- What is Active Directory and how does it work?
Active Directory is a centralized database that stores information about users, computers, groups, and other resources in a network. It allows administrators to manage these resources through a hierarchical structure of domains and organizational units (OUs).
- What is a domain in Active Directory?
A domain is a logical grouping of resources, such as users, computers, and OUs, that share a common security and administrative boundary. It can be thought of as a container for these resources.
- What is a forest in Active Directory?
A forest is a collection of domains that share a common schema and trust relationships. It is the highest level of the Active Directory hierarchy and represents an organization or collection of organizations.
- What is a global catalog in Active Directory?
A global catalog is a distributed database that contains information about every object in the forest. It is used to speed up searches and queries across domains and enables users to find resources anywhere in the forest.
- What is the difference between a user account and a
computer account in Active Directory?
A user account represents a person who is authorized to access network resources, while a computer account represents a computer that is a member of the domain and can also access network resources. - What is Group Policy and how does it work?
Group Policy is a feature of Active Directory that allows administrators to define and enforce policies for users and computers in the domain. These policies can control a wide range of settings, such as security, software installation, and user preferences.
- What is Kerberos authentication and how does it work
in Active Directory?
Kerberos is a network authentication protocol that allows users to securely authenticate to network resources. In Active Directory, it is the default authentication method and uses tickets to authenticate users and computers.
- What is DNS and how does it relate to Active
Directory?
DNS is a protocol for resolving domain names to IP addresses. It is used in Active Directory to locate domain controllers and other resources in the network.
- What is the difference between a domain and a
workgroup?
A domain is a centralized directory service that allows administrators to manage resources in a network, while a workgroup is a decentralized grouping of computers that are not managed by a central directory service.
- How do you create a new user account in Active
Directory?
To create a new user account in Active Directory, an administrator would typically use the Active Directory Users and Computers console or PowerShell commandlets.
- How do you troubleshoot Active Directory replication
issues?
Troubleshooting Active Directory replication issues typically involves using diagnostic tools such as repadmin and dcdiag to identify and resolve replication errors.
- What is a site in Active Directory and how does it
relate to replication?
A site is a logical grouping of network resources that share a common network connectivity and bandwidth. In Active Directory, it is used to control replication traffic between domain controllers and ensure that replication occurs efficiently.
- How do you recover a deleted object in Active
Directory?
To recover a deleted object in Active Directory, an administrator can use the Active Directory Recycle Bin feature, which allows deleted objects to be restored for a specified period of time.
- How do you secure Active Directory?
Securing Active Directory involves a wide range of measures, including implementing strong password policies, restricting administrative access, enabling auditing and logging, and using firewalls and other security technologies.
- What is an LDAP query and how does it work in Active
Directory?
An LDAP query is a method of searching the Active Directory database for objects that match certain criteria
- What is a trust relationship in Active Directory and
how does it work?
A trust relationship allows users in one domain to access resources in another domain. It establishes a secure communication channel between the domains and can be configured to be one-way or two-way.
- How do you troubleshoot authentication issues in
Active Directory?
Troubleshooting authentication issues in Active Directory typically involves examining logs and diagnostic data to identify the source of the problem. Common issues may include incorrect passwords, expired user accounts, or problems with the Kerberos authentication protocol.
- What is the difference between a primary and
secondary DNS server in Active Directory?
A primary DNS server is the initial source of information for DNS queries, while a secondary DNS server is a backup that can be used if the primary server is unavailable. In Active Directory, it is important to have multiple DNS servers to ensure high availability and fault tolerance. - How do you manage Active Directory permissions?
Managing Active Directory permissions involves assigning appropriate levels of access to users and groups based on their roles and responsibilities. This can be done through the Active Directory Users and Computers console or PowerShell commandlets.
- What is the role of Active Directory in a hybrid
cloud environment?
Active Directory can play a key role in a hybrid cloud environment by providing a single source of authentication and authorization for on-premises and cloud-based resources. This can enable users to seamlessly access resources in both environments while maintaining security and compliance.
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