An IT manager wants to divide the company's IP address space to ensure each department has its dedicated network segment, optimizing network performance and security. What process should the IT manager employ?

Subnetting is the process of dividing a larger IP network into smaller, more manageable subnetworks. It allows each department to have its dedicated network segment, enhancing network performance and security. VLSM (Variable Length Subnet Masking) and CIDR (Classless Inter-Domain Routing) are advanced subnetting techniques. NAT (Network Address Translation) is used for mapping private IP addresses to a single public IP address.