What is the primary function of network segmentation?

The primary function of network segmentation is to split a computer network into smaller, manageable sections. This approach improves security, performance, and traffic management by isolating different segments of the network. Each segment can have its own security measures, allowing for tailored controls and policies that suit the specific requirements of that segment.

This isolation means that if a security breach occurs in one segment, it can be contained without affecting the entire network, significantly reducing the risks associated with cyber threats. Additionally, segmentation can help to optimize network performance by limiting broadcast traffic and allowing for more efficient data management within those smaller sections.

The other choices reflect concepts related to networking but do not capture the essence of network segmentation:

• Enhancing wireless connectivity focuses primarily on providing better access for devices, which is not the aim of segmentation.
• Creating redundancy in network connections centers on ensuring availability and resilience, which is a different aspect of network design.
• Eliminating all external connections would isolate the network entirely, contradicting the purpose of segmentation, which is about creating defined sections while maintaining necessary connections.