A company has computers running Windows 7 Enterprise. The company also has one file server and
two domain name servers running Windows Server 2008 R2. All computers except for one user’s
computer can correctly resolve the IP address of the file server from its host name. The user’s
computer is resolving the file server’s host name to an incorrect IP address. The user’s computer can
access the Internet but cannot access the file server. You need to recommend actions that can be
performed on the user’s computer to resolve the host name of the file server. What should you
recommend? (Choose all that apply.)
A.
Run the ipconfig /flushdns command.
B.
Run the hostname command.
C.
Run the ipconfig /release and ipconfig /renew commands.
D.
Remove the file server’s entry in the HOSTS file.
E.
Run the ipconfig /registerdns command.
This is completely wrong. /registerdns registers the clients name in the dynamic dns. hostname is for getting and setting hostname of local client.
The answers are:
a – the client might have cached an old DNS entry for the server
d – there might be a static entry for the server in the client’s HOSTS file
c is a possible, but quite unlikely. It would be only in the instance where the client is using the wrong DNS server because the DNS server was changed in the DHCP config. It would mean, though, that it still had a working DNS server in the entry, just one with the wrong data. One possible reason is where DHCP was giving and internal and external DNS server (bad practice, but happens), the internal one has moved, and the external one is being used to resolve addresses. There could be a host with an external record and an internal record, for example a web server, where the external record resolves to an address which is not accessible internally. Another possibility is where an active server is in the process of being decommissioned, and holds DNS records which are now out of date. But much less likely than a or d.
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The correct answers I think are:
A. Run the ipconfig /flushdns command.
D. Remove the file server’s entry in the HOSTS file.
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