Cost optimization pillar in AWS - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the main goal of the Cost Optimization pillar in cloud architecture?

The main goal is to use cloud resources efficiently to reduce costs while maintaining performance and reliability.

beginner

Name one common strategy to reduce cloud costs.

One common strategy is to use reserved instances or savings plans to get discounts for long-term usage.

beginner

Why is monitoring cloud usage important for cost optimization?

Monitoring helps identify unused or underused resources so you can stop or resize them to save money.

intermediate

What does 'right-sizing' mean in the context of cost optimization?

Right-sizing means choosing the right size and type of cloud resources to match your actual needs without overspending.

intermediate

How can automation help with cost optimization?

Automation can turn off resources when not needed and scale resources automatically to avoid paying for unused capacity.

Which AWS service helps track and analyze your cloud spending?

A Amazon EC2

B Amazon S3

C AWS Cost Explorer

D AWS Lambda

AWS Cost Explorer provides tools to visualize and manage your AWS costs and usage.

What is a benefit of using reserved instances in AWS?

A Unlimited storage

B Lower cost for long-term usage

C Automatic backups

D Faster network speed

Reserved instances offer significant discounts compared to on-demand pricing when you commit to use for a period.

What does 'right-sizing' help prevent?

A Security breaches

B Data loss

C Slow internet

D Overpaying for resources you don't need

Right-sizing ensures you only pay for the resources that fit your actual workload.

Which action can reduce costs by stopping resources when not in use?

A Automation

B Manual backups

C Increasing storage

D Adding more users

Automation can schedule stopping or scaling down resources to save money during idle times.

Why should you regularly review your cloud usage?

A To find and remove unused resources

B To increase costs

C To add more users

D To slow down performance

Regular reviews help identify resources that are no longer needed, reducing unnecessary spending.

Explain the key strategies used in the Cost Optimization pillar to reduce cloud expenses.

Think about how to avoid paying for unused or oversized resources.

Describe how automation can help maintain cost efficiency in cloud environments.

Consider how machines can manage resources better than humans for cost savings.