AWS Cost Management Flashcards

What is the difference between an All Upfront and No Upfront Reserved Instance?

Answer: All Upfront pays everything at purchase for the largest discount; No Upfront pays monthly with a smaller discount

All Upfront pays the full cost at purchase for the deepest discount, while No Upfront spreads payments with a smaller discount.

Which feature of Reserved Instances allows changing instance size within the same family while keeping the discount?

Answer: Regional benefit / instance size flexibility

Regional RIs provide instance size flexibility so the discount applies across sizes in the same family.

What does AWS Compute Optimizer primarily recommend?

Answer: Optimal instance types and sizes based on utilization metrics

Compute Optimizer analyzes utilization to recommend right-sized EC2, EBS, Lambda, and ASG configurations.

Which S3 feature automatically moves objects to cheaper storage tiers based on access patterns with no retrieval fees?

Answer: S3 Intelligent-Tiering

S3 Intelligent-Tiering moves data between access tiers automatically without retrieval charges.

A team wants to prevent a single account from spending beyond a limit. Which combination is most appropriate?

Answer: AWS Budgets with a budget action to apply an IAM/SCP restriction

Budget actions can automatically apply IAM or SCP controls when a budget threshold is breached.

Which pricing model is best for steady-state, predictable workloads running continuously for a year or more?

Answer: Reserved Instances or Savings Plans

Reserved Instances and Savings Plans deliver the best value for predictable, long-running workloads.

What is the benefit of using AWS Cost Categories?

Answer: They group costs into custom buckets using rules for chargeback and reporting

Cost Categories let you group costs into meaningful, rule-based buckets for organized reporting and chargeback.