Server Active Directory Related Interview Question And Answer.

 

What is Active Directory?

Active directory is a hierarchical structure that stores information about objects on the network. Active Directory provides the methods for storing directory data and making this data available to network users and administrators.

Active Directory Default Storage?

Active Directory Data base folder: - D:\WINDOWS\NTDS

Store active Directory log: - D:\WINDOWS\NTDS

SYSVOL:-The SYSVOL folder stores the server copy of domain public files. The contents of the SYSVOL folder are replicated to all domain controllers in the domain.

Its must be located on an NTFS Volume

SYSVOL By default Location: - D:\WINDOWS\SYSVOL

What is Domain?

In Active Directory, a collection of computer, user, and group objects defined by the administrator. These objects share a common directory database, security policies, and security relationships with other domains. In Domain Name System (DNS), a domain is any tree or sub tree within the DNS namespace. Although the names for DNS domains often correspond to Active Directory domains, DNS domains should not be confused with Active Directory domains.

What is Domain Controller?

In an Active Directory forest, a server that contains a writable copy of the Active Directory database participates in Active Directory replication, and controls access to network resources. Administrators can manage user accounts, network access, shared resources, site topology, and other directory objects from any domain controller in the forest. See also Active Directory; authentication; directory; forest.

What is Domain Services?

Active Directory provides the means to manage the identities and relationships that make up your organization's network. Integrated with Windows Server 2008, Active Directory gives you out-of-the-box functionality needed to centrally configure and administer system, user, and application settings. Active Directory Domain Services (AD DS) stores directory data and manages communication between users and domains, including user logon processes, authentication, and directory searches.

What is Global Catalog (GC)?

A domain controller that contains a partial replica of every domain in Active Directory. A global catalog holds a replica of every object in Active Directory, but with a limited number of each object’s attributes. The global catalog stores those attributes most frequently used in search operations (such as a user’s first and last names) and those attributes required to locate a full replica of the object. The Active Directory replication system builds the global catalog automatically. The attributes replicated into the global catalog include a base set defined by Microsoft. Administrators can specify additional properties to meet the needs of their installation.

 

What is Forest?

A collection of one or more Active Directory domains that share a common schema, configuration, and global catalog.

What is tree?

A tree in Active Directory is just an extension of the idea of a directory tree. It’s a hierarchy of objects and containers that demonstrates how objects are connected, or the path from one object to another. Endpoints on the tree are usually objects.

What is Site?

One or more well-connected (highly reliable and fast) Transmission Control Protocol/Internet Protocol (TCP/IP) subnets. A site allows administrators to con-figure Active Directory access and replication topology quickly and easily to take advantage of the physical network. When users log on, Active Directory clients locate Active Directory servers in the same site as the user. See also subnet; well-connected.

What is Organizational unit (OU)?

A container object in Active Directory used to separate computers, users, and other resources into logical units. An organizational unit is the smallest entity to which Group Policy can be linked. It is also the smallest scope to which administration authority can be delegated.

What is Schema?

A description of the object classes and attributes stored in Active Directory. For each object class, the schema defines what attributes an object class must have, what additional attributes it may have, and what object class can be its parent. An Active Directory schema can be updated dynamically. For example, an application can extend the schema with new attributes and classes and use the extensions immediately. Schema updates are accomplished by creating or modifying the schema objects stored in Active Directory. Like every object in Active Directory, a schema object has an access control list (ACL) so that only authorized users can alter the schema.

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