Windows Active Directory Interview Questions !

>What is Active Directory ?
Active Directory is a Meta Data. Active Directory is a data base which store a data base like your user information, computer information and also other network object info. It has capabilities to manage and administor the complite Network which connect with AD.

>What is domain ?
Windows NT and Windows 2000, a domain is a set of network resources (applications, printers, and so forth) for a group of users. The user need only to log in to the domain to gain access to the resources, which may be located on a number of different servers in the network. The 'domain' is simply your computer address not to confused with an URL. A domain address might look something like 211.170.469.
>What is domain controller ?
A Domain controller (DC) is a server that responds to security authentication requests (logging in, checking permissions, etc.) within the Windows Server domain. A domain is a concept introduced in Windows NT whereby a user may be granted access to a number of computer resources with the use of a single username and password combination.
>What is LDAP ?
Lightweight Directory Access Protocol LDAP is the industry standard directory access protocol, making Active Directory widely accessible to management and query applications. Active Directory supports LDAPv3 and LDAPv2.
>What is KCC ?
KCC ( knowledge consistency checker ) is used to generate replication topology for inter site replication and for intrasite replication.with in a site replication traffic is done via remote procedure calls over ip, while between site it is done through either RPC or SMTP.
>Where is the AD database held? What other folders are related to AD?
The AD data base is store in c:\windows\ntds\NTDS.DIT.
>What is the SYSVOL folder?
The sysVOL folder stores the server's copy of the domain's public files. The contents such as group policy, users etc of the sysvol folder are replicated to all domain controllers in the domain.
>What are the Windows Server 2003 keyboard shortcuts ? 
Winkey opens or closes the Start menu. Winkey + BREAK displays the System Properties dialog box. Winkey + TAB moves the focus to the next application in the taskbar. Winkey + SHIFT + TAB moves the focus to the previous application in the taskbar. Winkey + B moves the focus to the notification area. Winkey + D shows the desktop. Winkey + E opens Windows Explorer showing My Computer. Winkey + F opens the Search panel. Winkey + CTRL + F opens the Search panel with Search for Computers module selected. Winkey + F1 opens Help. Winkey + M minimizes all. Winkey + SHIFT+ M undoes minimization. Winkey + R opens Run dialog. Winkey + U opens the Utility Manager. Winkey + L locks the computer.

>Where are the Windows NT Primary Domain Controller (PDC) and its Backup Domain Controller (BDC) in Server 2003 ?
The Active Directory replaces them. Now all domain controllers share a multimaster peer-to-peer read and write relationship that hosts copies of the Active Directory.
>I am trying to create a new universal user group. Why can’t I ?
Universal groups are allowed only in native-mode Windows Server 2003 environments. Native mode requires that all domain controllers be promoted to Windows Server 2003 Active Directory.
>What is LSDOU ?
 It’s group policy inheritance model, where the policies are applied toLocal machines, Sites, Domains and Organizational Units.
>Why doesn’t LSDOU work under Windows NT ?
If the NTConfig.pol file exist, it has the highest priority among the numerous policies.
>What’s the number of permitted unsuccessful logons on Administrator account? Unlimited. Remember, though, that it’s the Administrator account, not any account that’s part of the Administrators group.
> What’s the difference between guest accounts in Server 2003 and other editions?
 More restrictive in Windows Server 2003.
> How many passwords by default are remembered when you check "Enforce Password History Remembered"?
User’s last 6 passwords.
> Can GC Server and Infrastructure place in single server If not explain why ?
No, As Infrastructure master does the same job as the GC. It does not work together.
> Which is service in your windows is responsible for replication of Domain controller to another domain controller.
KCC generates the replication topology.
Use SMTP / RPC to replicate changes.
> What Intrasite and Intersite Replication ?
Intrasite is the replication with in the same site & intersite the replication between sites.
> What is lost & found folder in ADS ?
It’s the folder where you can find the objects missed due to conflict.
Ex: you created a user in OU which is deleted in other DC & when replication happed ADS didn’t find the OU then it will put that in Lost & Found Folder.
> What is Garbage collection ?
Garbage collection is the process of the online defragmentation of active directory. It happens every 12 Hours.
> What System State data contains ?
Contains Startup files,
Com + Registration Database
Memory Page file
System files
AD information
Cluster Service information

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