Tree
root directory
It's Root Directory
folder
A schema separates the physical aspect of data storagefrom the logical aspects of data representation.
Active Directory on a Windows Server 2003 Networkhttp://technet.microsoft.com/en-us/library/cc780036.aspxit contains the logical diagram
Yes, a physical topology can support multiple logical topologies.
logical
root director
Can a single physical topology support multiple logical topologies give a proper reason.
A directory is a logical grouping of files. By maintaining several directories the file manager can permit the same file name to be used in separate directories to refer to independent copies of the same file or completely different files. The contents of a directory - a list of file names and their associated information - are stored in a special file called a directory file which is assigned a file name which distinguishes it from non-directory files. By allowing directory file names to appear alongside non-directory file names in a directory, the file manager is able to link separate directories hierarchically as shown in figure 1. The directory at the top of the structure is given the special name, ROOT because the hierarchical structure resembles an upside-down tree. The directories below the root directory are known as subdirectories. by earnie
LDAPThe Lightweight Directory Access Protocol, or LDAP, is an application protocol for querying and modifying data using directory services running over TCP/IP.A directory is a set of objects with attributes organized in a logical and hierarchical manner. A simple example is the telephone directory, which consists of a list of names (of either persons or organizations) organized alphabetically, with each name having an address and phone number associated with it.An LDAP directory tree often reflects various political, geographic, and/or organizational boundaries, depending on the model chosen. LDAP deployments today tend to use Domain Name System (DNS) names for structuring the topmost levels of the hierarchy. Deeper inside the directory might appear entries representing people, organizational units, printers, documents, groups of people or anything else that represents a given tree entry (or multiple entries).
The physical component of Active directory contain all the physical subnet present in your network like domain controllers and replication between domain controllers.The logical structure of active directory include forest, domains, tree, OUs and global catalogs.Domain : a group of computer and other resources that are part of a windows server2003 network and share a common directory database.Global catalog : Global catalog used to catch information about all object in a forest , the global catalog enables users and applications to find object in an active directory domain tree if the user or application knows one or more attributes of the target object.Tree : Tree as is collection of Active directory Domain, that means the trust relationship can be used by all other domain in the forest as a means to access the domain.Organization Unit - Organization Unit is a Active directory container into which object can be grouped for per mission management.Forest : Active directory forest as due to represents the external boundary of the directory service.These are two types of active directory forest :-I) Single Forest2) Multiple forest