Your company network includes computers that have Windows 7 Enterprise installed. The computers use IP addresses of DNS and WINS servers assigned statically.

The DNS and WINS servers on the company network have been taken offline for upgrades. Users report that they can no longer access the Internet.

You need to provide access to the Internet for the computers during the maintenance.

What should you do?

A.
Change the IP address of the primary WINS to a public name server.

B.
Change the IP address of the default gateway.

C.
Change the IP address of the primary DNS to a public DNS.

D.
Change the client IP address and subnet mask.

Explanation:
DNS does all naming resolution for external (internet) traffic. Normally forwards from your private DNS (used for local behnind the firewall naming resolution) then forwards on to public DNS servers.
As the local DNS server is down all access to local resources via DNS names shouldn’t work – send them to the internet public servers.