Which two statements about the use of the Intercluster Lookup Service in a multicluster environment are true? (Choose tw

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Which two statements about the use of the Intercluster Lookup Service in a multicluster environment are true? (Choose two.)

A. Cisco Unified Communications Manager uses the ILS to support intercluster URI dialing.
B. ILS contains an optional directory URI replication feature that allows the clusters in an ILS network to replicate their directory URIs to the other clusters in the ILS network.
C. Directory URI replication does not need to be enabled individually for each cluster.
D. To enable URI replication in a cluster, check the Exchange Directory URIs with Remote Clusters check box that appears in the SIP trunk configuration menu.
E. If the ILS and directory URI replication feature is disabled on a cluster, this cluster still accepts ILS advertisements and directory URIs from other neighbor clusters; it just does not advertise its local directory URIs.