The correct choice is to enable S3 Versioning and S3 Cross-Region Replication (CRR) with replication time control (RTC). This configuration meets the disaster recovery requirements because CRR copies objects to a different AWS region, providing geographic isolation, while RTC guarantees a predictable replication time of 99.99% of objects within 15 minutes, ensuring the required RPO of less than 5 minutes. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this scenario tests your ability to distinguish between CRR and Same-Region Replication (SRR), as SRR cannot protect against a regional failure. A common trap is choosing SRR when the question emphasizes a multi-region DR strategy, or assuming that enabling versioning alone provides cross-region protection. Remember the memory tip: “CRR for DR, SRR for sync” — if the requirement involves a different region and a tight RPO, always pair CRR with RTC.
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 implementing a disaster recovery strategy for an S3 bucket containing critical data. The bucket must be available within 15 minutes if the primary region fails. Data must be replicated with RPO of less than 5 minutes. Which S3 replication configuration should be used?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable S3 Versioning and S3 Cross-Region Replication (CRR) with replication time control (RTC)
Correct answer is D. S3 Same-Region Replication (SRR) is for same-region, not DR. Cross-Region Replication (CRR) replicates to another region with RPO typically minutes. However, to achieve RPO <5 minutes and availability within 15 minutes, CRR is the correct choice. Option A is wrong because SRR does not protect against region failure. Option B is wrong because it uses SRR, which is same-region. Option C is wrong because versioning alone does not replicate to another region.
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 S3 Versioning and S3 Same-Region Replication (SRR)
Why it's wrong here
SRR does not protect against region failure.
✗
Enable S3 Versioning and configure S3 Event Notifications to trigger a Lambda function that copies objects to another region
Why it's wrong here
Lambda-based copy is not as reliable or fast as CRR.
✗
Enable S3 Versioning and transfer data to another region using AWS DataSync
Why it's wrong here
DataSync is not automatic continuous replication.
✓
Enable S3 Versioning and S3 Cross-Region Replication (CRR) with replication time control (RTC)
Why this is correct
CRR plus RTC ensures replication within minutes and provides cross-region DR.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
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: Enable S3 Versioning and S3 Cross-Region Replication (CRR) with replication time control (RTC) — Correct answer is D. S3 Same-Region Replication (SRR) is for same-region, not DR. Cross-Region Replication (CRR) replicates to another region with RPO typically minutes. However, to achieve RPO <5 minutes and availability within 15 minutes, CRR is the correct choice. Option A is wrong because SRR does not protect against region failure. Option B is wrong because it uses SRR, which is same-region. Option C is wrong because versioning alone does not replicate to another region.
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.
Are there clue words in this question I should notice?
Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company stores critical data in an S3 bucket. The SysOps administrator needs to ensure that the data is durable and can be recovered if an entire AWS Region becomes unavailable. What is the MOST cost-effective solution?
easy
A.Use AWS Backup to manually copy the bucket to another Region.
B.Enable S3 Versioning on the bucket.
C.Use S3 Standard storage class.
✓ D.Configure S3 Cross-Region Replication to a bucket in another Region.
Why D: S3 Cross-Region Replication (CRR) automatically replicates objects to a bucket in a different Region, providing protection against regional outages. Option A is wrong because versioning alone does not protect against regional failure. Option C is wrong because it is not automated. Option D is wrong because S3 standard offers 99.999999999% durability but only within a Region.
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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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