Microsoft 70-411 Exam – Q61

Your company has a main office and a branch office. The network contains an Active Directory domain named contoso.com. The main office contains a domain controller named DC1 that runs Windows Server 2012 R2. DC1 is a DNS server and hosts a primary zone for contoso.com. The branch office contains a member server named Server1 that runs Windows Server 2012 R2. Server1 is a DNS server and hosts a secondary zone for contoso.com.

The main office connects to the branch office by using an unreliable WAN link. You need to ensure that Server1 can resolve names in contoso.com if the WAN link in unavailable for three days.

Which setting should you modify in the start of authority (SOA) record?

A. Retry interval
B. Refresh interval
C. Expires after
D. Minimum (default) TTL

Correct Answer: C

Explanation:
Other DNS servers that are configured to load and host the zone use the expire interval to determine when zone data expires if it is not successfully transferred. By default, the expire interval for each zone is set to one day.

To adjust the expire interval 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, verify that the zone type is either Primary or Active Directory-integrated.
4. Click the Start of Authority (SOA) tab.
5. In Expires after, click a time period in minutes, hours, or days, and then type a number in the text box.
6. Click OK to save the adjusted interval.