The correct answer is to use AWS Backup to create automated backups of the EFS file system and restore to a new file system if needed. This solution meets the 15-minute recovery time objective because AWS Backup performs incremental, point-in-time recovery for EFS, allowing you to restore a file system to any previous backup state quickly by creating a new EFS file system from the selected snapshot. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this question tests your understanding of managed backup services versus custom solutions; a common trap is confusing EFS lifecycle policies (which only tier data to Infrequent Access or Archive) with actual backups, or assuming EBS snapshots can protect EFS directly. Remember that EFS-to-EFS replication via AWS Backup is the only native, fully managed way to achieve point-in-time recovery with a predictable RTO under 15 minutes. Memory tip: “Backup is for recovery, lifecycle is for cost—don’t mix the two.”
SOA-C02 Reliability and Business Continuity Practice Question
This SOA-C02 practice question tests your understanding of reliability and business continuity. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
A SysOps administrator is designing a backup strategy for an Amazon EFS file system. The file system stores critical data that must be recoverable within 15 minutes of a failure. Which solution meets these requirements?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use AWS Backup to create automated backups of the EFS file system and restore to a new file system if needed.
Option A is correct because EFS-to-EFS replication using AWS Backup allows point-in-time recovery and meets the 15-minute RTO. Option B is wrong because lifecycle policies do not create backups. Option C is wrong because Lambda functions must be custom-built. Option D is wrong because EBS snapshots cannot be used for EFS directly.
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 AWS Backup to create automated backups of the EFS file system and restore to a new file system if needed.
Why this is correct
AWS Backup supports EFS and allows quick restore.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure EFS lifecycle management to move files to Infrequent Access storage class.
Why it's wrong here
Lifecycle management reduces cost, not backup.
✗
Take periodic EBS snapshots of the EC2 instance that mounts the EFS volume.
Why it's wrong here
EBS snapshots do not capture EFS data.
✗
Create a Lambda function that copies files to an S3 bucket every hour.
Why it's wrong here
Custom solution, not standard backup.
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.
What to study next
Got this wrong? Here's your next step.
Identify which SOA-C02 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.
Reliability and Business Continuity — This question tests Reliability and Business Continuity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use AWS Backup to create automated backups of the EFS file system and restore to a new file system if needed. — Option A is correct because EFS-to-EFS replication using AWS Backup allows point-in-time recovery and meets the 15-minute RTO. Option B is wrong because lifecycle policies do not create backups. Option C is wrong because Lambda functions must be custom-built. Option D is wrong because EBS snapshots cannot be used for EFS directly.
What should I do if I get this SOA-C02 question wrong?
Identify which SOA-C02 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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This SOA-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SOA-C02 exam.
Question Discussion
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