Active Directory Interview Questions and Answers
More and more companies are understanding the power of networks and cloud services which have become a requisite in todays offices. With the offer of Cloud Services, Office 365 and employees working away from the office teamwork is essential. Guaranteeing the networks that connect employees and giving access to projects and documents within the organisation is essential for efficient functioning.
This has led to the demand for system administrators and talented network technicians who understand Active Directory.
Here are some of the basic Active Directory Interview Questions that you may have to face during the interview.
What is Active Directory?
An active directory is a directory structure that is used on Microsoft Windows based servers and computers for storing data and information about networks and domains.
‘Forest’ is used to describe a combination of AD domains that share a single plan for the AD. All the DCs in the forest share this plan and it is duplicated in an ordered fashion among them. The ideal model for Windows 2000 AD is to have an organisation use a single forest that covers an entire enterprise. They are not an administrative block by themselves. However, forests are a major boundary. Only limited interaction is available between forests. It is difficult for the user in one forest to access a resource in another forest.
It is not easy to integrate forests currently because of potential problems resolving schema differences between two forests.
Explain Domains in Active Directory.
In Windows 2000 a domain describes a security and an administrative boundary for a collection of objects that are applicable to a group of users on a network. A domain is a managerial boundary because administrative privileges do not reach other domains. It is a security boundary as each domain has a security policy that covers all security accounts within the domain. Active Directory keeps information about objects in one or more domains.
Domains can be arranged into parent-child relationships to form a hierarchy. A parent domain is directly superior to one or more child or subordinate domains. A child domain can also be the parent of one or more child domains.
Explain the Empty Root Domain.
The Empty Root Domain is an AD design component that has become increasingly accepted at organisations with dispersed IT authority such as universities. The Empty Root Domain works as a placeholder for the root of Active Directory. It does not contain any resources or users that are not needed to fulfil this role. Only those benefits that have forest-wide or tree scope are limited to the empty root domain administrators. Departmental administrators can work independently to other departments.
Explain Mixed Mode.
Mixed Modes allow domain controllers running both Windows 2000 and earlier forms of Windows NT to co-exist in the domain.
Explain SYSVOL and Why is it Important?
SYSVOL is a folder that occurs on all domain controllers. It is the source for all the active directory files. It stores all the important features of the Active Directory group policy. The SYSVOL folder duplicates the File Replication Service among domain controllers. Logon policies and scripts are delivered to each domain user via SYSVOL.
How Does Active Directory Authentication Works?
When a user logs into the network they are given a username and password. The computer sends these to the KDC. This holds the master list of unique long-term keys for each user. The KDC generates a session key and a ticket granting ticket. This information is sent to the user’s computer. The information is sent through a hashing function that converts the data into the user’s master key. The computer then communicates with the KDC to retrieve the domain’s resources.
Other general questions you may be asked include:
Tell me about yourself – You can answer with an overview of work or employment history.
- What attracted you to our company? Or Why should we hire you?– This is your chance to show you’ve done your research.
- Tell me about your strengths – Pinpoint two or three of your best qualities and give concrete examples of these strengths.
- What are you looking for in your next role – Start with your skills. Talk about how you are looking for a role that will employ and further develop the skill.
- Do you have any questions for me – It is important to come with a list of prepared interview questions.
It is common for interviewers to give various assessments and written tests during a job interview. While they may vary, in general they are given to assess the skills and knowledge of a job applicant under a deadline in a ‘real-world’ setting. It is important to be ready for both verbal and written questions.
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