Configure Domain Name System (DNS) for Active Directory
By —
These questions are based on 70-640 – TS: Windows Server 2008 Active Directory, Configuring
Self Test Software Practice Test
Objective: Configure Domain Name System (DNS) for Active Directory.
Sub-objective: Configure zones.
Single answer, multiple-choice
You are the network administrator for your company. The company's network contains servers that run Windows Server 2008. A server named DNS1 is configured as a Domain Name System (DNS) server on the network to handle name resolution from users. DNS1 contains a primary zone that holds DNS data for network users.
You discover that the primary zone on DNS1 contains entries for computers that no longer exist on the network. What should you do to start scavenging stale resource records immediately?
- Right-click the DNS server node in the DNS Manager snap-in, and click the Set Aging/Scavenging for All Zones option.
- Select the Enable automatic scavenging of stale records option on the Advanced tab in the Properties dialog box of the DNS server.
- Select the Scavenge stale resource records option in the Zone Aging/Scavenging Properties dialog box.
- Right-click the DNS server node in the DNS Manager snap-in, and click the Scavenge Stale Resource Records option.
Answer:
D. Right-click the DNS server node in the DNS Manager snap-in, and click the Scavenge Stale Resource Records option.
Tutorial:
You can start scavenging stale resource records immediately, even if you have not configured the aging and scavenging feature. To do this, you should right-click the DNS server node in the DNS Manager snap-in and click the Scavenge Stale Resource Records option. Aging and scavenging is a feature of DNS that provides a mechanism for performing cleanup and removal of stale records, which can accumulate in zone data over time.
Aging and scavenging of stale records are DNS features that are available when you deploy a DNS server with primary zones. Stale records automatically are added to zones when computers start on the network if you have configured dynamic updates. However, in some cases, they are not automatically removed when computers leave the network. When you configure aging and scavenging, DNS servers can determine that records have aged to the point of becoming stale and remove them from the zone data.
You should not right-click the DNS server node in the DNS Manager snap-in and click the Set Aging/Scavenging for All Zones option because this option is used to configure aging and scavenging for all DNS zones on a DNS server. Clicking the Set Aging/Scavenging for All Zones option does not immediately start the scavenging of stale resource records.
You should not select the Enable automatic scavenging of stale records option on the Advanced tab in the Properties dialog box of the DNS server. This option allows you to enable automatic scavenging of stale records on a DNS server. Selecting the Enable automatic scavenging of stale records option does not immediately start the scavenging of stale resource records.
You should not select the Scavenge stale resource records option in the Zone Aging/Scavenging Properties dialog box. This option is used to configure scavenging settings for a specific DNS zone. Selecting the Scavenge stale resource records option does not immediately start the scavenging of stale resource records.
