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Global Catalog contains searchable, partial representation of every object in every domain in a multidomain forest. This makes searches faster and saves data BW. Hope this helps
The global catalog is a distributed data repository that facilitates searches and logins in an Active Directory forest
A global catalog is a domain controller that stores a copy of all Active Directory objects in a forest.
global catalog stores a full copy of all objects in the directory for its host domain and a partial copy of all objects for all other domains in the forest
its writable domain directory partition of replica. Also stores a partial read-only replica of all other domain directory partitions in the forest.
Global Catalog in any Microsoft Server Domain Controller is the set of all the services of Active Directory Domain Service
GC is a PAS of Active Directory attributes, it is used as an index for all of AD object.
Global Catalog is the master searchable index to all objects in forest.For example, if you make a search for all of the printers in a forest, this search goes to global catalog server.
A domain controller that stores a copy of all Active Directory. also stores a partial, read-only replica of all other domain directory partitions in the forest.
The global catalog is the set of all objects in an Active Directory Domain Services. A global catalog server is a domain controller that stores a full copy of all objects in the directory for its host domain and a partial, read-only copy of all objects for all other domains in the forest.
Global catalog is a domain controller that keeps information of all Active Directory Objects and partial information about their attributes.
