PAS-C01 Operations and Maintenance Practice Question
An SAP administrator needs to patch the operating system of SAP application servers that are part of an Auto Scaling group. What is the best practice to ensure that instances are updated without downtime?
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
✓
Create a new launch configuration with an updated AMI and perform a rolling update using the Auto Scaling group.
A rolling update replaces instances gradually, maintaining capacity. Option A is wrong because it does not address replacement. Option C is wrong because it causes downtime. Option D is wrong because it does not apply to running instances.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Update the AMI used by the Auto Scaling group launch configuration and manually terminate all running instances.
Why it's wrong here
Manual termination of all instances causes downtime.
- ✓
Create a new launch configuration with an updated AMI and perform a rolling update using the Auto Scaling group.
Why this is correct
Rolling update replaces instances one by one, maintaining service availability.
- ✗
Update the AMI and stop the Auto Scaling group, then start it again.
Why it's wrong here
Stopping the group terminates instances, causing downtime.
- ✗
Install patches on each running instance using AWS Systems Manager Patch Manager.
Why it's wrong here
Patching instances directly may require reboots and can cause downtime; also instances in Auto Scaling may be replaced.
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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.