What does a subnet represent?

A subnet, or subnetwork, represents a smaller network within a larger network. This segmentation allows for more efficient management of IP addresses and improves network performance by reducing congestion. By dividing a larger network into subnets, administrators can isolate and control traffic, improve security, and optimize resource allocation.

Subnets enable different segments of a network to communicate with each other while still being part of a broader communication structure. This is particularly useful in large organizations where different departments may require separate networking environments but need to communicate with one another as needed. By using subnetting, network design can achieve a balanced load and enforce policies specific to each subnet, effectively making management and troubleshooting easier.

The other options do not accurately define a subnet. For instance, a group of network protocols refers to various rules and standards governing network communications, while encryption methods are techniques used to secure data. A storage facility for data pertains to physical or cloud storage solutions, which are completely separate concepts from subnetting.