Question : Preferred adn Alternate DNs

Preferred adn Alternate DNs

I have 4 DNS servers in 2 separate geographical sites which are also all Domain Controllers 2 in each site
DNS1 and DNS2 in site1
DNS3 and DNS4 in site2
They both have an AD integrated zone for our domain(Mydomain.com)

DNS3 holds the Schema/Domain Naming/PDC/Infrastructure roles
DSN4 holds the RID master role.

DNS1 tcp/ip has preferred DNS pointing to itself(DNS1 IP),The alternate DNS is pointing to DNS2 IP,then in the advanced /under DNS tab there is also IPs for DNS3 and DNS4. which means if you run ipconfig /all on DNS1 you will see :
IP address of DNS1
IP address of DNS2
IP address of DNS3
IP address of DNS4

Now I wonder if I delete the IP address of DNS3 and IP address of DNS4 from under the DNS tab, if the AD replication and DNS zone replication will work just fine.
I mean if I run IpConfig/all, I should see just
IP address of DNS1
IP address of DNS2
whic are both in the same site.

Thanks

Answer : Preferred adn Alternate DNs

AD Replication between Sites is dependent on Sites and Site Link under AD Sites and Services.