PAS-C01 Operations and Maintenance Practice Question
A company runs an SAP HANA database on an EC2 instance with a large EBS volume. The operations team receives alerts that the volume's burst balance has dropped to 10%. Which action should be taken to prevent performance degradation?
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
✓
Increase the volume size to increase the baseline IOPS.
Increasing the volume size increases the baseline IOPS and burst balance replenishment rate. Option A is wrong because io2 volumes do not have a burst bucket; they use provisioned IOPS instead and thus do not experience burst balance depletion. Option C is wrong because EBS optimization improves network throughput but does not affect burst balance. Option D is wrong because converting to gp3 changes the volume type but does not directly address the burst balance issue; gp3 volumes have a baseline performance but may still have burst credits if the volume is small, so the correct action to replenish burst balance is to increase volume size.
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 volume type to io2 with provisioned IOPS.
Why it's wrong here
io2 volumes do not have burst balance; they are provisioned with IOPS.
- ✓
Increase the volume size to increase the baseline IOPS.
Why this is correct
Increasing volume size raises baseline IOPS and improves burst balance replenishment.
- ✗
Enable EBS optimization on the instance.
Why it's wrong here
EBS optimization improves network throughput but does not affect burst balance.
- ✗
Convert the volume to gp3.
Why it's wrong here
gp3 volumes do not use burst balance; performance is defined at provisioning.
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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.