Cost Control

Question 1

Cost Allocation Tags

Answer 1

• AWS Generated Cost Allocation Tag
• • Automatically applied, start with aws:(createdby)
• • Not applied to resources created before activation
• User tags
• • Starts with user:
• Just appear in Billing Console
• Takes up to 24hrs to appear on reports

Question 2

Trusted Advisor

Answer 2

• Cost Optimization & Recommendations
• Service Limits
• Performance, Security, Fault Tolerance
• Can enable weekly email notification from console

Question 3

Trusted Advisor Full Support Tier

Answer 3

• Business & Enterprise only
• Can set CW alarms when reaching limits
• Programmatic access using AWS Support API

Question 4

Trusted Advisor Good to know

Answer 4

• Can check if S3 bucket is public
• Cannot check if S3 object inside a bucket is public
• • Better use CW event or S3 event or AWS Config
• Monitor limits not change them, contact support for that

Question 5

AWS Service Quotas

Answer 5

• Has programmatic access to change limits

Question 6

CW Event Bus

Answer 6

Sending and Receiving Events between AWS Accounts

Question 7

AWS EC2 Savings Plan

Answer 7

• New pricing model, based on long-term discount
• Commit to spending certain amount over long period, everything above is priced as on demand.
• Must choose instance family and region
• Flexible across size, OS, tenancy
• Same discount as RI

Question 8

AWS Compute Savings Plan

Answer 8

• Can move between instances, regions, compute type (Fargate, EC2, Lambda), os and tenancy
• Same discount as CRI

Question 9

S3 Cost Savings

Answer 9

• Tier based
• S3 Select & Glacier Select: save network and CPU costs
• S3 Lifecycle Rules
• Compress objects
• S3 Requestor pays
• • Save transfer costs, owner still pays storage costs
• • Use S3 bucket policy and requester must use their own account role or user