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The management and upkeep of computer systems and networks, including installing software, monitoring performance, and ensuring security. System Adm inistration and Maintenance
An IT professional responsible for setting up, maintaining, and troubleshooting servers, networks, and systems. System Administrator (SysAdmin/SysOps)
The period during which a computer or system is operational and available. Uptime
The period when a system or service is unavailable or non-functional. Downtime
A network that connects computers within a limited area, such as a building or campus. LAN (Local Area Network)
A large network that covers a broad area, connecting multiple LANs. WAN (Wide Area Network)
Creating virtual versions of computer hardware, operating systems, or storage devices. Virtualization
A free, cross-platform virtualization tool for running multiple operating systems on a single computer. Oracle VirtualBox
A simulated computer environment that runs an operating system and applications as if it were a physical machine. Virtual Machine (VM)
Adds features like USB support, RDP (Remote Desktop Protocol), and disk encryption to VirtualBox. VirtualBox Extension Pack
A Microsoft protocol that allows users to remotely connect to another computer. RDP (Remote Desktop Protocol)
A network process that modifies IP address information to enable devices on a private network to access the internet. NAT (Network Address Translation)
A VirtualBox networking mode that allows communication only between the host and virtual machines. Host-only Network
A method for allocating IP addresses efficiently. Example: 192.168.56.0/24. CIDR (Classless Inter-Domain Routing)
VirtualBox tools that improve VM performance and enable features like clipboard sharing and seamless mouse integration. Guest Additions
Saved states of a VM that allow restoring it to a previous configuration. Snapshots
An OS designed for servers that manage network resources, provide centralized storage, and support multiple users. Server Operating System
A network model where client devices request services or resources from centralized servers. Client-Server Architecture
Microsoft’s enterprise server OS that supports application hosting, file storage, and network management. Microsoft Windows Server
Operating systems designed for end-users, such as Windows 10 or 11, for personal and professional computing. Windows Workstation OS
A software-based emulation of a physical computer running an OS. Virtual Machine (VM)
Installing software on local servers owned by an organization. On-Premise Deployment
Running software and services on remote servers accessed via the internet. Cloud Deployment
Combining on-premises and cloud resources for flexibility and control. Hybrid Deployment
Versions designed for different needs: Standard (limited virtualization) and Datacenter (unlimited virtualization). Windows Server Editions
Microsoft’s virtualization platform allowing multiple operating systems to run simultaneously. Hyper-V
A minimal installation of Windows Server without a GUI, managed through command-line or remote tools. Server Core
A full Windows Server installation with a graphical interface. Server with Desktop Experience
A browser-based management tool for administering servers, clusters, and PCs. Windows Admin Center
Extends Azure management and governance to servers anywhere—on-premises, other clouds, or the edge. Azure Arc
A command-line shell and scripting language for automation and configuration management in Windows. PowerShell
A suite of management tools for large-scale server monitoring, deployment, and configuration. System Center
A facility that houses computer systems and related components such as servers and storage systems. Datacenter
The number of virtual machines allowed under a given Windows Server license. Virtualization Rights
Microsoft’s directory service for Windows Server that manages users, computers, and resources in a network. Active Directory (AD)
The core AD service that provides authentication, authorization, and directory management. Active Directory Domain Services (AD DS)
A system that stores, organizes, and provides access to information about network objects (users, computers, etc.). Directory Service
A set of rules that define object types and their attributes within the directory (e.g., User, Computer). Schema
A searchable index containing information about all objects in an Active Directory forest. Global Catalog (GC)
Enables fast searches and data retrieval within Active Directory. Query and Index Mechanism
Synchronizes data across multiple domain controllers to ensure consistency. Replication Service
A collection of network objects (users, devices) that share the same security database. Domain
The top-level structure in AD that contains multiple domains sharing a common schema. Forest
A collection of one or more domains connected in a hierarchical structure. Tree
A container in AD used to organize users, computers, and resources for easier management. Organizational Unit (OU)
AD objects that can contain other objects (e.g., domains, OUs). Container Objects
AD objects that cannot contain other objects (e.g., users, computers, printers). Leaf Objects
A protocol used by AD to communicate with other directory services. Lightweight Directory Access Protocol (LDAP)
Representations of a network’s physical topology used to control replication traffic. Sites
A server that authenticates users and manages AD-related operations. Domain Controller (DC)
A service that authenticates users when they log into the domain. NetLogon
Issues and manages Kerberos authentication tickets for secure logins. KDS (Kerberos Key Distribution Center)
Handles data exchange and replication between different sites or servers. IsmServ (Intersite Messaging Service)
Synchronizes time across networked computers using the Network Time Protocol (NTP). W32Time Service
Allows users to log in once and access multiple systems without re-entering credentials. Single Sign-On (SSO)
Controls and encrypts access to sensitive information. Controls and encrypts access to sensitive information.
