IT Glossary - W - ITU Online IT Training
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IT Glossary
Key Terms To Know In The IT Industry

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WebXR (Web-based Extended Reality)

An API that provides support for augmented reality (AR) and virtual reality (VR) experiences on the web.

You will find this term commonly used in Web Development, Extended Reality

Weighted Round Robin (WRR)

A network scheduling algorithm that assigns a weight to each server in a group, dictating the order and frequency of requests each server handles.

You will find this term commonly used in Networking

White Hat Hacker

Ethical hackers who use their skills to identify and fix security vulnerabilities in systems and networks.

You will find this term commonly used in Cybersecurity

Whitelist

A list of entities approved for access or privilege, such as email addresses, IP addresses, or applications, deemed secure and allowed to bypass certain security protocols.

You will find this term commonly used in Security

Wi-Fi

Wi-Fi is a wireless networking technology that enables devices to connect to local area networks (LANs) and access the internet using radio waves, typically based on IEEE 802.11 standards, providing wireless connectivity in homes, businesses, etc.

You will find this term commonly used in Networking, Wireless Communication, Internet

Wi-Fi 6

The sixth generation of Wi-Fi, offering faster speeds, increased capacity, and better performance in congested areas.

You will find this term commonly used in Networking

Wi-Fi 6E

An extension of Wi-Fi 6 that operates in the newly opened 6 GHz band, allowing for less interference and faster speeds.

You will find this term commonly used in Networking

Wi-Fi Alliance

An organization that promotes Wi-Fi technology and certifies Wi-Fi products for interoperability.

You will find this term commonly used in Networking

Wi-Fi Analytics

The use of data analysis tools and methodologies to gather and analyze data from Wi-Fi networks to understand user behavior, network performance, and usage patterns.

You will find this term commonly used in Networking/Web Analytics

Wi-Fi Calling

A service that allows voice calls to be made over a Wi-Fi network instead of using a cellular network.

You will find this term commonly used in Networking/Telecommunications

Wi-Fi Channel Bonding

Combining multiple Wi-Fi channels to increase the network bandwidth available for data transmission.

You will find this term commonly used in Networking

Wi-Fi Direct Printing

A technology that allows printing from devices without needing a Wi-Fi network connection, using Wi-Fi Direct to connect directly to the printer.

You will find this term commonly used in Networking

Wi-Fi Hotspot

A physical location where people can access the Internet, typically using Wi-Fi, via a wireless local area network (WLAN) with a router connected to an internet service provider.

You will find this term commonly used in Networking

Wi-Fi Mapping

The process of creating a map or layout of Wi-Fi signal strength and coverage in an area.

You will find this term commonly used in Networking

Wi-Fi Mesh

A system of interconnected Wi-Fi routers or nodes that ensure seamless wireless coverage throughout a large area.

You will find this term commonly used in Networking

Wi-Fi Positioning System (WPS)

A system used for geolocating a device using the characteristics of nearby Wi-Fi hotspots.

You will find this term commonly used in Networking

Wi-Fi Protected Access (WPA)

A security protocol and security certification program developed by the Wi-Fi Alliance to secure wireless computer networks.

You will find this term commonly used in Cybersecurity

Wi-Fi Protected Setup (WPS)

A network security standard aimed at making the setup of a secure wireless home network easier.

You will find this term commonly used in Wireless Security

Wi-Fi Range Extender

A device that amplifies an existing Wi-Fi signal to increase its range and coverage area.

You will find this term commonly used in Networking

Wi-Fi Roaming

The process of a wireless device moving seamlessly from one access point to another, with minimal or no interruption in connectivity.

You will find this term commonly used in Networking

Wide Area Network (WAN)

A network that connects multiple local area networks (LANs) over a large geographical area.

You will find this term commonly used in Networking

Widget

A small application or program that can be embedded and executed within a web page or user interface.

You will find this term commonly used in General IT/Web Development

Widget Toolkit

A collection of tools and libraries for creating graphical user interfaces (GUIs) for software applications.

