Discover which actions help right-size AWS resources for cost optimization in the AWS Certified Cloud Practitioner CLF-C02 exam. Learn about EC2 instance selection and S3 lifecycle policies to manage cloud expenses effectively.
Table of Contents
Question
Which actions are examples of a company’s effort to right-size their AWS resources to control cloud costs? (Select TWO.)
A. Switching from Amazon RDS to Amazon DynamoDB.
B. Selecting Amazon EC2 instance types based on previous utilization patterns.
C. Using Amazon S3 lifecycle policies to move infrequently accessed objects to lower-cost storage tiers.
D. Using Multi-AZ deployments for Amazon RDS.
E. Replacing existing Amazon EC2 instances with AWS Elastic Beanstalk.
Answer
B. Selecting Amazon EC2 instance types based on previous utilization patterns.
C. Using Amazon S3 lifecycle policies to move infrequently accessed objects to lower-cost storage tiers.
Right-sizing AWS resources is a key strategy for controlling cloud costs. It involves aligning resource allocation with actual workload requirements to eliminate waste and enhance efficiency. Among the given options, B and C are correct because they directly contribute to cost optimization through right-sizing practices.
Explanation
Selecting EC2 instance types based on past utilization and using S3 lifecycle policies to reduce costs are cost optimization strategies.
B. Selecting Amazon EC2 instance types based on previous utilization patterns
This action embodies the concept of right-sizing by analyzing past usage data to select the most appropriate EC2 instance type and size. AWS offers tools like AWS Compute Optimizer and Cost Explorer to help identify underutilized or overprovisioned instances. Adjusting instance types ensures that workloads run efficiently without incurring unnecessary costs.
C. Using Amazon S3 lifecycle policies to move infrequently accessed objects to lower-cost storage tiers
Implementing S3 lifecycle policies is another example of cost optimization. These policies automatically transition data to more cost-effective storage classes (e.g., S3 Standard-IA, S3 Glacier) as access frequency decreases, reducing storage expenses while retaining data accessibility when needed35.
Why Other Options Are Incorrect
A. Switching from Amazon RDS to Amazon DynamoDB
While this might optimize performance or scalability, it is not inherently a right-sizing action aimed at controlling costs. The decision to switch databases depends on the application’s requirements rather than cost optimization alone.
D. Using Multi-AZ deployments for Amazon RDS
Multi-AZ deployments enhance availability and fault tolerance but do not reduce costs. In fact, they can increase costs due to the additional resources required.
E. Replacing existing Amazon EC2 instances with AWS Elastic Beanstalk
Elastic Beanstalk simplifies application deployment but does not directly address right-sizing or cost control. It focuses more on operational efficiency rather than resource optimization.
Key Takeaways
- Right-sizing involves continuously analyzing resource usage and adapting configurations to meet workload demands without overspending.
- Tools like AWS Compute Optimizer, Cost Explorer, and S3 lifecycle management are instrumental in identifying opportunities for cost savings.
- Understanding these principles is crucial for passing the AWS Certified Cloud Practitioner CLF-C02 exam and managing real-world cloud environments effectively.
By focusing on these strategies, you can ensure efficient resource utilization while minimizing unnecessary expenses in your AWS environment.
Amazon AWS Certified Cloud Practitioner CLF-C02 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Amazon AWS Certified Cloud Practitioner CLF-C02 exam and earn Amazon AWS Certified Cloud Practitioner CLF-C02 certification.