The answer is that the lifecycle management rule was configured after the blob was created, and it can take up to 24 hours for the rule to be evaluated. This is because Azure Storage evaluates lifecycle management rules once per day, and the evaluation timing starts from when the rule is applied, not from when the blob was created. Even though the blob is 45 days old, if the rule was added only recently, the 30-day countdown begins after the first evaluation cycle completes, meaning the blob may still be in the Cool tier while awaiting its first archive check. On the DP-203 exam, this scenario tests your understanding of Azure Blob lifecycle management rule evaluation delay and the asynchronous nature of policy enforcement—a common trap is assuming rules apply retroactively to existing blobs. Remember the memory tip: “Rules don’t time travel; they start their clock when Azure says ‘go’.”
DP-203 Design and implement data storage Practice Question
This DP-203 practice question tests your understanding of design and implement data storage. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Exhibit
Refer to the exhibit.
az storage blob show \
--account-name exampledatalake \
--container-name raw \
--name sensor/2023/01/01/data.parquet \
--query "properties.blobTier"
Output: "Cool"
A data engineer runs the Azure CLI command shown in the exhibit. The blob is stored in Azure Blob Storage. The team previously set a lifecycle management rule to move blobs to the Archive tier after 30 days. The blob was created 45 days ago. What is the most likely reason the blob is still in the Cool tier?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Refer to the exhibit.
az storage blob show \
--account-name exampledatalake \
--container-name raw \
--name sensor/2023/01/01/data.parquet \
--query "properties.blobTier"
Output: "Cool"
A
The lifecycle management rule only applies to blobs in the Hot tier.
Why wrong: Incorrect. Lifecycle rules apply to both Hot and Cool tiers.
B
The lifecycle management rule was configured after the blob was created, and it can take up to 24 hours for the rule to be evaluated.
Correct. Lifecycle rules are evaluated once per day, so there may be a delay.
C
The blob is in a container that is excluded from the lifecycle rule.
Why wrong: Possible, but not the most likely reason given the info.
D
The blob must be in the Hot tier for the rule to move it to Archive.
Why wrong: Incorrect. The rule can move from Cool to Archive.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The lifecycle management rule was configured after the blob was created, and it can take up to 24 hours for the rule to be evaluated.
The lifecycle management rule is evaluated by Azure Storage once per day. If the rule was configured after the blob was created, it may not have been evaluated yet, and it can take up to 24 hours for the rule to apply. Since the blob is 45 days old and still in Cool tier, the most likely reason is that the rule has not yet been evaluated after its configuration.
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.
✗
The lifecycle management rule only applies to blobs in the Hot tier.
Why it's wrong here
Incorrect. Lifecycle rules apply to both Hot and Cool tiers.
✓
The lifecycle management rule was configured after the blob was created, and it can take up to 24 hours for the rule to be evaluated.
Why this is correct
Correct. Lifecycle rules are evaluated once per day, so there may be a delay.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The blob is in a container that is excluded from the lifecycle rule.
Why it's wrong here
Possible, but not the most likely reason given the info.
✗
The blob must be in the Hot tier for the rule to move it to Archive.
Why it's wrong here
Incorrect. The rule can move from Cool to Archive.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume lifecycle rules are evaluated immediately or that blobs must be in Hot tier to be moved to Archive, but Azure's daily evaluation cycle and the ability to move from Cool to Archive are the key nuances tested.
Detailed technical explanation
How to think about this question
Azure Blob Storage lifecycle management policies are evaluated asynchronously once per day, typically within 24 hours of the policy being applied or modified. The rule uses the `lastModifiedTime` property of the blob to determine age, so a blob created 45 days ago would qualify for archiving if the rule existed at creation time. However, if the rule was added later, the evaluation cycle starts from the time the rule is saved, not from the blob's creation date.
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.
TExam Day Tips
→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.
Design and implement data storage — This question tests Design and implement data storage — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The lifecycle management rule was configured after the blob was created, and it can take up to 24 hours for the rule to be evaluated. — The lifecycle management rule is evaluated by Azure Storage once per day. If the rule was configured after the blob was created, it may not have been evaluated yet, and it can take up to 24 hours for the rule to apply. Since the blob is 45 days old and still in Cool tier, the most likely reason is that the rule has not yet been evaluated after its configuration.
What should I do if I get this DP-203 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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