A tool often forgotten by Exchange admins/consultants is the Microsoft Active Directory Topology Mapper.This tool reads an Active Directory (AD) configuration using LDAP and automatically generates a Visio diagram of the AD and/or Exchange Server topology.The diagrams may include domains, sites, servers, organizational units, DFS-R, administrative groups, routing groups and connectors. WHAT IS STOCK EXCHANGE? Definition of Stock Exchange : The securities regulation act of 1956defined stock exchange as “an association , organization , or aindividual which is established for for the purpose of assisting ,regulating , and controlling business in buying ,selling and dealingin securities.” All trading in a given stock is centralized at that stock’s assigned. trading post and panel location.4 It is here that specialists work and floor brokers congregate to. transact, forming the "trading crowd.". The specialist and his clerks remain at the post.