Your network contains an Active Directory forest named contoso.com. Users frequently access the website of an external partner company.

The URL of the website is http://

partners.adatum.com.

The partner company informs you that it will perform maintenance on its Web server and that the IP addresses of the Web server will change.

After the change is complete, the users on your internal network report that they fail to

access the website.

However, some users who work from home report that they can access the website.

You need to ensure that your DNS servers can resolve partners.adatum.com to the correct IP address immediately.

What should you do?

A. Run

dnscmd

and spe

cify the

CacheLockingPercent

parameter.

B. Run

Set-DnsServerGlobalQueryBlockList

.

C. Run

ipconfig

and specify the

Renew

parameter.

D. Run

Set-DnsServerCache

.