Your network contains an Active Directory domain. The domain contains two sites named Site1 and Site2.Site
1 contains five domain controllers. Site2 contains one read-only domain controller (RODC). Site1 and Site2
connect to each other by using a slow WAN link.
You discover that the cached password for a user named User1 is compromised on the RODC.
On a domain controller in Site1, you change the password for User1.
You need to replicate the new password for User1 tothe RODC immediately. The solution must not replicate
other objects to the RODC.
Which tool should you use?

A.
Active Directory Sites and Services

B.
Active Directory Users and Computers

C.
Repadmin

D.
Replmon

Explanation:
Reference:
http://technet.microsoft.com/en-us/library/cc742095.aspx
Repadmin /rodcpwdrepl
Triggers replication of passwords for the specifiedusers from a writable Windows Server 2008 source domain
controller to one or more read-only domain controllers (RODCs).
Example:
The following example triggers replication of the passwords for the user account named JaneOh from the
source domain controller named source-dc01 to all RODCs that have the name prefix dest-rodc:
repadmin /rodcpwdrepl dest-rodc* source-dc01 cn=JaneOh,ou=execs,dc=contoso,dc=com