DNS

Active Directory (AD) integrated means just that. Your zone data is stored in Active Directory. This means if you have 2 or more DNS servers that are AD integrated then you do not need to worry about specifying a replication scheme. DNS data willbe replicated between severs when AD replicates normally.

Any AD integrated DNS server can update the Zone data. So there is no concept of one being primary and others secondary when you are using AD integrated DNS servers.

A standard promaryzone is when we have a master/slave scenario. One DNS server is holds that primary Zone data. Only that DNS server will ever accept updates to the data. Other DNS servers are set up as secondary/backup dns servers. All they do is periodically take a copy of the primary server's zone data. If you are used to NT networks you will see this is very similar to how PDC's and BDC's used to work.

I hope that helps.

FYI, we use AD integrated DNS servers at work as it is one less headache to worrk about.