Why Have a Directory Service

A directory service provides the means to organize TS windows vista and simplify access to resources of a networked computer system. Users and administrators might not know the exact name of the objects they need. However, they might know one or more characteristics of the objects in question. As illustrated in Figure 1-1, they can use a directory service to query the directory for a list of objects that match known characteristics. For example, "Find all color printers on the third floor" queries the directory for all color printer objects that are associated with the third floor characteristic (or maybe a location char?acteristic that has been set to "third floor"). A directory service makes it possible to find an object based on one or more of its characteristics.
A directory service is both an administration tool and an end user tool. As a network becomes larger, more objects must be managed and the directory service becomes a necessity.
In Active Directory, policies are used to define the permitted 70-620 practice test actions and settings for users and computers across a given site,domain, or organizational unit. Policy-based management simplifies tasks such as operating system updates, application installation, user profiles, and desktop system lock down.
Active Directoiy provides multimaster replication technology to ensure information availability, fault tolerance, load balancing, and other performance benefits. Multimaster replication enables you to update the directory at any domain controller and replicates directory changes to any other domain controller. Because multiple domain controllers are employed, replication continues, even if any single domain controller stops working.
Flexible, secure authentication and authorization Security integration Active Directory is integrated with Windows Server 2003 security. Access control can be defined for each object in the directory and on each properly of each object. Security policies can be applied locally, or to a specified site, domain, or organizational unit.
Directory-enabled applications and infrastructure Features within Active Directory make it easier for you to configure and manage applications and other
directory-enabled network components. In addition, Active Directory provides a powerful free Microsoft practice exam questions development environment through Active Directory Service Interfaces
(ADSI).