Final answer:
Campus network servers are located in the Application Layer of the networking model.
Step-by-step explanation:
The campus network servers such as web, email, and DHCP are typically located in the Application Layer of the networking model.
The Application Layer is the topmost layer of the OSI model and is responsible for providing services to the end-user applications. It encapsulates data from the lower layers and makes it available to the software applications.
For example, the web server is responsible for hosting websites, the email server handles sending and receiving emails, and the DHCP server assigns IP addresses to devices on the network.