What Is Active Directory?
Active Directory provides a centralised control for network administration and security. Server computers configured with Active Directory are known as domain controllers. Active Directory stores all information and settings for a deployment in a central database, and allows administrators to assign policies and deploy and update software.
What Is A Domain?
A domain is defined as a logical group of network objects (computers, users, devices) that share the same Active Directory database. A tree can have multiple domains.
What Is Domain Controller?
A domain controller (DC) or network domain controller is a Windows-based computer system that is used for storing user account data in a central database. It is the centrepiece of the Windows Active Directory service that authenticates users, stores user account information and enforces security policy for a Windows domain.
A domain controller allows system administrators to grant or deny users access to system resources, such as printers, documents, folders, network locations, etc., via a single username and password.
What Is Ldap?
A GLDAP (Light-Weight Directory Access Protocol) determines how an object in an Active Directory should be named. LDAP is the industry standard directory access protocol, making Active Directory widely accessible to management and query applications. Active Directory supports LDAPv2 and LDAPv3.
Where Is The Ad Database Stored?
The AD database is stored in C:WindowsNTDSNTDS.DIT.
What Is The Sysvol Folder?
The SYSVOL folder stores the server copy of the domain’s public files that must be shared for common access and replication throughout a domain.
All AD databases are stored in a SYSVOL folder and it’s only created in an NTFS partition. The Active Directory Database is stored in the %SYSTEM ROOT%NDTS folder.
What Is Garbage Collection?
Garbage collection is the online defragmentation of the Active Directory which happens every 12 hours.
When Do We Use Wds?
Windows Deployment Services is a server role used to deploy Windows operating systems remotely. WDS is mainly used for network-based OS installations to set up new computers.
What Are Lingering Objects?
A lingering object is a deleted AD object that still remains on the restored domain controller in its local copy of Active Directory. They can occur when changes are made to directories after system backups are created.
When restoring a backup file, Active Directory generally requires that the backup file be no more than 180 days old. This can happen if, after the backup was made, the object was deleted on another DC more than 180 days ago.
Why Do We Use Dhcp?
Dynamic Host Configuration Protocol assigns dynamic IP addresses to network devices allowing them to have a different IP address each time they are connected to the network.
How Can We Remove Lingering Objects?
Windows Server 2003 and 2008 have the ability to manually remove lingering objects using the console utility command REPADMIN.EXE.
Why Should You Not Restore A Dc That Was Backed Up 6 Months Ago?
When restoring a backup file, Active Directory generally requires that the backup file be no more than 180 days old. If you attempt to restore a backup that is expired, you may face problems due to lingering objects.
What Experience Do You Have With Hardware Components?
Installation and replacement are some of the most frequently performed operations with hardware. Sometimes a system administrator might need to rebuild a hardware component.
Give An Example Of Systems You Have Been Working With As An Administrator?
These typically are: Windows and Linux, which support either Asset Management or GIS. Typical duties include engineering, support and maintenance, and research for the purpose of innovation and upgrading.
What Are The Personal Characteristics Of A System Administrator?
System administrators are experts at handling hardware and software. They are quick with both their hands and their head. They can work alone, but they know when and how to communicate with others, whether to report problems, learn information needed to fix problems, or instruct employees regarding technical issues.
What Role Do Characteristics Such As Assertiveness And Problem Solving Play In The Career Of A System Administrator?
Analytical thinking and problem solving is crucial to be able to analyze software or hardware malfunction. They are also necessary to be able to improve or upgrade systems so that they suit company needs. Assertiveness also plays a role because administrators have to make decisions. They decide on solutions, security measures, and things like system upgrades.
Is Team-work Part Of A System Administrator’s Typical Day?
Administrators are typically called in to offer technical support for teams working on a project. Support might mean technical troubleshooting or the development and explanation of technological strategy with regards to the project goals and means.
What Is Voip?
VOIP :Short for Voice Over Internet Protocol, a category of hardware and software that enables people to use the Internet as the transmission medium for telephone calls by sending voice data in packets using IP rather than by traditional circuit transmissions.
What Is Loop Back?
Loopback address is 127.0.0.1, An address that sends outgoing signals back to the same computer for testing.
What Is Proxy Server?
A proxy server is a computer that acts as a gateway between a local network (e.g., all the computers at one company or in one building) and a larger-scale network such as the Internet. Proxy servers provide increased performance and security. In some cases, they monitor employees’ use of outside resources.