PAS-C01 Operations and Maintenance Practice Question
An SAP administrator is troubleshooting a performance issue on an SAP HANA database running on an EC2 instance. The instance type is r5.4xlarge with EBS-optimized enabled. CloudWatch metrics show high WriteIOPS but low throughput. Which THREE factors could be causing this behavior? (Choose three.)
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
✓
The SAP HANA database is performing many small write operations.
Options A, B, and C are correct. Small I/O operations cause high IOPS but low throughput (A). Lock contention or thread contention can reduce throughput by causing waiting times (B). EBS volume throughput limits can cap the actual throughput even if IOPS are high (C). Option D is incorrect because EBS optimization is already enabled. Option E is incorrect because a large block size would increase throughput, not cause low throughput.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The SAP HANA database is performing many small write operations.
Why this is correct
Small writes increase IOPS but result in low throughput.
- ✓
The database is experiencing lock contention or thread contention.
Why this is correct
Contention can cause many small I/O operations as threads wait.
- ✓
The EBS volume's throughput limit is lower than the burst credit threshold.
Why this is correct
If throughput limit is low, it can cap overall throughput despite high IOPS.
- ✗
The instance's EBS-optimized feature is not enabled.
Why it's wrong here
The question states EBS-optimized is enabled.
- ✗
The EBS volume is configured with a large block size.
Why it's wrong here
Large block size typically increases throughput per I/O.
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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.