Which of the following best describes network segmentation?

Network segmentation refers to the practice of dividing a larger network into smaller, distinct subnetworks, or segments. This approach is implemented to control traffic flow more effectively and enhance security within the overall network structure. By creating segments, organizations can limit the spread of attacks, reduce congestion, and improve management of network resources.

One of the primary benefits of segmentation is that it helps in isolating sensitive data or critical systems from the rest of the network. For example, a company can segment its billing system from its web servers. This separation ensures that even if the web servers are compromised, attackers would not have easy access to the sensitive billing information.

Additionally, segmentation can simplify compliance with regulatory requirements, as it becomes easier to apply security policies and controls specific to certain segments of the network. This focused approach to security management allows for tailored solutions that fit specific needs within the organization.

In contrast, combining tasks or services into single units, changing IP addresses solely for performance, or combining multiple internet services do not encapsulate the essence of network segmentation and its primary purposes. These alternatives lack the security-focused strategy and traffic management benefits that effective segmentation provides.