The answer is using Azure Blob Storage access tiers (hot, cool, archive) and lifecycle management policies. These two methods directly reduce storage costs by automatically moving data to cooler, cheaper tiers as it ages, aligning spending with data access patterns. On the DP-203 exam, this question tests your understanding of cost optimization for Azure Data Lake Storage Gen2, where the key concept is that Gen2 is built on Blob Storage and inherits its tiered pricing model. A common trap is confusing redundancy options like GRS, which increase cost, with tier-based savings, or assuming encryption or soft delete affect storage pricing—they do not. Remember the memory tip: “Tiers and lifecycles trim the price; redundancy and soft delete are nice, but not thrice.”
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.
Which TWO methods can you use to optimize the cost of storing data in Azure Data Lake Storage Gen2?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure lifecycle management policies to move older data to the cool or archive tier.
Options A and C are correct. Option A: Lifecycle management policies can move data to cooler tiers. Option C: Using Azure Blob Storage access tiers (hot, cool, archive) directly reduces cost. Option B is wrong because redundancy options like GRS increase cost. Option D is wrong because enabling soft delete adds storage overhead. Option E is wrong because encryption does not affect storage cost.
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.
✗
Use customer-managed keys for encryption.
Why it's wrong here
Encryption does not impact storage cost.
✓
Configure lifecycle management policies to move older data to the cool or archive tier.
Why this is correct
Reduces storage cost by moving data to cheaper tiers.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable soft delete for blobs.
Why it's wrong here
Soft delete adds retention costs.
✓
Use Azure Blob Storage access tiers: hot, cool, and archive.
Why this is correct
Access tiers allow cost optimization based on access frequency.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable geo-redundant storage (GRS) for disaster recovery.
Why it's wrong here
GRS increases cost.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
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: Configure lifecycle management policies to move older data to the cool or archive tier. — Options A and C are correct. Option A: Lifecycle management policies can move data to cooler tiers. Option C: Using Azure Blob Storage access tiers (hot, cool, archive) directly reduces cost. Option B is wrong because redundancy options like GRS increase cost. Option D is wrong because enabling soft delete adds storage overhead. Option E is wrong because encryption does not affect storage cost.
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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