单项选择题 Your network contains an Active Directory domain named contoso.com.     You remove several computers from the network.     You need to ensure that the host （A） records for the removed computers are automatically  deleted from the contoso.com DNS zone.     What should you do（）

单项选择题 YouhaveanActiveDirectorydomainnamedcontoso.com.YouhaveadomaincontrollernamedServer1thatisconfiguredasaDNSserver.Server1hostsastandardprimaryzoneforcontoso.com.TheDNSconfigurationofServer1isshownintheexhibit.（ClicktheExhibitbutton.） Youdiscoverthatstaleresourcerecordsarenotautomaticallyremovedfromthecontoso.comzone.Youneedtoensurethatthestaleresourcerecordsareautomaticallyremovedfromthecontoso.comzone. Whatshouldyoudo（）

单项选择题 Your network contains a domain controller that is configured as a DNS server. The server hosts  an Active Directory-integrated zone for the domain.     You need to reduce how long it takes until stale records are deleted from the zone.     What should you do（）