单项选择题
Your company has an Active Directory domain named contoso.com. The company network has two DNS servers named DNS1 and DNS2.
The DNS servers are configured as shown in the following table： DNS1 DNS2
_msdcs.contoso.com contoso.com .（root）
_msdcs.contoso.com contoso.com
Domain users， who are configured to use DNS2 as the preferred DNS server， are unable to connect to Internet Web sites.
You need to enable Internet name resolution for all client computers.
What should you do（）
A.Create a copy of the .（root） zone on DNS1.
B.Update the list of root hints servers on DNS2.
C.Update the Cache.dns file on DNS2. Configure conditional forwarding on DNS1.
D.Delete the .（root） zone from DNS2. Configure conditional forwarding on DNS2.
相关考题
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单项选择题
Your company has a main office and five branch offices that are connected by WAN links. The company has an Active Directory domain named contoso.com. Each branch office has a member server configured as a DNS server. All branch office DNS servers host a secondary zone for contoso.com. You need to configure the contoso.com zone to resolve client queries for at least four days in the event that a WAN link fails. What should you do（）
A.Configure the Expires after option for the contoso.com zone to 4 days.
B.Configure the Retry interval option for the contoso.com zone to 4 days.
C.Configure the Refresh interval option for the contoso.com zone to 4 days.
D.Configure the Minimum （default） TTL option for the contoso.com zone to 4 days. -
单项选择题
Your company has a main office and a branch office. The company has a single-domain Active Directory forest. The main office has two domain controllers named DC1 and DC2 that run Windows Server 2008 R2. The branch office has a Windows Server 2008 R2 read-only domain controller （RODC）named DC3. All domain controllers hold the DNS Server server role and are configured as Active Directory- integrated zones. The DNS zones only allow secure updates. You need to enable dynamic DNS updates on DC3. What should you do（）
A.Run the Ntdsutil.exe DS Behavior commands on DC3.
B.Run the Dnscmd.exe /ZoneResetType command on DC3.
C.Reinstall Active Directory Domain Services on DC3 as a writable domain controller.
D.Create a custom application directory partition on DC1. Configure the partition to store Active Directory-integrated z -
单项选择题
Your company has two domain controllers that are configured as internal DNS servers. All zones on the DNS servers are Active Directory-integrated zones. The zones allow all dynamic updates. You discover that the contoso.com zone has multiple entries for the host names of computers that do not exist. You need to configure the contoso.com zone to automatically remove expired records. What should you do（）
A.Enable only secure updates on the contoso.com zone.
B.Enable scavenging and configure the refresh interval on the contoso.com zone.
C.From the Start of Authority tab， decrease the default refresh interval on the contoso.com zone.
D.From the Start of Authority tab， increase the default expiration interval on the contoso.com zone.
