What is the main goal of network segmentation?

The main goal of network segmentation is to split a larger network into smaller, more manageable networks. This practice allows for improved security and performance within each segment. By isolating different parts of the network, administrators can contain potential breaches, ensuring that if one segment is compromised, the threat does not automatically spread to the others. Additionally, segmentation can optimize traffic flow, as each smaller network can have tailored configurations that better meet specific requirements or workloads.

The other choices, while beneficial in certain contexts, do not capture the primary intent of network segmentation effectively. Enhancing data encryption is important but is a separate focus that may or may not be related to how a network is segmented. Reducing network traffic congestion can be a byproduct of segmentation but is not the main goal, and increasing internet connection speeds relates more to bandwidth management rather than segmentation itself. Thus, the focus on creating smaller, isolated networks illustrates the core purpose of this strategy in network defense and management.