AWS Certified Solutions Architect – Associate (SAA-C02) — Question 129

A company has a website running on Amazon EC2 instances across two Availability Zones. The company is expecting spikes in traffic on specific holidays, and wants to provide a consistent user experience. How can a solutions architect meet this requirement?

Answer options

• A. Use step scaling.
• B. Use simple scaling.
• C. Use lifecycle hooks.
• D. Use scheduled scaling.

Correct answer: D

Explanation

Scheduled scaling allows the company to automatically adjust the number of EC2 instances based on anticipated traffic patterns during specific holidays, ensuring a consistent user experience. Step scaling and simple scaling react to metrics rather than pre-planned events, while lifecycle hooks are used for managing instance state transitions and do not directly address scaling needs.