Space to learn and talk about new AD and Azure AD scenarios and features.

Active Directory (AD) Real Time Interview Questions and Answers – windowstricks. I would like to share some of the Windows Active Directory Interview Questions and answers, will start with basic questions and continue with L1, L2, L3 level questions. Also Read: Windows Server Administrator Interview Questions and Answers. What is Active Directory?

Active Directory (AD) is a directory service developed by Microsoft and used to store objects like User, Computer, printer, Network information, It facilitate to manage your network effectively with multiple Domain Controllers in different location with AD database, able to manage/change AD from any Domain Controllers and this will be replicated to all other DC’s, centralized Administration with multiple geographical location and authenticates users and computers in a Windows domain. What is LDAP and how the LDAP been used on Active Directory(AD)? It provides authentication and authorization mechanisms as well as a framework within which other related services can be deployed.

Sign in to add this video to a playlist. Info Level: Intermediate Presenter: Eli the Computer Guy Date Created: April 23. 1 Product Overview Active@ KillDisk for Windows is a powerful utility that will: Recovery Manager for Active Directory enables you to quickly restore your environment from an Active Directory disaster, without taking AD offline. Simplify Active Directory® administration. Three tools to add and remove users and computers, individually or in bulk, based on specified attributes.

What is Active Directory Domain Controller (DC)? Domain Controller is the server which holds the AD database, All AD changes get replicated to other DC and vise vase. What is Forest? Forest consists of multiple Domains trees. The Domain trees in a forest do not form a contiguous name space however share a common schema and global catalog (GC)What is Schema? Active directory schema is the set of definitions that define the kinds of object and the type of information about those objects that can be stored in Active Directory. Active directory schema is Collection of object class and there attributes. Object Class = User.

Attributes = first name, last name, email, and others. Can we restore a schema partition? Tel me about the FSMO roles? Schema Master. Domain Naming Master. Infrastructure Master. RID Master. PDCSchema Master and Domain Naming Master are forest wide role and only available one on each Forest, Other roles are Domain wide and one for each Domain.

AD replication is multi master replication and change can be done in any Domain Controller and will get replicated to others Domain Controllers, except above file roles, this will be flexible single master operations (FSMO), these changes only be done on dedicated Domain Controller so it’s single master replication. How to check which server holds which role? Netdom query FSMOWhich FSMO role is the most important? Download Adobe Reader For Nokia E61i Specs here. And why? Interesting question which role is most important out of 5 FSMO roles or if one role fails that will impact the end- user immediately.

Most armature administrators pick the Schema master role, not sure why maybe they though Schema is very critical to run the Active Directory. Correct answer is PDC, now the next question why?

Will explain role by role what happens when a FSMO role holder fails to find the answer. Schema Master – Schema Master needed to update the Schema, we don’t update the schema daily right, when will update the Schema? While the time of operating system migration, installing new Exchange version and any other application which requires extending the schema. So if are Schema Master Server is not available, we can’t able to update the schema and no way this will going to affect the Active Directory operation and the end- user. Schema Master needs to be online and ready to make a schema change, we can plan and have more time to bring back the Schema Master Server. Domain Naming Master – Domain Naming Master required to creating a new Domain and creating an application partition, Like Schema Master we don’t cerate Domain and application partition frequently.

So if are Domain Naming Master Server is not available, we can’t able to create a new Domain and application partition, it may not affect the user, user event didn’t aware Domain Naming Master Server is down. Infrastructure Master – Infrastructure Master updates the cross domain updates, what really updates between Domains? Whenever user login to Domain the TGT has been created with the list of access user got through group membership (user group membership details) it also contain the user membership details from trusted domain, Infrastructure Master keep this information up- to- date, it update reference information every 2 days by comparing its data with the Global Catalog (that’s why we don’t keep Infrastructure Master and GC in same server)In a single Domain and single Forest environment there is no impact if the Infrastructure Master server is down. In a Multi Domain and Forest environment, there will be impact and we have enough time to fix the issue before it affect the end- user. RID Master –Every DC is initially issued 5.

RID’s from RID Master Server. The RID uniquely identifies a security principal relative to the local or domain security authority that issued the SIDWhen it gets down to 2. RID’s from the RID master. Any password change is replicated to the PDC emulator ASAP. If a logon request fails due to a bad password the logon request is passed to the PDC emulator to check the password before rejecting the login request.

Tel me about Active Directory Database and list the Active Directory Database files? NTDS. DITEDB. Log. EDB. Che. Res. 1. Res. 2. log. All AD changes didn’t write directly to NTDS. DIT database file, first write to EDB. Log and from log file to database, EDB. Che used to track the database update from log file, to know what changes are copied to database file.

NTDS. DIT: NTDS. DIT is the AD database and store all AD objects, Default location is the %system root%\nrds\nrds. Active Directory database engine is the extensible storage engine which us based on the Jet database. EDB. Log: EDB. Log is the transaction log file when EDB. Log is full, it is renamed to EDB Num.

EDB1. Log. EDB. Che: EDB. Che is the checkpoint file used to trace the data not yet written to database file this indicate the starting point from which data is to be recovered from the log file in case if failure. Res. 1. log and Res. Res is reserved transaction log file which provide the transaction log file enough time to shutdown if the disk didn’t have enough space. What RAID configuration can be used in Domain Controllers? Can we keep OS, log files, SYSVOL, AD database on same logical Disk?

Continue reading.