Copies of birth certificates and other personal vital records can only be obtained from the state or US possession where the documents were originally filed. Most states provide a centralized source from which birth certificates and other vital records can be ordered.opies of birth certificates and other personal vital records can only be obtained from the state or US possession where the documents were originally filed. Most states provide a centralized source from which birth certificates and other vital records can be ordered.
Tree Topology: This is a hybrid topology that combines characteristics of linear bus and star topologies. In a tree network, groups of star-configured networks are connected to a linear bus backbone cable.
Mesh topology introduces the concept of routes. Unlike each of the previous topologies, messages sent on a mesh network can take any of several possible paths from source to destination. (Recall that even in a ring, although two cable paths exist, messages can only travel in one direction.) Some WANs, most notably the Internet, employ mesh routing.