Term 361
IPv6 global unicast
An IPv6 global unicast address is a public, globally unique IP address assigned to a single network interface, allowing direct communication over the Internet.
Acronym study
Terms 361–390 of 826 220-1201 acronyms and key terms. Each entry includes a plain-English definition and a link to the full 800-word glossary page with exam context and practice questions.
Term 361
An IPv6 global unicast address is a public, globally unique IP address assigned to a single network interface, allowing direct communication over the Internet.
Term 362
An IPv6 link-local address is a self-assigned, non-routable address used for communication between devices on the same network segment without needing a central server.
Term 363
Jitter is the unwanted variation in the delay of data packet delivery over a network, causing inconsistent communication timing.
Term 364
Journalctl is a command-line tool used to view and query logs collected by the systemd journal, which stores system and application messages on Linux systems.
Term 365
A Keyboard-Video-Mouse (KVM) is a hardware device that allows you to control multiple computers using a single keyboard, monitor, and mouse.
Term 366
Kinesis Data Streams is a managed service that collects and processes large streams of data records in real time, allowing applications to analyze and react to incoming information as it arrives.
Term 367
KMS (Key Management Service) is a Microsoft technology that automates volume licensing activation for Windows and Office products within an organization's network.
Term 368
A KVM switch is a hardware device that allows you to control multiple computers from a single keyboard, monitor, and mouse.
Term 369
Local Area Network — a network confined to a single physical location such as an office, building, or campus.
Term 370
A portable personal computer that integrates a display, keyboard, touchpad, battery, and internal components into a single clamshell device for mobile computing.
Term 371
A rechargeable power source that provides electrical energy to a laptop computer when it is not connected to an AC power outlet.
Term 372
A laser printer is a high-speed, high-volume output device that uses a laser beam and toner to produce precise text and graphics on paper.
Term 373
Latency is the time delay between a request being sent over a network and the response being received, often measured in milliseconds.
Term 374
Latency routing is a DNS-based traffic management method that directs user requests to the server location which can provide the lowest network latency for that specific user.
Term 375
A Layer 2 switch is a network device that forwards data frames based on the MAC addresses found in the frame headers, operating within a single local area network segment.
Term 376
A network device that combines the high-speed switching of a Layer 2 switch with the routing capabilities of a router, allowing it to forward traffic based on both MAC and IP addresses.
Term 377
An LCD display is a flat-panel screen that uses liquid crystals sandwiched between polarized glass layers to create images when electric current passes through them.
Term 378
A dedicated, uncontended telecommunications circuit rented from a service provider that provides a fixed, symmetrical bandwidth connection between two locations.
Term 379
Least privilege is a security principle that means giving users, systems, or programs only the minimum permissions they need to do their job and nothing more.
Term 380
An LED display is a flat-panel screen that uses an array of light-emitting diodes as pixels for image generation, commonly used in mobile devices, monitors, and televisions.
Term 381
Licensing in IT refers to the legal agreements and permissions that govern how software, hardware, or digital content can be used, distributed, and managed.
Term 382
Lifecycle management is the process of overseeing data from its creation or capture through its use, maintenance, and eventual deletion or archiving.
Term 383
A lifecycle rule is a set of automated policies that move or delete data based on its age or other conditions, helping manage storage costs and compliance.
Term 384
A light-emitting diode (LED) is a semiconductor device that emits light when an electric current passes through it, commonly used as an indicator or illumination source in electronic devices.
Term 385
Link Aggregation Control Protocol (LACP) is a standard protocol that automatically bundles multiple physical network links into a single logical link to increase bandwidth and provide redundancy.
Term 386
Link Layer Discovery Protocol (LLDP) is a vendor-neutral protocol used by network devices to advertise their identity, capabilities, and neighbors over a local area network.
Term 387
Liquid cooling is a method of removing heat from computer components by circulating a liquid coolant through a closed loop system instead of using air-based fans alone.
Term 388
A flat-panel display technology that uses liquid crystals manipulated by electric current to produce images, commonly used in monitors and laptop screens.
Term 389
A load balancer is a device or software that distributes incoming network traffic across multiple servers so no single server gets overwhelmed.
Term 390
A Local Area Network (LAN) connects computers and devices within a small physical area, such as a home, office, or school, allowing them to share resources like files, printers, and internet access.