This SAA-C03 practice question tests your understanding of design resilient architectures. 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. A key principle to apply: s3 Cross-Region Replication (CRR) copies objects to a different AWS Region.. 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 trading dashboard stores uploaded documents in S3. The business requires a copy in another AWS Region for disaster recovery. What should be configured? The team wants the control to be enforceable during normal operations.
An EBS snapshot schedule
Why wrong: EBS snapshots do not apply to S3 objects.
S3 Cross-Region Replication with versioning enabled
CRR asynchronously replicates objects to a bucket in another Region and requires versioning.
S3 lifecycle transition to Glacier Flexible Retrieval
Why wrong: Lifecycle transition changes storage class, not Region.
A CloudFront distribution
Why wrong: CloudFront caches content but is not a durable DR copy.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
S3 Cross-Region Replication with versioning enabled
S3 Cross-Region Replication (CRR) automatically replicates objects to a destination bucket in a different AWS Region, providing a disaster recovery copy. Enabling versioning on both source and destination buckets is required for CRR to function, and replication can be enforced during normal operations by applying an IAM policy that denies `s3:PutObject` unless the request includes the `x-amz-server-side-encryption` header or by using a bucket policy that requires replication. This meets the business requirement for an enforceable, automated DR copy.
Key principle: S3 Cross-Region Replication (CRR) copies objects to a different AWS Region.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
An EBS snapshot schedule
Why it's wrong here
EBS snapshots do not apply to S3 objects.
S3 Cross-Region Replication with versioning enabled
Why this is correct
CRR asynchronously replicates objects to a bucket in another Region and requires versioning.
Related concept
S3 Cross-Region Replication (CRR) copies objects to a different AWS Region.
S3 lifecycle transition to Glacier Flexible Retrieval
Why it's wrong here
Lifecycle transition changes storage class, not Region.
A CloudFront distribution
Why it's wrong here
CloudFront caches content but is not a durable DR copy.
Common exam traps
The trap here is that candidates confuse S3 Cross-Region Replication with S3 lifecycle policies or Glacier transitions, thinking that moving data to a cold storage class in the same region provides DR, when in fact DR requires a copy in a separate geographic region.
Detailed technical explanation
S3 CRR uses asynchronous replication; after an object is uploaded to the source bucket, S3 replicates it to the destination bucket typically within 15 minutes, but there is no SLA on replication time. Replication rules can be scoped by prefix, tags, or object size, and you can replicate objects encrypted with SSE-S3 or SSE-KMS (with additional KMS key permissions). A common real-world scenario is enforcing replication via a bucket policy that denies `s3:PutObject` unless the `x-amz-replication-status` header is present, ensuring all uploads are replicated.
Key takeaway
S3 Cross-Region Replication (CRR) copies objects to a different AWS Region.
Real-world example
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
Review s3 Cross-Region Replication (CRR) copies objects to a different AWS Region., then practise related SAA-C03 questions on the same topic to reinforce the concept.
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FAQ
Design Resilient Architectures — This question tests Design Resilient Architectures — S3 Cross-Region Replication (CRR) copies objects to a different AWS Region..
The correct answer is: S3 Cross-Region Replication with versioning enabled — S3 Cross-Region Replication (CRR) automatically replicates objects to a destination bucket in a different AWS Region, providing a disaster recovery copy. Enabling versioning on both source and destination buckets is required for CRR to function, and replication can be enforced during normal operations by applying an IAM policy that denies `s3:PutObject` unless the request includes the `x-amz-server-side-encryption` header or by using a bucket policy that requires replication. This meets the business requirement for an enforceable, automated DR copy.
Review s3 Cross-Region Replication (CRR) copies objects to a different AWS Region., then practise related SAA-C03 questions on the same topic to reinforce the concept.
S3 Cross-Region Replication (CRR) copies objects to a different AWS Region.
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Last reviewed: Jun 11, 2026
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