This PAS-C01 practice question tests your understanding of design of sap workloads on aws. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 running SAP S/4HANA on AWS. They are experiencing high read latency on their EBS volumes used for /usr/sap. Which of the following is the MOST effective way to improve read performance?
Use io2 Block Express volumes with provisioned IOPS.
io2 Block Express provides consistent low latency.
Change the volume type to gp3 with higher throughput.
Why wrong: gp3 is not optimized for low latency.
Move to a larger instance type with more network bandwidth.
Why wrong: Instance size does not directly reduce EBS latency.
Configure RAID 0 across multiple volumes.
Why wrong: RAID0 improves throughput, not latency.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Use io2 Block Express volumes with provisioned IOPS.
The io2 Block Express volume type provides the highest durability and consistent low-latency performance for SAP workloads, with up to 256,000 provisioned IOPS per volume. For /usr/sap, which is sensitive to read latency due to frequent binary and configuration file access, io2 Block Express ensures predictable sub-millisecond latency even under high I/O demand, directly addressing the high read latency issue.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Use io2 Block Express volumes with provisioned IOPS.
Why this is correct
io2 Block Express provides consistent low latency.
Related concept
Read the scenario before looking for a memorised answer.
Change the volume type to gp3 with higher throughput.
Why it's wrong here
gp3 is not optimized for low latency.
Move to a larger instance type with more network bandwidth.
Why it's wrong here
Instance size does not directly reduce EBS latency.
Configure RAID 0 across multiple volumes.
Why it's wrong here
RAID0 improves throughput, not latency.
Common exam traps
The trap here is that candidates often confuse throughput improvements (gp3 or RAID 0) with latency reduction, but the question specifically targets read latency, which requires a volume type designed for consistent low-latency performance like io2 Block Express.
Detailed technical explanation
io2 Block Express volumes leverage a non-volatile memory express (NVMe) interface and a distributed storage architecture to deliver consistent single-digit millisecond latencies. Under the hood, they use a block-level replication and path optimization that minimizes queue depth and I/O wait times, which is critical for SAP's /usr/sap where many small random reads occur during application startup and runtime. In real-world SAP deployments, switching from gp3 or io1 to io2 Block Express has been shown to reduce read latency by up to 60% for such workloads.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
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FAQ
Design of SAP Workloads on AWS — This question tests Design of SAP Workloads on AWS — Read the scenario before looking for a memorised answer..
The correct answer is: Use io2 Block Express volumes with provisioned IOPS. — The io2 Block Express volume type provides the highest durability and consistent low-latency performance for SAP workloads, with up to 256,000 provisioned IOPS per volume. For /usr/sap, which is sensitive to read latency due to frequent binary and configuration file access, io2 Block Express ensures predictable sub-millisecond latency even under high I/O demand, directly addressing the high read latency issue.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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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