What is a benefit of a 2-Tier design over a 3-Tier?

The benefit of a 2-Tier design over a 3-Tier design that relates to lowering the cost of deployment stems from the reduced complexity and the total number of switches required in a 2-Tier architecture. In a traditional 3-Tier model, you have an additional layer—typically an Aggregation layer—that adds both extra hardware and additional configuration and management overhead. By adopting a 2-Tier design, you eliminate the Aggregation layer, allowing for a more streamlined approach that reduces the number of switches needed for the same network function.

This simplification not only cuts costs associated with purchasing, installing, and maintaining hardware but also results in fewer points of failure, simplifying network management. Overall, the 2-Tier design can provide a more economical and efficient structure, particularly suitable for smaller networks or environments with less demanding traffic patterns.