AWS Certified SysOps Administrator – Associate (legacy) — Question 443

Which AWS service offers cost optimization by launching instances automatically only when need-ed?

Answer options

• A. Elastic Load Balancing
• B. Elastic Compute Cloud
• C. Auto Scaling
• D. Relational Database Service

Correct answer: C

Explanation

AWS Auto Scaling monitors applications and automatically adjusts capacity to maintain steady, predictable performance at the lowest possible cost by launching or terminating instances as needed. While Amazon EC2 provides the virtual servers and Elastic Load Balancing distributes the traffic, neither of them automatically manages instance scaling on their own. Amazon RDS is a managed database service and does not handle the automated scaling of application server instances.