You will find this term commonly used in Software Development

WiFi Direct

A technology that enables devices to connect to each other directly without the need for a traditional wireless access point.

You will find this term commonly used in Networking, Wireless Communication

Wiki

A website or database developed collaboratively by a community of users, allowing any user to add and edit content.

You will find this term commonly used in Web Development

Wildcard Certificate

A public key certificate used in SSL encryption that can be used with multiple subdomains of a domain.

You will find this term commonly used in Cybersecurity

Wildcard SSL Certificates

SSL certificates that secure a domain and an unlimited number of its subdomains.

You will find this term commonly used in Cybersecurity

WiMAX (Worldwide Interoperability for Microwave Access)

A wireless communication standard designed for providing high-speed internet and network services over long distances.

You will find this term commonly used in Networking

Windows Containers

Lightweight, executable units for developing, shipping, and running applications, isolated from each other and the host system.

You will find this term commonly used in General IT

Windows Deployment Services (WDS)

A server technology from Microsoft for network-based installation of Windows operating systems.

You will find this term commonly used in General IT

Windows Domain

A form of a computer network in which all user accounts, computers, printers and other security principals, are registered with a central database located on one or more clusters of central computers known as domain controllers.

You will find this term commonly used in Networking

Windows Integrated Authentication

A term used to refer to several authentication protocols used by Microsoft Windows systems, allowing users to log in with a single set of credentials.

You will find this term commonly used in Security

Windows Management Instrumentation (WMI)

A set of extensions to the Windows Driver Model that provides an operating system interface through which instrumented components provide information and notification.

You will find this term commonly used in General IT

Windows PowerShell

A command-line shell and scripting language designed for system administration and automation.

You will find this term commonly used in General IT

Windows Registry

A database that stores low-level settings for the Microsoft Windows operating system and for applications that opt to use the registry.

You will find this term commonly used in General IT

Windows Server

A series of Microsoft server operating systems designed to handle corporate networking, Internet hosting, databases, messaging, and other services.

You will find this term commonly used in General IT

Windows Virtual Desktop

A comprehensive desktop and app virtualization service running in the cloud, allowing secure remote work.

You will find this term commonly used in Virtualization

Wire Protocol

A standard method used in telecommunications networks to facilitate the wireless transmission of data.

You will find this term commonly used in Networking

Wired Equivalent Privacy (WEP)

An outdated security protocol for Wi-Fi networks, now considered insecure and replaced by WPA and WPA2.

You will find this term commonly used in Wireless Security

Wired Network

A network in which devices are connected to the Internet or each other using cables.

You will find this term commonly used in Networking

Wired Security

Security measures specific to wired networks, focusing on preventing unauthorized access and ensuring data integrity and confidentiality.

You will find this term commonly used in Networking Security

Wireframe

A visual guide that represents the skeletal framework of a website or application, used in planning a site's structure and functionality.

You will find this term commonly used in Web Design

Wireframe Modeling

A technique used in 3D modeling to create a visual representation of a three-dimensional object using only lines and vertices.

You will find this term commonly used in Web Design/3D Modeling

Wireless Access Point

A device that allows wireless devices to connect to a wired network using Wi-Fi.

You will find this term commonly used in Networking

Wireless Broadband

High-speed internet and data service delivered through a wireless connection over a wide area.

You will find this term commonly used in Networking

Wireless Charging

The process of charging a device's battery without a physical wired connection, using electromagnetic fields to transfer power.

You will find this term commonly used in General IT

Wireless Communication

Communication between devices using wireless signals instead of physical cables.

You will find this term commonly used in Networking

Wireless Display (WiDi)

A technology that allows a portable device or computer to send the display signal to a television or monitor wirelessly.

You will find this term commonly used in Networking

Wireless Fidelity (Wi-Fi)

A family of wireless network protocols, based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access.

You will find this term commonly used in Networking

Wireless LAN (WLAN)

A type of local area network that uses wireless communication to connect devices within a limited area.

You will find this term commonly used in Networking

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