- A
Use AWS Backup to create automated backups of the EFS file system and restore to a new file system if needed.
AWS Backup supports EFS and allows quick restore.
- B
Configure EFS lifecycle management to move files to Infrequent Access storage class.
Why wrong: Lifecycle management reduces cost, not backup.
- C
Take periodic EBS snapshots of the EC2 instance that mounts the EFS volume.
Why wrong: EBS snapshots do not capture EFS data.
- D
Create a Lambda function that copies files to an S3 bucket every hour.
Why wrong: Custom solution, not standard backup.
Question 1,104 of 1,546
SOA-C02 Reliability and Business Continuity Practice Question
This SOA-C02 practice question tests your understanding of reliability and business continuity. 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.
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 choices
Why each option matters
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.
AWS Backup provides a fully managed, policy-driven backup solution for Amazon EFS that supports automated, scheduled backups with point-in-time recovery. Restoring an EFS file system from a backup typically completes within minutes, meeting the 15-minute recovery time objective (RTO). This is the only option that directly addresses the requirement for recoverable backups with a defined RTO.
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
The trap here is that candidates may confuse EFS lifecycle management or EBS snapshots with backup solutions, not realizing that EFS requires a dedicated backup service (AWS Backup) to meet specific RTO/RPO requirements, and that EBS snapshots do not capture data stored on a separate network file system.
Detailed technical explanation
How to think about this question
AWS Backup for EFS uses the EFS Backup service under the hood, which creates consistent, crash-consistent file system backups by leveraging EFS's native snapshot capabilities. Restores are performed by creating a new EFS file system from the backup, which can be mounted and accessed within minutes. The service also supports cross-region backup copies and lifecycle policies for backup retention, making it suitable for compliance-driven recovery requirements.
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.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Reliability and Business Continuity — study guide chapter
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FAQ
Questions learners often ask
What does this SOA-C02 question test?
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. — AWS Backup provides a fully managed, policy-driven backup solution for Amazon EFS that supports automated, scheduled backups with point-in-time recovery. Restoring an EFS file system from a backup typically completes within minutes, meeting the 15-minute recovery time objective (RTO). This is the only option that directly addresses the requirement for recoverable backups with a defined RTO.
What should I do if I get this SOA-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
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