U Flashcards
UAT
User Acceptance Testing
The final stage of any development process to determine that the software does what it was designed to do in real-world situations. Actual users test the software to determine if it does what it was designed to do in real-world situations, validating changes made and assessing adherence to their organization’s business requirements.
UAV
Unmanned Aerial Vehicle
AKA drone
An aircraft without any human pilot, crew, or passengers on board. They can be fully or partially autonomous but are more often controlled remotely by a human pilot.
UDP
User Datagram Protocol
A connectionless communication protocol for transporting packets across networks.
UEFI
Unified Extensible Firmware Interface
Low-level software that is run first when a computer is started. it initializes the hardware, then loads and starts the main OS.
It differs from BIOS in that it stores all data about initialization and startup in a .efi file, instead of storing it on the firmware.
It also supports more drive storage, faster boot time, offers more security (Secure Boot), and can run in either 32bit or 64bit mode. (BIOS runs in 16bit mode.)
UEM
Unified Endpoint Management
Software that enables IT and security teams to monitor, manage and secure all of an organization’s end-user devices, such as desktops and laptops, smartphones, tablets, wearables and more, in a consistent manner with a single tool, regardless of operating system or location.
It focuses on tasks like software deployment, configuration management, and patching to maintain and manage endpoints efficiently.
It allows IT to manage, secure, and deploy corporate resources and applications on any device from a single console.
UPS
Uninterruptable Power Supply
A type of continual power system that provides automated backup electric power to a load when the input power source or mains power fails. It provides near-instantaneous protection from input power interruptions by switching to energy stored in battery packs, supercapacitors, or flywheels.
URI
Uniform Resource Identifier
A sequence of characters that refers to the identity of a resource, thereby allowing resources to be distinguished from one another. It enables the protocols over the internet to conduct the interactions between and among resources.
URIs take the form of strings of characters that server as identifiers: names and addresses to connected devices and other resources.
URL
Universal Resource Locator
The most common type of URI.
It is a unique identifier used to locate a resource on the Internet. It is also referred to as a web address.
URLs consist of multiple parts – including a protocol and domain name – that tell a web browser how and where to retrieve a resource.
USB
Universal Serial Bus
A standard plug-and-play interface that allows computers and peripheral devices to connect with each other, transfer data, and share a power source.
USB OTG
Universal Serial Bus On The Go
An adapter that has a female USB-A on one end, and a male USB-C port on the other. So you can plug your USB into your smartphone, or whatever.
A specification that allows USB devices, such as tablets or smartphones, to also act as a host, allowing other USB devices, such as USB flash drives, digital cameras, mouse or keyboards, to be attached to them.
This allows you to upload photos to your phone, connect a keyboard, connect a printer, copy information between devices, etc.
UTM
Unified Threat Management
A device that consolidates multiple/all IT security services into one device, potentially simplifying the protection of the network.
This includes monitoring, antivirus, antispam, content filtering, web filtering, CSU/DSU functionality, router/switch functionality, bandwidth shaper, VPN endpoint, and more.
UTP
Unshielded Twisted Pair
A ubiquitous type of copper cabling used in telephone wiring and LANs.
Difference between URL and URI
A URI is an identifier that can identify any type of resource, not just those on the internet. It is often used in XML, tag library files, and other files such as JSTL and XSTL.
A URL is used specifically to locate a resource on the internet. It is a form of URI.
