Yournetwork contains an Active Directory domain named contoso.com.
The domain contains two domain controllers named DC1 and DC2 that run Windows Server 2012
R2.
DC1 and DC2 fail to replicate Active Directory information.
Youconfirm that DC1 and DC2 have network connectivity.
The NTDS Settings of DC2 are configured as shown in the NTDS Settings exhibit. (Click tie Exhibit
button.)

DNS is configured as shown in the DNS exhibit. (Click the Exhibit button.)

You need to ensure that DC1 and DC2 can replicate immediately.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose
two.)

A.
From DC1, restart the Netlogon service

B.
From DC2, run nltest.exe /sync

C.
From DC1, run ipconfig /flushdns

D.
From DC1, run repadmin /syncall

E.
From DC2, run ipconfig /registerdns

F.
From DC2, restart the Netlogon service

Explanation:
The figure of the DNS configuration can be seen that the alias (CNAME) entry that identifies DC2 as
a domain controller of the domain certbase.de missing. While ipconfig / registerdns ensures that
the IP address of a DNS client in DNS is registered, is restarting the Netlogon service on a domain
controller ensures that all entries for the service location (Service Resource Records, SRVs) be the
domain controller registered or renewed. After the service location records for DC2 completed or
modified, can on one of the two domain controller with a call from repadmin / syncall immediate
replication of the Active Directory database are introduced.