Right-sizing resources in AWS - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does 'right-sizing resources' mean in cloud computing?

Right-sizing resources means choosing the correct size and type of cloud resources to match your workload needs. It avoids paying for too much or too little capacity.

beginner

Why is right-sizing important for AWS EC2 instances?

Right-sizing AWS EC2 instances helps reduce costs by avoiding over-provisioning and improves performance by ensuring resources fit the workload demand.

intermediate

Name two AWS tools that help with right-sizing resources.

AWS Cost Explorer and AWS Compute Optimizer help analyze usage and recommend better resource sizes.

beginner

What can happen if you under-size your cloud resources?

Under-sizing can cause slow performance, application errors, and poor user experience because resources are insufficient for the workload.

intermediate

How often should you review your cloud resource sizes?

Regular reviews, such as monthly or quarterly, help adjust resources as workloads change and keep costs optimized.

What is the main goal of right-sizing cloud resources?

A To always use the largest resource available

B To match resource capacity to workload needs

C To minimize security settings

D To increase cloud spending

Right-sizing aims to match resource capacity to workload needs to optimize cost and performance.

Which AWS service provides recommendations for right-sizing EC2 instances?

A AWS Compute Optimizer

B AWS CloudTrail

C Amazon S3

D AWS Lambda

AWS Compute Optimizer analyzes usage and recommends optimal EC2 instance sizes.

What is a risk of over-provisioning cloud resources?

A Data loss

B Application crashes

C Security breaches

D Higher costs without performance benefit

Over-provisioning leads to paying for unused capacity, increasing costs unnecessarily.

How often should you check your resource usage for right-sizing?

A Once a year

B Never

C Regularly, such as monthly or quarterly

D Only when problems occur

Regular reviews help keep resources aligned with changing workloads and costs optimized.

Which AWS tool helps visualize cost and usage data to support right-sizing?

A AWS Cost Explorer

B AWS IAM

C Amazon RDS

D AWS CloudFormation

AWS Cost Explorer provides charts and reports to analyze cost and usage patterns.

Explain what right-sizing resources means and why it matters in AWS cloud environments.

Think about paying only for what you need and avoiding waste.

Describe how AWS Compute Optimizer and AWS Cost Explorer help with right-sizing.

One tool suggests changes, the other shows spending patterns.