Subnets

• Allows you to split your network inside the VPC.

• You have it within your VPC.

• Public subnet - Accessible from the internet; put the resources you want to be public in here, e.g. EC2 instances.

• Private subnet - Not accessible from the internet; put the resources you want to be private in here, e.g. databases.

• Route table - Define where network traffic is directed.

• Attached to an availability zone.