单项选择题
A. Run the dnscmd /ZoneUpdateFromDs command on the branch office servers.
B. Run the dnscmd /ZoneUpdateFromDs command on a domain controller in the main office.
C. Change the domain controllers at the branch offices from RODCs to standard domain controllers.
D. Decrease the Minimum （default） TTL option to 15 minutes on the Start of Authority （SOA） record for thezone.
单项选择题 Your network contains 100 servers that run Windows Server 2008 R2.A server named Server1 is deployed on the network. Server1 will be used to collect events from the Security event logs of the other servers on the network.You need to define the Custom Event Delivery Optimization settings on Server1.Which tool should you use?（）
单项选择题 Yourcompanyhasamainofficeandabranchoffice.ThemainofficehasadomaincontrollernamedDC1thathostsaDNSprimaryzone.ThebrancofficehasaDNSservernamedSRV1thathostsaDNSsecondaryZone.AllclientcomputersareconfiguredtousetheirlocalserverforDNSresolution.YouchangetheIPaddressofanexistingservernamedSRV2inthemainoffice.YouneedtoensurethatSRV1reflectsthechangeimmediately.Whatshouldyoudo？（）
单项选择题 YourcompanyhasanActiveDirectorydomainnamedad.contoso.comThecompanyalsohasapublicnamespacenamedcontoso.com.YouneedtoensurethatpublicDNSzonerecordscannotbecopied.YoumustachievethisgoalwithoutimpactingthefunctionalityofpublicDNSnameresolutions.Whatshouldyoudo（）