SOA-C02 Question 125
Select 3Your company is hosting an e-commerce website on AWS. The website's traffic significantly increases during holiday seasons, requiring the infrastructure to scale dynamically. You have been asked to provision and maintain resources that can handle this traffic pattern while optimizing cost. Which of the following actions should you take to meet these requirements?
- A
Configure an Auto Scaling group for the application servers with appropriate scaling policies.
- B
Use Amazon EC2 Reserved Instances to handle traffic spikes during holidays.
- C
Deploy the application on AWS Lambda and use API Gateway to manage requests.
- D
Enable Amazon RDS Multi-AZ deployment for the database to improve availability.
- E
Set up Amazon CloudFront to cache static content and reduce load on origin servers.
Show answer and explanation
Correct answers: A, C, E
Explanation
To handle dynamic traffic patterns while optimizing costs, it is essential to use scalable and cost-effective solutions. Auto Scaling groups allow the application servers to scale based on demand, ensuring sufficient resources during traffic spikes. Deploying the application on AWS Lambda with API Gateway provides a serverless architecture, which automatically scales and reduces costs for infrequent or unpredictable traffic. Amazon CloudFront helps reduce the load on origin servers by caching static content at edge locations, enhancing both performance and scalability.
- A. Correct.
Correct. Configuring an Auto Scaling group ensures that the application servers can dynamically scale based on demand, which is essential to handle traffic spikes during holiday seasons.
- B. Incorrect.
Incorrect. Reserved Instances are cost-effective for predictable, steady workloads but are not ideal for handling unpredictable traffic spikes. Spot Instances or Auto Scaling are better suited for this scenario.
- C. Correct.
Correct. Deploying the application on AWS Lambda and using API Gateway allows for serverless scaling, making it an efficient and cost-optimized solution for handling variable traffic.
- D. Incorrect.
Incorrect. While enabling Amazon RDS Multi-AZ improves database availability, it does not directly address the need to dynamically scale infrastructure for handling increased traffic.
- E. Correct.
Correct. Setting up Amazon CloudFront reduces the load on origin servers by caching content at edge locations, thereby improving performance and scalability during high-traffic periods.