You work as the network administrator at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. Domain.com has its headquarters located in London and branch office located in Paris. All servers on the Domain.com network run Windows Server 2008 and all client computers run Windows Vista.
During the course of the day you receive instruction from Domain.com to troubleshoot an error reported by a network user named Rory Allen who states the client computer appears to contain 29
outdated DNS data. You later decided to use the ipconfig command line utility to view what DNS servers the client is using when pinging to confirm connectivity to those server.
What should you do?

A.
You should consider having the dns /register command run at the command prompt.

B.
You should consider having the ipconfig /flushdns command run at the command prompt.

C.
You should consider having the ipconfig /cleardns command run at the command prompt.

D.
You should consider having the nslookup /flushdns command run at the command prompt.

Explanation:
The command ipconfig / flushdns clears up the local DNS cache.