- A
Enable Cross-Region Replication on the source bucket.
CRR automatically replicates objects to a specified destination bucket in a different region.
- B
Use S3 Transfer Acceleration for faster uploads.
Why wrong: Transfer Acceleration improves upload speed but does not replicate objects.
- C
Enable versioning on the source bucket.
Why wrong: Versioning tracks object versions but does not replicate them.
- D
Configure a lifecycle policy to transition objects to Glacier.
Why wrong: Lifecycle policies do not replicate data across regions.
Question 282 of 1,546
S3 Cross-Region Replication for Disaster Recovery
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.
An application uploads files to an S3 bucket. The SysOps administrator needs to ensure that the files are automatically replicated to another bucket in a different AWS Region for disaster recovery. Which action should be taken?
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
✓
Enable Cross-Region Replication on the source bucket.
Cross-Region Replication (CRR) is the correct AWS feature to automatically replicate objects from a source S3 bucket to a destination bucket in a different AWS Region. CRR requires versioning to be enabled on both the source and destination buckets, and it copies every object uploaded to the source bucket asynchronously to the destination bucket, providing disaster recovery across regions.
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.
- ✓
Enable Cross-Region Replication on the source bucket.
Why this is correct
CRR automatically replicates objects to a specified destination bucket in a different region.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use S3 Transfer Acceleration for faster uploads.
Why it's wrong here
Transfer Acceleration improves upload speed but does not replicate objects.
- ✗
Enable versioning on the source bucket.
Why it's wrong here
Versioning tracks object versions but does not replicate them.
- ✗
Configure a lifecycle policy to transition objects to Glacier.
Why it's wrong here
Lifecycle policies do not replicate data across regions.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse enabling versioning (a prerequisite for CRR) with the actual replication action, or they mistakenly think Transfer Acceleration or lifecycle policies can achieve cross-region replication.
Detailed technical explanation
How to think about this question
CRR uses S3's PUT Object replication mechanism, which requires IAM roles with appropriate permissions (e.g., `s3:ReplicateObject`) and a replication rule configured on the source bucket. The replication process is asynchronous and typically completes within 15 minutes for most objects, but can take longer for large objects. A common real-world scenario is replicating critical logs or backups from us-east-1 to eu-west-2 to ensure data survives a regional outage.
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.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
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: Enable Cross-Region Replication on the source bucket. — Cross-Region Replication (CRR) is the correct AWS feature to automatically replicate objects from a source S3 bucket to a destination bucket in a different AWS Region. CRR requires versioning to be enabled on both the source and destination buckets, and it copies every object uploaded to the source bucket asynchronously to the destination bucket, providing disaster recovery across regions.
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.
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Last reviewed: Jul 4, 2026
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.
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