Manages digital certificates for network security and encryption. Certificate Services
Provides Single Sign-On across multiple systems or web applications. Directory Federation Services (DFS)
Translates human-readable domain names (e.g., google.com) into IP addresses that computers use to locate each other. Domain Name System (DNS)
A unique numerical identifier assigned to each device connected to a network. IP Address
A server that receives a DNS query from a client and looks up the corresponding IP address. DNS Recursor
The first step in DNS resolution; it directs queries to the appropriate top-level domain (TLD) servers. Root Nameserver
Handles top-level domains (e.g., .com, .org) and directs queries to the authoritative nameservers. TLD Nameserver
Contains actual DNS records and provides the final answer for domain queries. Authoritative Nameserver
Tracks down DNS information for clients and returns the IP address once found. Recursive Resolver
Temporarily stores DNS data to speed up future lookups. Caching
Automatically assigns IP addresses and network configurations to devices on a network. Dynamic Host Configuration Protocol (DHCP)
Distributes IP addresses and configuration settings to clients automatically. DHCP Server
Device that receives an IP address and network configuration from the DHCP server. DHCP Client
Forwards DHCP messages between clients and servers across different subnets. DHCP Relay
A Microsoft service that stores and manages users, computers, and network resources centrally. Active Directory (AD)
A container in AD that groups users, computers, and resources for easier management. Organizational Unit (OU)
A collection of users or computers with shared permissions to network resources. Security Group
A group used for sending emails to multiple users but not for assigning permissions. Distribution Group
Manages AD services, domain controllers, and directory configuration. Service Administrator
Manages the data stored within Active Directory. Data Administrator
Assigning limited administrative permissions to users or groups for specific AD tasks. Delegation of Control
Tool used to create, delete, and manage AD objects like users and groups. ADUC (Active Directory Users and Computers)
A command-line tool for automating and managing AD tasks. PowerShell
A modern interface for managing AD with built-in PowerShell integration. ADAC (Active Directory Administrative Center)
A set of rules that control user and computer configurations in an AD domain. Group Policy Object (GPO)
Stores GPO settings in Active Directory. Group Policy Container (GPC)
Stores policy files in the SYSVOL folder of domain controllers. Group Policy Template (GPT)
Applies GPOs when a computer starts up or a user logs in. Foreground Policy Application
Regular reapplication of policies after login or startup. Background Refresh
Prevents higher-level GPOs from affecting a particular OU. Block Inheritance
A GPO setting that overrides block inheritance. Enforced Policy
The order of GPO processing: Local → Site → Domain → OU. LSDOU
GPO settings that apply to computers regardless of the user logged in. Computer Configuration
GPO settings that apply to users regardless of which computer they use. User Configuration
Use clear naming, small targeted GPOs, and organized OU structures. Best Practices
Role that allows management of file servers and centralized storage. File and Storage Services
Provides scalable and fault-tolerant storage using grouped disks. Storage Spaces
Lets users store and access work files from multiple devices. Work Folders
Reduces storage space by removing duplicate data. Data Deduplication
Provides virtual disks accessible over a network. iSCSI Target Server
Protocol for sharing files, printers, and other resources over a network. Server Message Block (SMB)
Enables file sharing between Windows and Linux/Unix systems. Network File System (NFS)
GUI interface used to manage server tools and services. GUI interface used to manage server tools and services. GUI interface used to manage server tools and services. MMC Snap-in
A user account that’s authenticated centrally by Active Directory. Domain User
Defines and enforces settings or restrictions across user and computer accounts. Group Policy (GPO)
Hardware or software that delivers web content via HTTP/HTTPS. Web Server
Defines how data is transmitted between browsers and servers. HTTP (Hypertext Transfer Protocol)
Delivers files to browsers as-is. Static Web Server
Uses application servers and databases to generate web content dynamically. Dynamic Web Server
Indicates that the requested webpage was not found on the server. 404 Error
Microsoft’s web server for hosting websites and FTP services. IIS (Internet Information Services)
FTP (File Transfer Protocol) Allows uploading and downloading files between client and server.
The process of storing and serving website files to users online. Hosting
The software that handles requests and sends responses for web content. HTTP Server
Step-by-step tool for installing or managing server roles like IIS or FTP. Configuration Wizard Configuration Wizard
Microsoft’s platform for building and running applications in multiple languages. .NET Framework
Framework for creating modern web applications using Model-View-Controller architecture. ASP.NET Core MVC
Design pattern separating data (Model), interface (View), and logic (Controller). MVC (Model-View-Controller)
Executes and manages .NET applications at runtime. CLR (Common Language Runtime)
Tools and libraries used to build .NET applications. SDK (Software Development Kit)
Uses Active Directory credentials for user authentication. Windows Authentication
Microsoft’s cloud platform for hosting web applications. Azure App Service
Integrated Development Environment (IDE) for coding, debugging, and deploying apps. Visual Studio
The process of publishing and hosting an application on a server or cloud. Deployment
Cross-platform web server used by ASP.NET Core applications. Kestrel
Microsoft’s implementation of WS-Management for remote system administration. WinRM (Windows Remote Management)
SOAP-based protocol that allows management across different systems. WS-Management Protocol
Command-line tool to configure and manage WinRM. Winrm.cmd
Tool for executing remote commands using WS-Management. Winrs.exe
Enables remote management of server hardware even if the OS is offline. IPMI (Intelligent Platform Management Interface)
Interface for accessing management data in Windows systems. WMI (Windows Management Instrumentation)
Allows administrators to manage Windows Server roles remotely. RSAT (Remote Server Administration Tools)
Security approach granting permissions based on assigned roles. Role-Based Access Control (RBAC)
Routine updates, monitoring, and security checks to ensure stability. Server Maintenance
Secure connections, automate updates, monitor performance, and document changes. Best Practices
Created by: user-1993607
 

 



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