DOP-C02 Resilient Cloud Solutions Practice Question
This DOP-C02 practice question tests your understanding of resilient cloud solutions. 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 company is designing a disaster recovery plan for an Amazon S3 data lake. The data lake stores sensitive data that must be replicated to a secondary Region with an RPO of 15 minutes. Which THREE actions should the company take? (Choose THREE.)
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 on both the source and destination buckets.
Option A is correct because enabling S3 Versioning on both the source and destination buckets is a prerequisite for S3 Replication. Without versioning, replication cannot track object versions, which is essential for meeting the 15-minute RPO with consistency guarantees.
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 on both the source and destination buckets.
Why this is correct
Versioning is required for CRR.
Related concept
Read the scenario before looking for a memorised answer.
✓
Enable S3 Replication Time Control (RTC) for the replication rule.
Why this is correct
RTC guarantees replication within 15 minutes.
Related concept
Read the scenario before looking for a memorised answer.
✓
Configure cross-Region replication (CRR) from the source bucket to the destination bucket.
Why this is correct
CRR replicates objects to another Region.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure S3 Event Notifications to trigger a Lambda function that copies objects to the secondary Region.
Why it's wrong here
Event notifications are not a replication mechanism; they can be used but do not guarantee RPO.
✗
Enable S3 Transfer Acceleration on the source bucket.
Why it's wrong here
Transfer Acceleration speeds up uploads, not replication.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse S3 Event Notifications with Lambda as a viable replication method, overlooking that native CRR with RTC provides guaranteed RPO and versioning consistency without custom code overhead.
Detailed technical explanation
How to think about this question
S3 Replication Time Control (RTC) guarantees replication within 15 minutes for most objects (99.99% of objects within 15 minutes) by using a service-level agreement backed by Amazon CloudWatch metrics. Under the hood, RTC prioritizes replication events over standard replication queues, ensuring predictable RPO for compliance-sensitive workloads.
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.
Resilient Cloud Solutions — This question tests Resilient Cloud Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable S3 Versioning on both the source and destination buckets. — Option A is correct because enabling S3 Versioning on both the source and destination buckets is a prerequisite for S3 Replication. Without versioning, replication cannot track object versions, which is essential for meeting the 15-minute RPO with consistency guarantees.
What should I do if I get this DOP-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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This DOP-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 DOP-C02 exam.
Question Discussion
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