You have an Active Directory domainnamed contoso.com.
You have a domain controllernamed Server1that is configured as a DNS server.
Server1 hosts a standard primary zonefor contoso.com.
The DNS configurationof Server1is shown below:
You discover that stale resource records are not automatically removed from the contoso.com zone.
You need to ensure that the stale resource records are automatically removed from the contoso.com
zone.
What should you do?
A.
Set the scavenging period of Server1 to 0 days.
B.
Modify the Server Aging/Scavenging properties.
C.
Configure the aging properties for the contoso.com zone.
D.
Convert the contoso.com zone to an Active Directory-integrated zone.
Explanation:
http://technet.microsoft.com/en-us/library/cc816625%28v=ws.10%29.aspx
Set Aging and Scavenging Properties for a Zone
The DNS Server service supports aging and scavenging features. These features are provided as a
mechanism for performing cleanup and removal of stale resource records, which can accumulate in zone data
over time.
You can use this procedure to set the aging and scavenging properties for a specific zone using eitherthe DNS
Manager snap-in or the dnscmd command-line tool.
To set aging and scavenging properties for a zone using the Windows interface
1. Open DNS Manager. To open DNS Manager, click Start, point to Administrative Tools, and then click
DNS.
2. In the console tree, right-click the applicable zone, and then click Properties.
3. On the General tab, click Aging.
4. Select the Scavenge stale resource records check box.
5. Modify other aging and scavenging properties as needed.
To set aging and scavenging properties for a zone using a command line
1. Open a command prompt. To open an elevated Command Prompt window, click Start, point to All
Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.
2. At the command prompt, type the following command, and then press ENTER:
dnscmd <ServerName> /Config <ZoneName> {/Aging <Value>|/RefreshInterval <Value>|/
NoRefreshInterval <Value>}
