I read this from an article
"The infrastructure master is responsible for updating references from objects in its domain to objects in other domains. The infrastructure master compares its data with global catalog. Global catalogs receive regular updates for objects in all domains through replication, so the global catalog's data will always be up-to-date. If the infrastructure master finds data that is out-of-date, it requests the updated data from a global catalog. The infrastructure master then replicates that updated data to the other domain controllers in the domain."
But I don't understand the first sentence here.. The infrastructure master is responsible for updating references ""from objects in its domain to objects in other domains""
The IM is not at domain level?? I mean its own domain. Why it updates objects in other domain as well??