Palo Alto Networks (PANW) System Engineer (PSE) Practice Exam

Logical segmentation can be achieved using:

1. User-ID

2. Subnets

3. Timestamps

4. App-ID

The correct answer is: Subnets

Logical segmentation in a network context refers to the practice of dividing a network into distinct segments that can operate independently while still allowing for efficient management and communication. Subnets are a foundational method for achieving this segmentation. By using subnets, network administrators can isolate different network segments based on their IP address ranges, thereby controlling traffic flow, enhancing security, and improving performance. When subnets are employed, devices within each subnet can communicate with each other directly, while communication between subnets is regulated through routing rules and access control lists. This approach not only allows for better traffic management but also enhances security measures by creating clear boundaries between different network sections. For example, sensitive data can be kept in a separate subnet that has stricter access controls compared to less sensitive areas of the network. In contrast, other methods like User-ID, Timestamps, and App-ID do not fundamentally create separate network segments. User-ID is focused on identity-based policy applications, Timestamps do not contribute to segmentation, and App-ID pertains to identifying applications within traffic rather than creating logical network boundaries. Therefore, subnetting stands out as the most effective and widely used technique for logical segmentation in a network environment.