A network administrator recently installed a web proxy server at a customer’s site. The following
week, a system administrator replaced the DNS server overnight. The next day, customers began
having issues accessing public websites. Which of the following will resolve the issue?

A.
Update the DNS server with the proxy server information.

B.
Implement a split horizon DNS server.

C.
Reboot the web proxy and then reboot the DNS server.

D.
Put the proxy server on the other side of the demarc.

Explanation: