The correct actions are deploying the application across multiple Availability Zones and using Amazon RDS Multi-AZ for the database tier. This combination ensures high availability and disaster recovery for a rehost migration because Multi-AZ provides synchronous standby replication within a single region, automatically failing over if the primary database fails, while distributing the web tier across AZs eliminates a single point of failure. On the AWS Certified Solutions Architect Professional SAP-C02 exam, this scenario tests your understanding that a lift-and-shift strategy prioritizes simplicity and minimal code changes, so you must avoid overcomplicating with cross-region Auto Scaling or relying on read replicas for availability. A common trap is confusing read replicas, which scale reads, with Multi-AZ’s purpose of failover and durability. Remember the memory tip: for rehost, keep it regional—Multi-AZ for the database, multi-AZ for the web tier.
SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
This SAP-C02 practice question tests your understanding of accelerate workload migration and modernization. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 migrating a critical application to AWS using a rehost (lift-and-shift) approach. The application consists of a web tier and a database tier. The company wants to ensure high availability and disaster recovery. Which TWO actions should the company 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
✓
Deploy the web tier across multiple Availability Zones.
Options A and D are correct. Deploying across multiple AZs provides high availability within a region. Using RDS Multi-AZ provides high availability for the database. Option B is wrong because Auto Scaling across multiple regions is not typical for lift-and-shift and adds complexity. Option C is wrong because a single AZ is not highly available. Option E is wrong because read replicas are for read scaling, not HA.
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.
✗
Configure Amazon EC2 Auto Scaling to launch instances across multiple AWS Regions.
Why it's wrong here
Cross-region Auto Scaling is not typical and adds complexity.
✓
Deploy the web tier across multiple Availability Zones.
Why this is correct
Provides high availability for the web tier.
Related concept
Read the scenario before looking for a memorised answer.
✓
Use Amazon RDS Multi-AZ for the database tier.
Why this is correct
Provides automatic failover and high availability.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Amazon RDS read replicas to offload read traffic.
Why it's wrong here
Read replicas do not provide high availability for writes.
✗
Use a single Availability Zone for the database to reduce latency.
Why it's wrong here
Single AZ is a single point of failure.
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 SAP-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.
Accelerate Workload Migration and Modernization — This question tests Accelerate Workload Migration and Modernization — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Deploy the web tier across multiple Availability Zones. — Options A and D are correct. Deploying across multiple AZs provides high availability within a region. Using RDS Multi-AZ provides high availability for the database. Option B is wrong because Auto Scaling across multiple regions is not typical for lift-and-shift and adds complexity. Option C is wrong because a single AZ is not highly available. Option E is wrong because read replicas are for read scaling, not HA.
What should I do if I get this SAP-C02 question wrong?
Identify which SAP-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.
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Question Discussion
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