The correct action is to modify the EBS volume size while the instance is running. This is supported because Amazon EBS allows you to increase volume size dynamically for most volume types, including gp2, gp3, and io1, without requiring an instance stop or reboot, making it ideal for SAP HANA environments where uptime is critical. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this scenario tests your understanding of EBS elasticity and the specific constraints of SAP HANA workloads—a common trap is assuming you must stop the EC2 instance or migrate data to a new volume, both of which introduce unnecessary downtime. Remember the key principle: for SAP HANA data volumes, you can resize online, but you must then extend the file system and logical volume manager (LVM) while the database is still running. A helpful memory tip is “Resize, then resize again”—first the EBS volume, then the OS-level partition and filesystem, all without downtime.
PAS-C01 Operations and Maintenance Practice Question
This PAS-C01 practice question tests your understanding of operations and maintenance. 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.
Refer to the exhibit. An SAP HANA instance is running on an EC2 instance. The volume `/dev/sdf` is used for HANA data. The operations team needs to increase the disk size for HANA data without downtime. Which action should they take?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Modify the EBS volume size while the instance is running.
Option B is correct. Modifying the EBS volume size while the instance is running is supported for most volume types. Option A is wrong because stopping the instance is unnecessary. Option C is wrong because launching a new instance would require migration. Option D is wrong because adding a new volume and moving data requires downtime.
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.
✗
Launch a new instance with a larger volume and migrate HANA data.
Why it's wrong here
This causes downtime and is more complex.
✗
Stop the instance, modify the volume size, and start the instance.
Why it's wrong here
Stopping the instance causes downtime, which is not required.
✗
Add a new EBS volume to the instance and move HANA data to the new volume.
Why it's wrong here
Adding a new volume requires moving data, which may cause downtime.
✓
Modify the EBS volume size while the instance is running.
Why this is correct
EBS volumes can be modified without detaching or stopping the instance.
Related concept
Read the scenario before looking for a memorised answer.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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.
Operations and Maintenance — This question tests Operations and Maintenance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Modify the EBS volume size while the instance is running. — Option B is correct. Modifying the EBS volume size while the instance is running is supported for most volume types. Option A is wrong because stopping the instance is unnecessary. Option C is wrong because launching a new instance would require migration. Option D is wrong because adding a new volume and moving data requires downtime.
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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