PAS-C01 Operations and Maintenance Practice Question
A company runs SAP HANA on an m5.24xlarge EC2 instance. The instance has an EBS-optimized attachment and a high-performance EBS volume for data. The database team reports that write latency to the data volume is consistently above 5 ms during peak hours. Which action would most effectively reduce write latency?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Provision the data volume as an io2 Block Express volume with higher IOPS.
Io2 Block Express volumes are designed for high-performance workloads requiring low latency and high IOPS, which directly addresses the write latency issue. Option B is incorrect because EFA is for HPC and does not affect EBS latency. Option C is incorrect because gp3 volumes have lower performance than io2 for high-write workloads. Option D is incorrect because the m5.24xlarge instance already supports EBS optimization, and enabling it would not reduce latency further.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Provision the data volume as an io2 Block Express volume with higher IOPS.
Why this is correct
io2 Block Express provides sub-millisecond latency and high IOPS, suitable for SAP HANA.
- ✗
Use an Elastic Fabric Adapter (EFA) for storage traffic.
Why it's wrong here
EFA is for inter-instance communication, not EBS storage.
- ✗
Change the data volume type to gp3.
Why it's wrong here
gp3 has lower maximum IOPS and throughput compared to io2 Block Express.
- ✗
Enable EBS optimization on the instance.
Why it's wrong here
m5.24xlarge instances come with EBS optimization enabled by default.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.