Question 4 of 1 0
1 _ This question includes an image that provides information to help you answer the question.
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The image shows the current scavenging settings for the eastsim.com domain. Host (A) records within the
zone are configured to refresh themselves every 7 days.
You notice that sometimes a host record will be removed from the database, even though the host still exists
on the network. You need to make sure that records are only removed when the host no longer exists.
What should you do?
0 Decrease the refresh interval setting.
0 Decrease the no-refresh interval setting.
0 Increase the no-refresh interval setting.
@ Increase the refresh interval setting.
Explanation
You need to increase the refresh interval setting. This value should be set equal to or higher than the refresh interval
configured for individual records in the zone. The problem occurs because after 9 days the no-refresh interval expires.
The host then has 3 days to refresh the record, as specified by the refresh interval. Because the host will only attempt to
refresh the record every 7 days, it is possible that the refresh interval will expire before the host attempts its next refresh.
Increasing the refresh interval to 7 days or longer resolves the problem.
Increasing the no-refresh interval will only prevent record refreshes from being accepted more frequently. Decreasing
the refresh interval would make the problem worse, as more and more records would expire before they were refreshed.
Objectives
Objectives for MS 70-41 0:
403 Deploy and configure DNS service
References
LabSim for Windows Server Pro: Install and Configure, Section 5.5.
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