DC 2003 have the four major partitons that replicate

DC 2003 have the four major partitons that replicate :

1)Schema Partition:replicated among the forests through all the DC's
2)configuration Partition:Domain names and all the configuration structure of the forest
3)Domian Partition for the local doamin:Users,groups created are within the domain only and do not replicate among the forest.
4)Application Directory Partition :Only some 2003 DC's and GC do not at all
Apart from all the above GC replicate a subset of properties  for all the directory objects in the forest.