What is network segmentation?

Network segmentation is defined as the division of a network into smaller parts in order to enhance security and performance. This practice is crucial in network management, as it helps to isolate traffic, improve load balancing, and limit the spread of potential security threats.

By segmenting a network, organizations can enforce policies and regulations for different segments, leading to better security posture. For instance, sensitive data can be confined to a specific segment, reducing the risk of unauthorized access from other parts of the network. Additionally, segmentation can improve performance by reducing congestion, as local traffic can be contained within segments rather than traversing the entire network.

The incorrect options do not align with the concept of network segmentation, as they imply the opposite actions or lack the intended benefits associated with segmentation. Combining multiple networks into one or creating a monolithic network would typically decrease security and performance, while techniques designed solely to increase network traffic do not address the strategic advantages that segmentation provides.