CompTIA A+ remains the gold standard for entry-level IT certifications and we are pleased to release our newest version, the 2025 CompTIA A+ Certification. With the launch of the new 220-1201 and 220-1202 exams, the 2025 version of A+ brings modernized content to reflect the latest tools, systems, and methodologies in the world of information […]| ITU Online IT Training
Definition: Packet Sniffer A packet sniffer is a network monitoring tool that captures, analyzes, and inspects data packets traveling across a network. It allows network administrators, security professionals, and developers to examine network traffic for performance optimization, troubleshooting, and security analysis. Packet sniffers can be hardware devices or software applications that intercept network packets in […]| ITU Online IT Training
Definition: Inverse Multiplexing Inverse Multiplexing (IMUX) is a technique that splits a high-speed data stream into multiple lower-speed channels for transmission and then recombines them at the receiving end. Unlike traditional multiplexing, which combines multiple signals into a single high-speed channel, inverse multiplexing distributes a single data stream across multiple connections to optimize bandwidth utilization […]| ITU Online IT Training
Definition: Narrowband Narrowband refers to a communication channel or transmission method that operates within a small bandwidth, typically less than 25 kHz. It is used for transmitting data, voice, or signals over long distances while consuming minimal bandwidth. Narrowband technology is widely utilized in radio communications, telemetry, low-power IoT networks, and legacy telecommunication systems. Understanding […]| ITU Online IT Training
Definition: Network Emulation Network emulation is the process of replicating the behavior of real-world networks in a controlled test environment. It simulates network conditions such as latency, packet loss, jitter, bandwidth constraints, and congestion to evaluate how applications, devices, or services perform under different network conditions. Unlike network simulation, which models network behavior mathematically, network […]| ITU Online IT Training
Definition: Root Domain A root domain is the highest level of a website’s hierarchy, consisting of a unique domain name and a top-level domain (TLD), such as example.com. It is the foundational part of a website’s URL structure and is used to organize and manage subdomains and pages under it. The root domain does not […]| ITU Online IT Training
Definition: Off-Page SEO Off-Page SEO refers to all the activities performed outside a website to improve its search engine rankings. It involves strategies such as link building, social media marketing, influencer outreach, and brand mentions to enhance a website’s authority, credibility, and visibility in search engine results pages (SERPs). Understanding Off-Page SEO While On-Page SEO […]| ITU Online IT Training
Definition: Logical Address Space Logical address space refers to the set of addresses that a program can use to access memory during execution. It is the range of memory locations that an operating system and CPU allow a process to reference, independent of the physical memory addresses. The logical address is generated by the CPU […]| ITU Online IT Training
Definition: Linux Distribution A Linux Distribution (Linux Distro) is an operating system built on the Linux kernel, bundled with system utilities, software packages, and a package management system. It provides a complete environment for users and developers to interact with Linux-based systems. Linux distributions vary in design, target audience, and use cases, catering to desktop […]| ITU Online IT Training
Definition: Queueing Networks A Queueing Network is a system consisting of multiple interconnected queues, where entities such as customers, data packets, jobs, or requests move between different service points for processing. These networks are used to model and analyze the performance of computer systems, telecommunication networks, manufacturing processes, and service systems. Queueing networks help evaluate […]| ITU Online IT Training
Definition: Qubit A Qubit (Quantum Bit) is the fundamental unit of information in quantum computing. Unlike a classical bit, which can only be 0 or 1, a qubit can exist in a superposition of both 0 and 1 states simultaneously. This unique property allows quantum computers to perform complex calculations exponentially faster than classical computers […]| ITU Online IT Training
Definition: Containerization Security Containerization Security refers to the practices, tools, and strategies used to protect containerized applications and environments from threats, vulnerabilities, and unauthorized access. It involves securing the entire container lifecycle, including image creation, deployment, runtime protection, and orchestration security. With the rise of Docker, Kubernetes, and cloud-native applications, containerization has become a popular […]| ITU Online IT Training
IT training courses in programming, network security, IT engineering, business & project management, accounting, online marketing and more...| ITU Online IT Training
GIMP (GNU Image Manipulation Program) is a free and open-source raster graphics editor used for tasks such as photo retouching, image editing, and image| ITU Online IT Training