Your network contains an Active Directory domain named contoso.com.
The properties of the contoso.com DNS zone are configured as shown in the exhibit. (Click
the Exhibit button.)
You need to update the Host (A) record for a domain controller in the domain.
What should you do?
A.
Restart the Netlogon service.
B.Restart the DNS Client service.
C.Run sc.exe and specify the triggerinfo parameter.
D.Run ipconfig.exe and specify the /registerdns parameter.
d
IS A
Active Directory supports dynamic registration of domain controller addresses in DNS. After Active Directory has been installed during domain controller creation, the Net Logon service dynamically creates records in the DNS database that are used to locate the server.
https://technet.microsoft.com/en-us/library/cc978020.aspx
While restarting the Netlogon service could well do this… It would also interfere with many other operations that the domain looks after.
Therefore the “Microsoft” answer is most likely going to be:
“D” – ipconfig / registerdns
https://technet.microsoft.com/en-nz/library/cc780467(v=ws.10).aspx
“The ipconfig /registerdns command provides you with a means to manually initiate dynamic registration for the DNS names and IP addresses configured at a computer. This option can assist in troubleshooting a failed DNS name registration or in resolving a dynamic update problem between a client and the DNS server without restarting the client.”