Your network contains two DNS servers named Server1 and Server2 that run Windows
Server 2012 R2. Server1 hosts a primary zone for contoso.com. Server2 hosts a secondary
zone for contoso.com.
You need to ensure that Server2 replicates changes to the contoso.com zone every five
minutes.
Which setting should you modify in the start of authority (SOA) record?
A.
Retry interval
B.
Expires after
C.
Minimum (default) TTL
D.
Refresh interval
Explanation:
By default, the refresh interval for each zone is set to 15 minutes. The refresh interval is
used to determine how often other DNS servers that load and host the zone must attempt to
renew the zone.
D. Refresh interval
By default, the refresh interval for each zone is set to 15 minutes. The refresh interval is used to determine how often other DNS servers that load and host the zone must attempt to renew the zone.
Expires After The period of time for which zone information is valid on the secondary server. If the secondary server can’t download data from a primary server within this period, the secondary server lets the data in its cache expire and stops responding to DNS queries. Setting Expires After to seven days allows the data on a secondary server to be valid for seven days.
the answer is B