Microsoft teams admin interview questions
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[Microsoft teams admin interview questions
A system administrator is someone who is in charge of the maintenance, configuration, and reliable running of computer systems, particularly multi-user computers like servers. A person who oversees the operation of a computer system or a specific form of electronic communication. He is in charge of computer system care, configuration, and reliable functioning. System Administrator responsibilities include installing, configuring, and troubleshooting software and hardware upgrades, application deployments, and infrastructure improvements.
Windows Server is an operating system that employs a centralised computer to enable users and machines linked to a network with particular capabilities and predetermined rules. As part of a database controlled by a domain controller, Windows Domain is a consolidated location for user accounts, computers, printers, and security features.
It can also enforce security regulations and deploy applications to domain-connected computers. A lingering object can be created if an object is deleted from Active Directory while the Domain Controller is offline.
When an object is delete from Active Directory, a temporary Tomb Stone is created, which must be copied by the Domain Controller before it expires.
Garbage Collection is a feature of Active Directory that allows you to clear up space. This is done every 12 hours by default defrag. Within Domain Controller, the System Volume folder contains a copy of domain files located on a local hard drive. For example, user logon scripts and Windows Group Policy are share for the purpose of replication across domains.
For instance, RAID 1 stores identical data on two or more discs redundancy. RAID 0: data is divided evenly across two or more discs to increase performance no redundancy. IntelliMirror is a feature of the Windows Server OS that helps manage user data, computer information, applications, and settings. User Group Policy, which specifies business responsibilities, group memberships, and locations, uses this. In Active Directory, network administrators can utilise group policy to regulate the working environment of users and computer accounts.
It gives administrators a central location to manage and modify operating systems, programmes, and user preferences. It allows us to increase our productivity if we use it correctly. On a single hardware platform, you can run numerous copies of Windows Server. This is generally accomplish via third-party applications. A domain is a logical collection of network objects, such as computers, users, and devices, that share an active directory database.
A tree is a collection of domains in a Microsoft active directory network, each with exactly one parent, resulting in a hierarchical tree structure, while a forest is a collection of active directory trees. Users will be able to access resources by computer name rather than IP address as a result of this.
It is an operating system that employs a centralised computer to provide users and computers connected to a network with particular functions and predetermined rules. If you want your computer to remember the names and IP addresses of other machines in your network, for example.
When an object is destroy from Active Directory, a temporary Tombstone is create, which must be replicate by the domain controller before it expires.
Specifically, they appear to arise after some changes are done to the folders following the creation of system backups.
Hackers may get remote control of your machine and steal your sensitive information or data. It most commonly occurs when your system is directly connect to the internet or a huge network.
In that situation, a firewall should be install on your computer to safeguard you from unauthorise access. It is either available in the software or in the hardware form if you have a single pc then software firewall can do the work but when you want to protect a large corporate you have to install hardware firewall so as to protect their system from such attacks.
To safeguard the system from computer viruses, we utilize antivirus software. It actively monitors for any malware threats from various sources while you are using your system.
If it detects any virus risks, it attempts to clean or quarantine the infection, ensuring the safety of your system and data. A domain controller Dc is a Windows-based computer system that manages user accounts and stores them in a central database. It enables the system administrator to grant or deny users access to system resources including printers, documents, folders, network locations, and so on. It is totally controlled by the operating system, allowing the client and server to run on the same machine and communicate with one another.
It is not physically connected to a network, but it is beneficial in that it provides an interface for IT workers to test IP applications without having to worry about broken or corrupted discs or hardware. The performance and security of this server are improved since it may be used to prohibit employees from visiting undesirable and distracting websites. It saves vital information such as the location of applications, files, and so on. It is a type of shared folder that keeps information about group policies, or it can be said that it contains public files of domain controllers that domain users can access.
Its most notable function is that it is used to send domain members policy and login scripts. VOIP is significant because it encourages users to embrace current approaches rather than rely on outdated infrastructure. It allows users to make use of the transmission medium by providing voice packets that are intend for telephone calls.
