Cisco NE Module 7 - Routing between Networks

Question 1

The need for routing

How do we divide a network into smaller pieces?

Answer 1

We can add routers.
Routers can break up one network into several, giving all interfaces new IP addresses, stopping traffic flow, etc.

Question 2

The need for routing

Why would we divide a network?

Answer 2

For security, smaller broadcasting domains, and maybe even to move departments to different physical locations.