Choose the most relevant picture. Wǒ zài wǎngshàng shì le yìshuāngxié，dànshì shì le yǐhòu fāxiàn tài dà le。 我在网上买了一双鞋，但是试了以后发现太大了。

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Your company has multiple DNS servers in the main office.You plan to install DNS on a member server in a branch office.You need to ensure that the DNS server in the branch office is able to query any DNS server in the main office, and you need to limit the number of DNS records that are transferred to the DNS server in the branch office.What should you do？（）

A. Configure a secondary zone on the DNS server in the branch office.

B. Configure a stub zone on the DNS server in the branch office.

C. Configure a stub zone on the DNS server in the main office.

D. Configure a primary zone on the DNS server in the branch office.

Your company has a main office and two branch offices. Domain controllers in the main office host an Active Directory-integrated zone.The DNS servers in the branch offices host a secondary zone for the domain and use the main office DNS servers as their DNS Master servers for the zone.The company adds a new branch office. You add a member server named Branch3 and install the DNS Server server role on the server. You configure a secondary zone for the domain. The zone transfer fails.You need to configure DNS to provide zone data to the DNS server in the new branch office.What should you do？（）

A. Run dnscmd by using the ZoneResetMasters option.

B. Run dnscmd by using the ZoneResetSecondaries option.

C. Add the new DNS server to the Zone Transfers tab on one of the DNS servers in the main office.

D. Add the new DNS server to the DNSUpdateProxy Global security group in Active Directory Users and Computers.

YourcompanyhasanActiveDirectorydomain.ThemainofficehasaDNSservernamedDNS1thatisconfiguredwithActiveDirectory-integratedDNS.ThebranchofficehasaDNSservernamedDNS2thatcontainsasecondarycopyofthezonefromDNS1.ThetwoofficesareconnectedwithanunreliableWANlink.

Youaddanewservertothemainoffice.Fiveminutesafteraddingtheserver，auserfromthebranchofficereportsthatheisunabletoconnecttothenewserver.Youneedtoensurethattheuserisabletoconnecttothenewserver.Whatshouldyoudo（）

Yourcompanyhasamainofficeandabranchoffice.ThemainofficehasadomaincontrollernamedDC1thathostsaDNSprimaryzone.ThebranchofficehasaDNSservernamedSRV1thathostsaDNSsecondaryzone.AllclientcomputersareconfiguredtousetheirlocalserverforDNSresolution.YouchangetheIPaddressofanexisitingservernamedSRV2inthemainoffice.YouneedtoensureSRV1reflectsthechangeimmediately.Whatshouldyoudo？（）

A.RestarttheDNSServerserviceonDC1

B.Runthednscmdcommandbyusingthe/zonerefreshoptiononDC1

C.Runthednscmdcommandbyusingthe/zonerefreshoptiononSRV1

D.Settherefreshintervalto10minutesontheStartOfAuthority（SOA）record.

下面有关DNS的描述正确的是

A．DNS既依赖于UDP又依赖于TCP

B．DNS仅依赖于UDP

C．DNS仅依赖于TCP

D．DNS既不依赖于UDP又不依赖于TCP

DNS服务器安装的第一步是( )。

A．配置DNS服务器

B．安装DNS服务

C．测试DNS服务器

D．为DNS服务器配置固定的IP地址

在一台DNS服务器上，只能建立一个DNS区域。

此题为判断题(对，错)。