VPC Networking Costs

Question 1

What are the exam tips for VPC Networking costs?

Answer 1

1. Use private IP addresses over public IP addresses to save on costs. This then uses the AWS backbone network.
2. If you want to cut all network costs, group your EC2 instances in the same AZ and use private IP addresses. This will be cost free, but make sure to keep in mind single point of failure issues.