Microsoft 70-640 Practice Test Question 1
You have a single Active Directory domain. All domain controllers run Windows Server 2008 and are configured as DNS servers. The domain contains one Active Directory-integrated DNS zone. You need to ensure that outdated DNS records are automatically removed from the DNS zone. What should you do?
A. From the properties of the zone, modify the TTL of the SOA record.
B. From the properties of the zone, enable scavenging.
C. From the command prompt, run ipconfig /flushdns.
D. From the properties of the zone, disable dynamic updates.
Answer: B
Explanation:
To remove the outdated DNS records from the DNS zone automatically, you should enable Scavenging through Zone properties. Scavenging will help you clean up old unused records in DNS. Since "clean up" really means "delete stuff" a good understanding of what you are doing and a healthy respect for "delete stuff" will keep you out of the hot grease. Because deletion is involved there are quite a few safety valves built into scavenging that take a long time to pop. When enabling scavenging, patience is required.
You have a single Active Directory domain. All domain controllers run Windows Server 2008 and are configured as DNS servers. The domain contains one Active Directory-integrated DNS zone. You need to ensure that outdated DNS records are automatically removed from the DNS zone. What should you do?
A. From the properties of the zone, modify the TTL of the SOA record.
B. From the properties of the zone, enable scavenging.
C. From the command prompt, run ipconfig /flushdns.
D. From the properties of the zone, disable dynamic updates.
Answer: B
Explanation:
To remove the outdated DNS records from the DNS zone automatically, you should enable Scavenging through Zone properties. Scavenging will help you clean up old unused records in DNS. Since "clean up" really means "delete stuff" a good understanding of what you are doing and a healthy respect for "delete stuff" will keep you out of the hot grease. Because deletion is involved there are quite a few safety valves built into scavenging that take a long time to pop. When enabling scavenging, patience is required.
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