The answer is a lifecycle management policy. This is the correct choice because it allows you to define rules that automatically delete blobs based on their age, such as removing log files older than 90 days from Azure Data Lake Storage Gen2. On the Microsoft Azure Data Engineer Associate DP-203 exam, this question tests your understanding of cost optimization and data retention strategies, often appearing as a scenario where you must choose between inventory reports, Azure Policy, or Purview—common traps that manage metadata or enforce compliance but never delete data. Remember that lifecycle management policies operate at the storage account level and can be applied to blob containers or specific paths, making them ideal for automated cleanup without manual intervention. A helpful memory tip: think of "lifecycle" as the full journey of data—birth, use, and death—where only lifecycle management handles the final deletion step.
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 have an Azure Data Lake Storage Gen2 account that stores log files. You need to implement a data retention policy so that logs older than 90 days are automatically deleted. What should you use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Lifecycle management policy
Option B is correct because a lifecycle management policy can automatically delete blobs based on age. Option A is wrong because Azure Blob Storage inventory provides reports but does not delete. Option C is wrong because Azure Policy enforces compliance but does not delete data. Option D is wrong because Azure Purview scopes metadata and data discovery, not lifecycle management.
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.
✗
Azure Policy
Why it's wrong here
Azure Policy enforces rules on resource configurations, not data deletion.
✓
Lifecycle management policy
Why this is correct
Lifecycle management can automatically delete blobs that are older than a specified number of days.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure Blob Storage inventory
Why it's wrong here
Inventory provides a list of blobs but does not perform deletion.
✗
Microsoft Purview
Why it's wrong here
Purview provides data governance and cataloging, not lifecycle management for data deletion.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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-203 question in full detail.
Identify which DP-203 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Secure, monitor, and optimize data storage and data processing — This question tests Secure, monitor, and optimize data storage and data processing — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Lifecycle management policy — Option B is correct because a lifecycle management policy can automatically delete blobs based on age. Option A is wrong because Azure Blob Storage inventory provides reports but does not delete. Option C is wrong because Azure Policy enforces compliance but does not delete data. Option D is wrong because Azure Purview scopes metadata and data discovery, not lifecycle management.
What should I do if I get this DP-203 question wrong?
Identify which DP-203 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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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