What is a component of a virtual private cloud on IBM Cloud?

Explanation

A VPC is a public cloud offering that lets an enterprise establish its own private cloud-like computing environment on shared public cloud infrastructure. You can subdivide a VPC with subnets, where each subnet can reach the public internet through an optional public gateway. You can assign an FIP to any instance to reach it from the internet, or the other way around. This is independent of whether the subnet is attached to a public gateway. Subnets within IBM Cloud VPC offer private connectivity; they can talk to each other over a private link, through the implicit router. Setting up routes isn't necessary.