PAS-C01 Operations and Maintenance Practice Question
A company is running SAP on AWS and needs to reduce the cost of their development and test systems. The systems are only needed during business hours on weekdays. Which AWS service can be used to automatically stop and start the EC2 instances on a schedule?
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
✓
AWS Instance Scheduler
AWS Instance Scheduler is a solution that automatically stops and starts instances based on a schedule. Option B is wrong because Auto Scaling is for scaling, not scheduling. Option C is wrong because CloudWatch Alarms trigger based on metrics, not time-based schedules. Option D is wrong because Systems Manager Maintenance Windows are for patching and maintenance tasks, not scheduling stop/start.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
AWS Instance Scheduler
Why this is correct
AWS Instance Scheduler is a solution that automatically stops and starts instances based on a schedule, making it correct for reducing cost during off-hours.
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Amazon EC2 Auto Scaling
Why it's wrong here
Amazon EC2 Auto Scaling is used for automatically scaling instances based on demand, not for scheduling start/stop times.
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Amazon CloudWatch Alarms
Why it's wrong here
Amazon CloudWatch Alarms trigger actions based on metric thresholds, not time-based schedules, so they cannot be used to automatically stop/start instances on a schedule.
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AWS Systems Manager Maintenance Windows
Why it's wrong here
AWS Systems Manager Maintenance Windows are used to schedule patching and other maintenance tasks, not for stopping/starting instances on a recurring schedule.
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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.