If you will proxy 8 different applications, you will need ________ proxy programs.

• A. 2
• B. 4
• C. 6
• D. 8

Answer: (D)

Each application's traffic is typically routed through a dedicated proxy instance. Running a separate proxy program for each app provides isolation and allows you to customize filtering, logging, and access controls per app. Therefore, to proxy eight different applications, you would deploy eight proxy programs—one for each application. In practice, you could route multiple apps through one proxy by configuring separate rules, but the straightforward approach given here is eight separate proxies.