SAA-C03 Design Cost-Optimized Architectures Practice Question
This SAA-C03 practice question tests your understanding of design cost-optimized architectures. 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. A key principle to apply: s3 lifecycle policies automate object transitions between storage classes.. 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.
A test environment stores logs in S3. Logs are queried for 30 days, rarely accessed for one year, and then retained for compliance. What should reduce storage cost?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
S3 lifecycle policy that transitions objects to lower-cost storage classes over time
Option C is correct because an S3 Lifecycle policy automates the transition of objects from S3 Standard (for frequent access) to S3 Standard-IA (infrequent access) after 30 days, then to S3 Glacier Deep Archive (for long-term retention) after one year, minimizing storage costs while maintaining data accessibility as needed.
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Keep all logs in S3 Standard indefinitely
Why it's wrong here
S3 Standard is more expensive for rarely accessed archival data.
✗
Move all logs immediately to S3 Glacier Deep Archive
Why it's wrong here
Immediate deep archive can make recent query access slow and expensive.
✓
S3 lifecycle policy that transitions objects to lower-cost storage classes over time
Why this is correct
Lifecycle rules automate transitions based on age, matching storage cost to access patterns.
Related concept
S3 lifecycle policies automate object transitions between storage classes.
✗
Use EBS snapshots for the logs
Why it's wrong here
EBS snapshots are not the right storage model for application log objects.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may choose immediate transition to Glacier Deep Archive (Option B) without considering the 30-day query period, failing to match the lifecycle to the access pattern described in the question.
Detailed technical explanation
How to think about this question
S3 Lifecycle policies use transition actions based on object age (days since creation) to move data between storage classes, with minimum transition days (e.g., 30 days for Standard to Standard-IA, 90 days for Standard-IA to Glacier Deep Archive). A common real-world scenario is setting a lifecycle rule to transition logs to S3 Glacier Deep Archive after 365 days, which reduces cost from ~$0.023/GB/month (Standard) to ~$0.001/GB/month (Deep Archive), but requires planning for retrieval times of 12-48 hours if needed for audits.
KKey Concepts to Remember
S3 lifecycle policies automate object transitions between storage classes.
Policies are based on object age or prefix filters.
They reduce storage costs by matching data access patterns to storage classes.
Transitions can be configured for S3 Standard, Standard-IA, One Zone-IA, Intelligent-Tiering, Glacier, and Glacier Deep Archive.
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
S3 lifecycle policies automate object transitions between storage classes.
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.
What to study next
Got this wrong? Here's your next step.
Review s3 lifecycle policies automate object transitions between storage classes., then practise related SAA-C03 questions on the same topic to reinforce the concept.
Design Cost-Optimized Architectures — This question tests Design Cost-Optimized Architectures — S3 lifecycle policies automate object transitions between storage classes..
What is the correct answer to this question?
The correct answer is: S3 lifecycle policy that transitions objects to lower-cost storage classes over time — Option C is correct because an S3 Lifecycle policy automates the transition of objects from S3 Standard (for frequent access) to S3 Standard-IA (infrequent access) after 30 days, then to S3 Glacier Deep Archive (for long-term retention) after one year, minimizing storage costs while maintaining data accessibility as needed.
What should I do if I get this SAA-C03 question wrong?
Review s3 lifecycle policies automate object transitions between storage classes., then practise related SAA-C03 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
S3 lifecycle policies automate object transitions between storage classes.
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