Which statement about the KCC in a site with multiple DCs is true?

• A. The KCC creates connection objects to establish replication partnerships
• B. The KCC does not recalculate the replication topology
• C. The KCC runs on a single DC only
• D. The KCC only recalculates the topology on request

Answer: (A)

The statement that the KCC creates connection objects to establish replication partnerships is correct. The Knowledge Consistency Checker (KCC) is a crucial component in Active Directory environments, particularly in setups that involve multiple Domain Controllers (DCs). Its primary function is to manage the replication topology, ensuring that all DCs can communicate and replicate data effectively.

In a multi-DC environment, the KCC automatically generates connection objects, which represent the replication paths between DCs. These connection objects enable efficient data synchronization and help maintain consistency across the Active Directory forest. The KCC performs these tasks continuously, adjusting the topology as necessary based on the state of the network and the availability of the DCs.

The other options suggest misunderstandings about the KCC's role and operations. The KCC does recalculate the replication topology when necessary, operates on all DCs, and does not require a manual request to recalculate the topology, as it automatically adapts to changes in the environment to optimize replication.