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 the performance.
install modems in employees' computers
implement nat
install a proxy server
install a packet-filtering firewall

Install a proxy server

Explanation: A proxy server is the server that is established as the interface between the large scale network and the low scale network.It helps in the provision of the protection and better performance.

This server creates a division between the user and the website browsed by them .The traffic on the servers thus flow through proxy servers as the web pages downloads .Therefore, without the decrement of the protection and reduction in webpage download, proxy servers should be installed.