Term 391
Local Connector
A local connector is a cable or port used to link a device like a computer to a nearby peripheral or network within the same immediate area.
Acronym study
Terms 391–420 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 391
A local connector is a cable or port used to link a device like a computer to a nearby peripheral or network within the same immediate area.
Term 392
A local route is a routing table entry for a directly connected network interface IP address, created automatically when an IP address is assigned to that interface.
Term 393
A local secondary index is a data structure in a database that allows you to query items using an alternate sort key, while keeping the same primary key, within a single table partition.
Term 394
Locally redundant storage (LRS) is a replication strategy that creates multiple synchronous copies of your data within a single data center in one region, protecting against local hardware failures.
Term 395
Location services are features on mobile devices that use GPS, Wi-Fi, cellular networks, or other sensors to determine the device's geographic location for apps and system functions.
Term 396
A logical volume is a virtual storage unit created from one or more physical hard drives that can be resized, moved, or snapshotted without disrupting the system.
Term 397
Long polling is a technique where a client requests data from a server, and the server holds the request open until new data is available or a timeout occurs, then sends a response and the client immediately reconnects.
Term 398
Long-Term Evolution (LTE) is a high-speed wireless communication standard for mobile phones and data terminals, often called 4G LTE.
Term 399
A loopback plug is a small device used to test network ports by sending a signal out and immediately receiving it back, verifying that the port is working without needing another device.
Term 400
Low-level formatting is the process of physically structuring a hard drive by creating tracks and sectors on the magnetic platters so the drive can store data.
Term 401
An LRS (Learning Record Store) is a system that collects, stores, and retrieves learning data from various training activities, often used to track progress in IT certification study programs.
Term 402
lvextend is a Linux command used to increase the size of an existing Logical Volume in LVM (Logical Volume Manager) without disrupting the data or the system.
Term 403
LVM (Logical Volume Manager) is a storage management system that allows you to create, resize, and manage disk partitions flexibly without needing to repartition the physical disk.
Term 404
M.2 is a small, internal connector used in computers to attach compact expansion cards like solid-state drives and Wi-Fi modules directly to the motherboard.
Term 405
MAC (Media Access Control) is a unique hardware identifier assigned to network interfaces for communication on a local network segment.
Term 406
A MAC address is a unique hardware identifier assigned to a network interface card that allows devices to communicate on a local network.
Term 407
A MAC address table is a data structure stored in a network switch that maps each of its ports to the MAC addresses of connected devices, enabling the switch to forward frames only to the correct destination.
Term 408
MAC filtering is a security practice that allows or denies network access to devices based on their unique Media Access Control (MAC) address.
Term 409
A Mail Exchange record is a type of DNS record that specifies which mail server is responsible for receiving email messages on behalf of a domain.
Term 410
A Main Distribution Frame is the central point in a building or campus where all external telecommunication cables are terminated and connected to internal network wiring.
Term 411
A maintenance kit is a collection of replacement parts, usually including a fuser and transfer roller, used to restore a laser printer to like-new performance after a certain number of pages.
Term 412
Malware is any software intentionally designed to cause damage, disrupt operations, steal data, or gain unauthorized access to computer systems.
Term 413
Malware symptoms are the observable signs on a computer or network that indicate a malicious program may have infected the system, such as slow performance, unexpected pop-ups, or unusual network activity.
Term 414
A Metropolitan Area Network (MAN) is a computer network that spans a geographic area larger than a local area network (LAN) but smaller than a wide area network (WAN), typically covering a city or a large campus.
Term 415
A cybersecurity service that continuously monitors an organization's network and systems to detect threats and respond to them quickly.
Term 416
A managed disk is a cloud-based virtual hard drive that Azure automatically creates, manages, and scales for your virtual machines so you don't have to worry about storage infrastructure.
Term 417
A Management Information Base (MIB) is a virtual database that stores information about network devices, organized as a hierarchical tree, which network management tools use to monitor and control those devices.
Term 418
A Management VLAN is a dedicated virtual local area network used to secure and separate administrative access to network devices like switches and routers from regular user data traffic.
Term 419
A mapped drive is a shortcut that assigns a drive letter to a shared folder on a network, making it appear as if it is a local storage device on your computer.
Term 420
The Maximum Transmission Unit (MTU) is the largest size of a data packet that can be sent over a network connection without needing to be broken into smaller pieces.