The answer is to configure AWS DRS to continuously replicate data to a staging area in AWS, and launch instances in the target region on failover. This configuration is correct because continuous replication to a staging area maintains an ongoing, near-synchronous copy of the on-premises database, enabling a recovery point objective (RPO) of 1 minute and a recovery time objective (RTO) of 15 minutes by keeping the staging area ready to launch fully provisioned instances in the target region. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this question tests your understanding of how AWS Elastic Disaster Recovery achieves ultra-low RPO through continuous block-level replication, as opposed to snapshot-based or scheduled backup methods which cannot meet a 1-minute RPO. A common trap is confusing point-in-time restore from snapshots with continuous replication, but remember: AWS DRS is the direct replacement for CloudEndure and is built for sub-minute RPO. Memory tip: “Continuous replication, continuous protection” — if the RPO is under 5 minutes, think staging area, not snapshots.
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 strategy for its on-premises database to AWS using AWS Elastic Disaster Recovery (AWS DRS). The recovery time objective (RTO) is 15 minutes, and the recovery point objective (RPO) is 1 minute. Which configuration should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure AWS DRS to continuously replicate data to a staging area in AWS, and launch instances in the target region on failover.
Option A is correct because continuous replication with a staging area provides very low RPO. Option B is wrong because point-in-time restore from snapshots has higher RPO. Option C is wrong because CloudEndure (now AWS DRS) uses continuous replication. Option D is wrong because scheduled snapshots cannot achieve 1-minute RPO.
Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
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 CloudEndure Disaster Recovery (now AWS DRS) with periodic replication every hour.
Why it's wrong here
Hourly replication does not meet 1-minute RPO.
✗
Use AWS Backup to take snapshots every 5 minutes and restore in the target region.
Common exam trap: OSPF can fail even when IP connectivity looks correct
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Detailed technical explanation
How to think about this question
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
KKey Concepts to Remember
OSPF neighbours must agree on key parameters.
Router ID selection can affect neighbour relationships and LSDB output.
OSPF cost influences the preferred path.
A route can appear in OSPF information but not become the installed route.
TExam Day Tips
→Check area mismatch first when OSPF adjacency fails.
→Review passive interfaces when a network is advertised but no neighbour forms.
→Use show ip ospf neighbor and show ip route clues carefully.
Key takeaway
OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
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.
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related DOP-C02 OSPF questions on adjacency and route selection.
Resilient Cloud Solutions — This question tests Resilient Cloud Solutions — OSPF neighbours must agree on key parameters..
What is the correct answer to this question?
The correct answer is: Configure AWS DRS to continuously replicate data to a staging area in AWS, and launch instances in the target region on failover. — Option A is correct because continuous replication with a staging area provides very low RPO. Option B is wrong because point-in-time restore from snapshots has higher RPO. Option C is wrong because CloudEndure (now AWS DRS) uses continuous replication. Option D is wrong because scheduled snapshots cannot achieve 1-minute RPO.
What should I do if I get this DOP-C02 question wrong?
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related DOP-C02 OSPF questions on adjacency and route selection.
What is the key concept behind this question?
OSPF neighbours must agree on key parameters.
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 →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.