Network Discovery is a process used in computer networks to identify devices and services available on a network. It helps administrators understand what devices are connected, their IP addresses, and the services they offer. This information is crucial for managing network resources and ensuring security. There are various methods for Network Discovery, including ping sweeps, port scanning, and using protocols like Simple Network Management Protocol (SNMP). These techniques allow network administrators to map out the network, troubleshoot issues, and optimize performance by ensuring all devices are functioning correctly and securely.