Your company leases a very fast internet connection and pays for it based on usage. you have been asked by the company president to reduce internet line lease costs. you want to reduce the amount of web pages that are downloaded over the leased connection without decreasing performance.
what is the best way to do this?

a. install modems in employees' computers
b. implement nat
c. install a proxy server
d. install a packet-filtering firewall

c. Install a proxy server

Explanation:

In computing a proxy server is implemented as a middle 'man' between the user and the internet. It will hence behave as a gateway that will seperate users from the websites that they browse. The major importance of a proxy server is enforcing security, however it can also act as a web filter allowing organizations to restrict access to certain websites. So when an organization or a school wishes to prevent access to certain sites a proxy server will be implemented, in the question scenario this web filter feature can be used to save cost associated with visiting sites not relevant to the organization's objectives