PAS-C01 Operations and Maintenance Practice Question
A company runs an SAP HANA database on an EC2 instance with a large EBS volume. The volume is approaching its maximum capacity. The operations team needs to increase the storage size without downtime. What is the most efficient way to achieve this?
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
✓
Use the AWS Management Console, CLI, or API to modify the existing EBS volume to increase its size while the instance is running.
AWS allows you to modify EBS volumes (including increasing size) while they are attached and in use, without downtime. Option B is wrong because using rsync to copy data would require downtime for consistency and is less efficient. Option C is wrong because it requires stopping the instance. Option D is wrong because it adds complexity and cost without being the most efficient method.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use the AWS Management Console, CLI, or API to modify the existing EBS volume to increase its size while the instance is running.
Why this is correct
EBS volumes can be modified online without downtime.
- ✗
Create a new larger EBS volume and use rsync to copy data while the instance is running, then remount.
Why it's wrong here
This requires downtime to remount and may cause data inconsistency.
- ✗
Stop the EC2 instance, detach the current EBS volume, create a new larger volume from a snapshot, attach it, and start the instance.
Why it's wrong here
This requires stopping the instance, causing downtime.
- ✗
Add an additional EBS volume and use LVM to extend the logical volume.
Why it's wrong here
This adds complexity and may require application changes; not the most efficient if the goal is simply to increase size of existing volume.
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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.