The correct answer is to stop the database instance, change to a larger instance type in a different Availability Zone, and use a placement group with the application servers. This solution directly addresses the core challenge of upgrading SAP HANA database instance type placement group requirements: when the next larger instance type is unavailable in the current AZ, moving to another AZ while placing the database in a placement group with the application servers ensures low-latency network connectivity, which is critical for SAP HANA’s performance-sensitive workloads. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this scenario tests your understanding that placement groups are the only way to guarantee single-digit millisecond latency between the database and application servers when they must reside in different AZs. A common trap is assuming you can simply scale application servers or switch instance families, but SAP HANA requires certified instance types and does not support Auto Scaling for the database. Memory tip: “Different AZ, same placement group” — the database and apps must stay close in the network, even if the AZ changes.
PAS-C01 Technology Practice Question
This PAS-C01 practice question tests your understanding of technology. 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 runs SAP S/4HANA on AWS with a production database on an r5.24xlarge instance and 15 application servers on r5.4xlarge instances. The system has been stable for months. Recently, the database instance started experiencing high CPU utilization during peak hours, causing performance degradation. The company has reserved capacity for the database instance. The SAP team has already optimized the SQL queries and reduced the CPU usage by 20%, but the CPU still spikes to 95% during peak hours. The team is considering upgrading the database instance to a larger type. However, the next larger instance type (r5.32xlarge) is not available in the current Availability Zone. The company needs a solution that minimizes downtime and cost. What should be done?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Stop the database instance, change to a larger instance type in a different Availability Zone, and use a placement group with the application servers.
Option B is correct. By placing the database instance in a placement group with the application servers, you can ensure low-latency connectivity. Then you can stop the instance, change the instance type to r5.32xlarge if available in another AZ, but since it's not available in current AZ, the best approach is to use a larger instance type in the same family that is available. However, the question states the next larger is r5.32xlarge but not available. So the correct action is to change to an available larger instance in another AZ. But the option B says 'Move to a larger instance in a different AZ with a placement group' which ensures low latency. Option A is wrong because increasing application servers does not reduce database CPU. Option C is wrong because moving to a different instance family may require SAP re-certification. Option D is wrong because using Auto Scaling for database is not supported for SAP HANA.
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.
✓
Stop the database instance, change to a larger instance type in a different Availability Zone, and use a placement group with the application servers.
Why this is correct
Provides more CPU and maintains low latency.
Related concept
Read the scenario before looking for a memorised answer.
✗
Migrate the database to a different instance family, such as x1e.32xlarge.
Why it's wrong here
Different family may not be certified for SAP HANA.
✗
Use an Auto Scaling group to automatically scale the database instance.
Why it's wrong here
Auto Scaling is not supported for SAP HANA.
✗
Add more application servers to distribute the load.
Why it's wrong here
More app servers increase database load.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
Identify which PAS-C01 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.
Technology — This question tests Technology — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Stop the database instance, change to a larger instance type in a different Availability Zone, and use a placement group with the application servers. — Option B is correct. By placing the database instance in a placement group with the application servers, you can ensure low-latency connectivity. Then you can stop the instance, change the instance type to r5.32xlarge if available in another AZ, but since it's not available in current AZ, the best approach is to use a larger instance type in the same family that is available. However, the question states the next larger is r5.32xlarge but not available. So the correct action is to change to an available larger instance in another AZ. But the option B says 'Move to a larger instance in a different AZ with a placement group' which ensures low latency. Option A is wrong because increasing application servers does not reduce database CPU. Option C is wrong because moving to a different instance family may require SAP re-certification. Option D is wrong because using Auto Scaling for database is not supported for SAP HANA.
What should I do if I get this PAS-C01 question wrong?
Identify which PAS-C01 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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