what is knowledge consistency checker
6.2 Knowledge Consistency Checker. A server running Active Directory is part of a distributed system that performs replication. The Knowledge Consistency Checker (KCC) is a component that reduces the administrative burden of maintaining a functioning replication topology.Additional background is provided in section 3.1.1.1.13.he Knowledge Consistency Checker (KCC) is a component that reduces the administrative burden of maintaining a functioning replication topology. Additional background is provided in section 3.1.1.1.13.