A logical network is one that appears to the user as a single, separate entity although it might in fact be either an entity created from mutliple networks or just a part of a larger network. A logical network is defined by its IP addressing scheme.

A configured partition of a traditional network hardware, or "physical," router. It replicates the hardware's functionality, creating multiple routing domains within a single router. 

In IBM's Systems Network Architecture (SNA), a LU identifies an end user in an SNA network . By end user, IBM means either a human being that is interacting with the network or an application program that is indirectly representing such an end user.

Logistics is the management of the flow of resources between the point of origin and the point of consumption in order to meet some requirements, for example, of customers or corporations.

IT solutions that help efficient management of the flow of goods tracking and sharing information with respective parties in realtime to meet some requirements of customers or corporations.

Logparser is a command line utility, developed by Microsoft and originally written to automate tests for IIS logging. Microsoft describes Logparser as a powerful, versatile tool that provides universal query access to text-based data such as log files, XML files and CSV files, as well as key data sources on the Windows operating system such as the Event Log, the Registry, the file system, and Active Directory.

LogRhythm’s security information and event management (SIEM) solution unifies Security Information and Event Management, log management, network and endpoint monitoring and forensics, and security analytics.

Lombok is a Java library meant to simplify the development of Java code writing.

A test in which a signal in sent from a communications device and returned (looped back) to it as a way to determine whether the device is working right or as a way to pin down a failing node in a network. 

IBM Notes (formerly Lotus Notes) provides business collaboration functionality, including email, calendars, to do lists, contacts management, teamrooms, discussion forums, file sharing, microblogging, instant messaging, blogs, and user directories.

A script language for use in a Lotus Notes client program or as a scheduled agent within a Domino server program. It can be compared to JavaScript, the script language for use in a Web page. (JavaScript can also be used in Lotus Notes programs)

Low latency allows human-unnoticeable delays between an input being processed and the corresponding output providing real time characteristics. This can be especially important for internet connections utilizing services such as Trading, online gaming and VOIP.

A logical partition (also called an LPAR), is the division of a computer's resources such as processor, memory, and storage into smaller sets of resources so that each set of resources can be be run with its own instance of the operating system and applications.

Junior Level Linux Certification (LPIC-1) by Linux Professional Institute

Advanced Level Linux Certification (LPIC-2) by Linux Professional Institute

Senior Level Linux Certification (LPIC-3) by Linux Professional Institute