单项选择题
Your network consists of a single Active Directory domain. All servers run Windows Server 2003 Service Pack 2 （SP2）.A firewall separates the internal network from the Internet.
The firewall blocks all outbound traffic except for HTTP and SMTP traffic.You install a DNS server. The DNS server is configured to use the default root hints. You need to ensure that the DNS server can resolve the host names on the Internet.
Which port should you open on the firewall？（）
A.53
B.135
C.500
D.3389
相关考题
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单项选择题
Your network consists of a single Active Directory domain. All servers run Windows Server 2003 Service Pack 2 （SP2）. You have a DNS server named Server1 that hosts a primary zone for the domain. You have a DNS server named Server 2 that hosts a secondary zone for the domain. You discover that the resource records on Server2 are different from the resource records on Server1. You need to ensure that the resource records are the same on Server1 and Server2. What should you do？（）
A.On Server2， select Reload in the DNS zone.
B.On Server2， select Reload from Master in the DNS zone.
C.On Server1， select Update Server Data File in the DNS zone.
D.On Server1， deselect the Fail on load if bad zone data option. -
单项选择题
You have a DNS server named Server1 that runs Windows Server 2003 Service Pack 2 （SP2）. You have two Web servers named Server2 and Server3. The Web servers host an internal Web site that will be accessed by the URL http：//www.contoso.com. You need to ensure that requests for www.contoso.com are distributed between Server2 and Server3. What should you do？（）
A.On each Web server， configure a host header value of www.contoso.com.
B.On each Web server， configure a custom HTTP header value of www.contoso.com.
C.On Server1， create two host （A） records for www.contoso.com.
D.On Server1， create a _roundrobin._tcp.contoso.com service locator （SRV） record for each server that has a port value of 80. -
单项选择题
You have 10 DNS servers that run Windows Server 2003 Service Pack 2 （SP2）. You need to automate the management of the DNS server. Which tool should you use？（）
A.Dnscmd.exe
B.Dnslint.exe
C.Msconfig.exe
D.Netsh.exe
