The correct answer is to enable Multi-AZ and create a cross-Region read replica. Multi-AZ provides automatic failover to a standby in a different Availability Zone, ensuring high availability within a region, while a cross-Region read replica replicates data asynchronously to another AWS Region, protecting against a regional disaster. Together, these two actions meet the strict RPO of less than 5 seconds because replication is continuous, and the RTO of 15 minutes because the read replica can be promoted to a standalone primary quickly. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this question tests your understanding of the difference between high availability (Multi-AZ) and disaster recovery (cross-Region replication). A common trap is choosing automated backups, which have an RPO of up to 5 minutes, or a single-Region read replica, which does not protect against region failure. Remember the memory tip: “Multi-AZ for uptime, cross-Region for region time.”
SOA-C02 Reliability and Business Continuity Practice Question
This SOA-C02 practice question tests your understanding of reliability and business continuity. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 designing a disaster recovery strategy for a production RDS MySQL database. The database must be recoverable within 15 minutes with a Recovery Point Objective (RPO) of less than 5 seconds. Which TWO actions should the administrator take? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable Multi-AZ deployment for the RDS instance.
Options B and C are correct. Enabling Multi-AZ provides automatic failover to a standby in a different AZ, and using a cross-Region read replica allows replication to a different region for disaster recovery. Option A is wrong because automated backups have an RPO of up to 5 minutes, not <5 seconds. Option D is wrong because a single-Region read replica does not protect against regional failure. Option E is wrong because manual snapshots are not automated and have higher RPO.
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.
✗
Create a read replica in the same AWS Region.
Why it's wrong here
Does not protect against regional failure.
✓
Enable Multi-AZ deployment for the RDS instance.
Why this is correct
Provides low RPO failover within region.
Related concept
Read the scenario before looking for a memorised answer.
✓
Create a cross-Region read replica in another AWS Region.
Why this is correct
Provides asynchronous replication with RPO of seconds.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable automated backups with a retention period of 35 days.
Why it's wrong here
RPO of automated backups is up to 5 minutes, not <5 seconds.
✗
Take manual snapshots every hour.
Why it's wrong here
RPO of up to 1 hour, not <5 seconds.
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 Multi-AZ deployment for the RDS instance. — Options B and C are correct. Enabling Multi-AZ provides automatic failover to a standby in a different AZ, and using a cross-Region read replica allows replication to a different region for disaster recovery. Option A is wrong because automated backups have an RPO of up to 5 minutes, not <5 seconds. Option D is wrong because a single-Region read replica does not protect against regional failure. Option E is wrong because manual snapshots are not automated and have higher RPO.
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.
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 SysOps administrator is designing a disaster recovery plan for a critical RDS MySQL database. The database must be available with a Recovery Point Objective (RPO) of less than 1 hour and a Recovery Time Objective (RTO) of less than 2 hours. The primary region is us-east-1. Which solution meets these requirements?
medium
A.Enable Multi-AZ deployment in the primary region
B.Enable automated backups and restore to a new region when needed
C.Take daily manual snapshots and copy them to another region
✓ D.Create a cross-Region read replica in us-west-2 and promote it during a disaster
Why D: Correct answer is C. Cross-Region read replicas provide asynchronous replication with RPO typically seconds to minutes, and promoting a replica can be done in minutes, meeting both RPO and RTO. Option A is wrong because automated backups have RPO of up to 5 minutes but restoring in another region takes longer than 2 hours. Option B is wrong because Multi-AZ is for high availability within a region, not cross-region DR. Option D is wrong because manual snapshots require manual intervention and restore time is unpredictable.
Variation 2. A SysOps administrator is tasked with designing a disaster recovery strategy for an Amazon RDS for PostgreSQL database. The database is currently in us-east-1. The recovery point objective (RPO) is 5 seconds, and the recovery time objective (RTO) is 1 minute. Which solution meets these requirements?
hard
A.Create a cross-region read replica in us-west-2 and promote it during a disaster.
B.Take daily automated snapshots and copy them to another region.
✓ C.Enable Multi-AZ deployment with automatic failover.
D.Deploy the database in a single AZ and use point-in-time recovery.
Why C: Option D is correct because Multi-AZ with automatic failover provides a standby in a different AZ within the same region, with RTO typically 1-2 minutes and RPO of seconds. Option A is wrong because cross-region read replicas have asynchronous replication with potential lag >5 seconds. Option B is wrong because snapshots have RPO of hours. Option C is wrong because single-AZ does not provide automatic failover.
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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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