Learn about “Right Sizing” in the AWS Certified Cloud Practitioner CLF-C02 exam. Discover how this cost-optimization technique helps match EC2 resources to workload needs for maximum efficiency and savings.
Question
A cloud professional is analyzing the performance and usage of Amazon EC2 instances to deliver recommendations for potential cost savings.
A. Auto Scaling
B. Right Sizing
C. Load Balancing
D. High Availability
Answer
B. Right Sizing
Explanation
Right Sizing is the process of optimizing the performance and cost of your AWS resources by selecting the most appropriate instance type, size, and configuration based on the workload requirements and usage patterns. This can help reduce the over-provisioning or under-utilization of resources.
“Right Sizing” is the correct answer because it refers to the process of analyzing and optimizing AWS resources, particularly Amazon EC2 instances, to ensure they are appropriately sized for their workload. This practice helps reduce costs while maintaining performance and capacity requirements.
Key Points About Right Sizing
- Definition: Right sizing involves matching instance types and sizes to workload performance and capacity needs at the lowest possible cost. It identifies underutilized or over-provisioned resources and adjusts them accordingly.
- Cost Optimization: By scaling down oversized instances or upgrading underperforming ones, organizations can eliminate unnecessary expenses without compromising on performance.
- Performance Data Analysis: Tools like AWS CloudWatch help monitor metrics such as CPU utilization, memory usage, and disk I/O. These insights guide decisions on whether to resize instances up or down.
- Ongoing Process: Right sizing is not a one-time activity but an iterative process that evolves with changing workload demands.
Why Not the Other Options?
A. Auto Scaling: Auto Scaling adjusts the number of instances dynamically based on demand but does not focus on optimizing individual instance sizes or types.
C. Load Balancing: Load Balancing distributes traffic across multiple instances to improve availability and fault tolerance but does not address cost optimization through resource sizing.
D. High Availability: High Availability ensures systems are resilient and operational but is unrelated to cost-saving measures like right sizing.
By implementing right sizing, cloud professionals can achieve significant cost savings while ensuring that workloads run efficiently on AWS infrastructure.
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