As the name implies, it is used to deploy Windows operating systems i. Within a workgroup, there is a specific system that has a collection of systems, each with its own set of rules and local user logins. In contrast, in a domain, the centralised authentication server, which is a collection of systems, specifies the rules.
The LDAP light-weight directory access protocol is used to name objects in an Active Directory AD and to make them widely available for management and query applications. Point-to-point protocol PPP is an acronym for point-to-point protocol.
This protocol allows two computers routers to interact with one another. It is a type of mechanism that attackers employ to gain unauthorised access to a system. We can prevent this by utilising special routers and firewalls to do packet filtering, allowing only packets with known formats to reach the network.
It is a high-speed data transmission technology that operates at the physical and data connection layers of the OSI model. For data transfer in the network, it employs frames. Domain admin groups: domain admin group members have complete power over the domain. We must first do a non-authoritative restore before we can perform an authoritative restore. We already know that authoritative restoration can increase the version number of attributes, therefore this will cause us to restore an item in the directory.
When we talk about a non-authoritative restore to detect the changes since the last backup, the replication partners will be contacted after a domain controller is brought back online. Concurrency and sharing are supported by this server object.
The Tracert, also known as traceroute, allows you to see exactly which routers you interact with as you move along the chain of connections to reach your final destination. If you are unable to ping your final destination, a tracert can be used to determine where the chain of connections came to a halt. It enables applications to connect with one another through a LAN, often known as a local area network. Both connection-based and connectionless communication are supported.
Flow control and error detection are implement. It is one of the quickest and most effective regimens available. We should only use it on smaller networks because it relies more on broadcast packets than TCP or IP, making it inappropriate for WANs wide area networks. RSVP stands for Resource Reservation Protocol, and as the name implies, it is used to reserve resources across a network. It then goes around the network, visiting each node. The admission control module and the policy module are two local modules for resource reservation.
The admittance module determines whether there are sufficient resources available. The policy module, on the other hand, verifies if establishing a reservation is permitted. The dynamic host configuration protocol DHCP stands for dynamic host configuration protocol. The IP address is assign to computers using this protocol.
So, when we use the DHCP protocol, whenever a computer is connect to a network, its IP address is changed, or in other words, we can say that it will have different IP addresses.
In some cases, the IP address is also change when the computer is in the network, so we can say that a clearcut advantage of the DHCP protocol is that rather than using the administrator for managing the Ip address, we can say that the IP address is change when the computer is in the network. Both the hub and the switch are roughly the same.
They both have a larger number of potential connections and are used for the same basic purpose to create a network. The only difference that differentiates them is the way they handle the connections in case of hub they broadcast all the data to every port and hence can make serious security and reliability concerns, as well as there, will occur a number of collisions on that network.
On the other side when we talk about switches the connections are create dynamically so the requesting portal only receives the information that is design for it. On the other hand, switches create connections between ports as needed. When we talk about the TCP, though, everyone is on the same page. TCP requires assurance from the other side that the message has been receive. When communicating with the inside of a secured network, we employ a port forwarding table within the router or other connection management device to allow certain traffic to be automatically forwarded on to a given destination.
Most likely, it does not enable direct connection to the server from outside your network. It was first released in By typing powershell, we may access power shell. It works with both batch and powershell commands. It allows users to quickly switch between functions by allowing them to create aliases for cmdlets and scripts. It can also run a script that has a series of cmdlets. It is built on the. NET framework, which gives it access to programming libraries and allows it to run a wide range of programmes.
It can connect to Microsoft cloud products and interacts directly with WMI, and it supports Linux-based systems. By putting cmd into run, we can launch a command prompt. It cannot run batch and powershell commands at the same time; it can only run batch commands. The resulting output is in the form of text. We are unable to transmit or send output from one command to another. When we wish to perform a specific command, the previous command must have completed.