Quiz: Module 15: Cost Optimization

Which AWS tool analyzes your historical usage patterns and recommends Savings Plans or Reserved Instances that would reduce your compute costs?

A company runs 10 EC2 instances of type `m5.xlarge` 24/7 for a production workload. The workload is stable and predictable, and the company plans to run it for at least the next three years. Which pricing approach would provide the largest cost savings compared to on-demand pricing?

A startup's AWS bill has increased 40% over the past three months. The team does not know which services or projects are driving the increase. Which TWO actions should the team take first to diagnose the cost increase? (Select TWO.)Select multiple

AWS Compute Optimizer reports that an EC2 instance of type `m5.2xlarge` (8 vCPUs, 32 GB RAM) is "over-provisioned." CloudWatch metrics show the instance averages 12% CPU utilization and 8 GB memory usage over the past 30 days. Which action should the team take?

Which S3 storage class is the most cost-effective for data that is accessed approximately once per quarter and must be retrievable within 12 hours?

A solutions architect is choosing between Compute Savings Plans and EC2 Instance Savings Plans for a company that runs a mix of EC2, Fargate, and Lambda workloads. The company expects to change instance types as new generations become available and may shift some workloads between Regions. Which plan type should the architect recommend, and why?

A team sets up an AWS Budget with a $1,000 monthly threshold and email alerts at 80% and 100%. On the 15th of the month, they receive the 80% alert ($800 spent). By the time they investigate, spending has already reached $1,100. What should the team do differently to prevent budget overruns in the future?