What is a VPC?

Think of a VPC as a virtual data centre in the cloud.

Doing this allows our webservers to be exposed to the internet, but sensitive application and database servers are not exposed to the internet

VPC Diagram

Internet Gateway (IGW)/Virtual Private Gateways


Route Table

Network Access Contol Llist (Network ACL)

Security Group (SG)

Subnet (SN)

A subnet, or subnetwork, is a segmented piece of a larger network. ore specifically, subnets are logical partition of an IP network logical partition of an IP network into multiple, smaller network segemments (IPv4 CIDR block)

A routing table is a set of rules, often viewed in table format, that is used to determine where data packets traveling oven an IP network will be directed. All IP-enabled devices, including routers and switches, use routing tables

A route table contains a set of rules, called routes, that are used to determine where network traffic from your subnet is directed.

A network access control list (ACL) is an optional layer of security for your VPC that acts as a firewall for controlling traffic in and out of one or more of your subnets.

What can we do with a VPC

Default VPC vs Custom VPC

Default VPCs have:

VPC Features

VPC Peering

Exam Tips