What is 'network segmentation' in the context of computer networks?

Network segmentation refers to the practice of dividing a larger computer network into smaller, more manageable sections or segments. This process is crucial for improving the performance and security of the network. By segmenting a network, organizations can isolate different types of traffic, limit access to sensitive information, and reduce the impact of network congestion or security breaches.

This approach enhances network efficiency by containing broadcast traffic within each segment and allows for better resource allocation, as different segments can be optimized for specific tasks. Additionally, identifying network performance issues and administering security policies becomes simpler because each segment can be monitored and managed independently.

The other choices do not accurately define network segmentation. Connecting multiple networks together pertains to bridging or networking concepts rather than segmentation itself. Enhancing network security through encryption focuses on protecting data while it’s in transit, not on the structure of the network. Increasing bandwidth capacity involves upgrading hardware or configurations to allow for more data to flow through the network, which is distinct from the organizational strategy of segmenting the network for improved management.