific directory path granting read, write, and execute permissions to the users.
Option B is correct because Azure Data Lake Storage Gen2 supports POSIX-like ACLs that can be set on directory paths to grant granular permissions. Option A is wrong because RBAC roles are scoped to the entire storage account or container, not subdirectories. Option C is wrong because SAS tokens are scoped to the entire storage account or container. Option D is wrong because access policies are for shared access signatures, not granular directory permissions.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Use a stored access policy to grant permissions to the directory.
Why it's wrong here
Incorrect: Stored access policies are used with SAS tokens, not for direct user access.
✓
Set ACL entries on the specific directory path granting read, write, and execute permissions to the users.
Why this is correct
Correct: ACLs allow fine-grained permissions on directories and files.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
Generate a shared access signature (SAS) with permissions scoped to the specific directory.
Why it's wrong here
Incorrect: SAS tokens are scoped to the container level, not subdirectory.
✗
Assign the Storage Blob Data Contributor role to the users at the storage account level.
Why it's wrong here
Incorrect: This would grant full access to all containers and directories.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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-203 question in full detail.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DP-203 NAT questions on configuration and troubleshooting.
Secure, monitor, and optimize data storage and data processing — This question tests Secure, monitor, and optimize data storage and data processing — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Set ACL entries on the specific directory path granting read, write, and execute permissions to the users. — Option B is correct because Azure Data Lake Storage Gen2 supports POSIX-like ACLs that can be set on directory paths to grant granular permissions. Option A is wrong because RBAC roles are scoped to the entire storage account or container, not subdirectories. Option C is wrong because SAS tokens are scoped to the entire storage account or container. Option D is wrong because access policies are for shared access signatures, not granular directory permissions.
What should I do if I get this DP-203 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DP-203 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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