The correct answer is to increase the size of the second volume (/dev/xvdb) to 300 GB. This is because, in standard SAP on AWS deployments, the /usr/sap directory is typically mounted on a dedicated secondary Amazon EBS volume, not the root volume, to isolate application binaries and logs from the operating system. The provided CloudFormation template allocates only 200 GB for this secondary volume, which falls short of the 300 GB minimum requirement for /usr/sap, making a size increase the most direct and efficient fix. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this scenario tests your understanding of SAP volume architecture and CloudFormation resource modification, often appearing as a trap where candidates mistakenly try to resize the root volume or add a third volume instead of adjusting the existing dedicated mount. A useful memory tip is to remember that /usr/sap is always a separate, sizable volume—think "SAP Separate, Size Up."
PAS-C01 Migration Practice Question
This PAS-C01 practice question tests your understanding of migration. 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 an SAP application server to AWS using CloudFormation. The template snippet is shown in the exhibit. The SAP application requires at least 300 GB of disk space for /usr/sap. Which change should be made to the template?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "least"
Why it matters: You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Increase the size of the second volume (/dev/xvdb) to 300 GB.
The SAP application server typically needs a large disk for /usr/sap. The template currently has a 100 GB root volume and a 200 GB additional volume, total 300 GB. However, /usr/sap is usually mounted on a separate volume. The 200 GB volume is likely for /usr/sap, but 200 GB may not be enough if the requirement is at least 300 GB. The correct action is to increase the second volume size to at least 300 GB. Increasing root volume or adding a third volume are alternatives but less direct.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Change the instance type to a larger size to provide more instance storage.
Why it's wrong here
Instance storage is ephemeral and not suitable for SAP data.
✗
Increase the root volume (/dev/xvda) size to 300 GB.
Why it's wrong here
/usr/sap is typically on a separate volume.
✓
Increase the size of the second volume (/dev/xvdb) to 300 GB.
Why this is correct
The second volume is likely for /usr/sap; increase to 300 GB.
Clue confirmation
The clue word "least" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
Add a third EBS volume of 100 GB for /usr/sap.
Why it's wrong here
Could work but less efficient than increasing existing volume.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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 the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PAS-C01 NAT questions on configuration and troubleshooting.
Migration — This question tests Migration — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Increase the size of the second volume (/dev/xvdb) to 300 GB. — The SAP application server typically needs a large disk for /usr/sap. The template currently has a 100 GB root volume and a 200 GB additional volume, total 300 GB. However, /usr/sap is usually mounted on a separate volume. The 200 GB volume is likely for /usr/sap, but 200 GB may not be enough if the requirement is at least 300 GB. The correct action is to increase the second volume size to at least 300 GB. Increasing root volume or adding a third volume are alternatives but less direct.
What should I do if I get this PAS-C01 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PAS-C01 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "least". You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
About these practice questions
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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. The exhibit shows a CloudFormation template snippet. During migration, the SAP application server fails to start because the root volume is too small. What is the most efficient fix?
easy
A.Manually resize the EBS volume via the AWS Console and then update the stack.
✓ B.Modify the template to increase VolumeSize to 100 and update the stack.
C.Stop the instance, modify the volume size, and start the instance.
D.Delete the stack and create a new one with a larger volume.
Why B: Option B is correct because modifying the template to increase the volume size and updating the stack is the proper Infrastructure as Code approach. Option A is wrong because modifying the volume directly is not recommended for CloudFormation-managed resources. Option C is wrong because stopping the instance is not necessary for volume modification, but the template should be updated. Option D is wrong because deleting and recreating is less efficient.
Last reviewed: Jun 20, 2026
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This PAS-C01 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 PAS-C01 exam.
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