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With an All-Access Pass, you get access to every current and future ITU course. Access over 2,500 hours of on-demand IT Training 24/7. With over 13,000 on-demand training videos and 19,000+ practice questions, you'll have the tools to excel in the critical IT skills needed to elevate your IT Career. Our All-Access pass is available in three affordable plans.
ITU provides a vast array of IT-focused on-demand training designed to help you excel in both entry-level and advanced IT skills. Browse our most popular training or take a deper dive into our robust catalog of training categories.
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Train for a globally recognized IT certification with our comprehensive CompTIA courses.
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Definition: Forward Secrecy Forward Secrecy (FS), also known as Perfect Forward Secrecy (PFS), is a security feature in cryptographic protocols that ensures that session keys used for encrypted communications are not compromised even if the server’s private key is compromised in the future. This means that each session key is unique and ephemeral, preventing any …
Definition: QBE (Query By Example) Query By Example (QBE) is a database query language for relational databases that allows users to retrieve data by providing a sample or template of the desired output. Instead of writing complex query syntax, users can fill out a form with examples of the data they seek, and the system …
Definition: Python async/await Python async/await is a syntactic feature introduced in Python 3.5 that enables writing asynchronous code using coroutines. It allows for non-blocking execution, enabling concurrent operations within a single thread, improving performance and responsiveness in applications such as web servers, network clients, and other I/O-bound tasks. Overview of Python async/await The async/await syntax …
Definition: Quick Edit Mode in Command Line Interfaces Quick Edit Mode in Command Line Interfaces (CLI) is a feature that allows users to easily select, copy, and paste text within the command line window using the mouse. This mode simplifies the process of interacting with the command line by enabling efficient text manipulation, improving user …
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Definition: Virtual Device Context (VDC) A Virtual Device Context (VDC) is a logical partitioning of network resources in a single physical network device, such as a switch or router, allowing it to function as multiple independent devices. Each VDC operates as a standalone entity with its own configuration, policies, and management, providing network segmentation and …
Definition: Function Overloading Function overloading is a programming concept that allows multiple functions to have the same name but differ in the type or number of their parameters. This feature, found in many statically-typed languages, enables the same function name to perform different tasks based on the input parameters. Overview of Function Overloading Function overloading …
Definition: Kubernetes Horizontal Pod Autoscaler (HPA) The Kubernetes Horizontal Pod Autoscaler (HPA) is a system that automatically adjusts the number of pod replicas in a Kubernetes cluster based on observed CPU utilization or other select metrics. This dynamic scaling helps ensure applications can handle varying loads efficiently without manual intervention. Overview of Kubernetes Horizontal Pod …
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Definition: Memory Overcommitment Memory overcommitment is a virtualization technique that allows a hypervisor to allocate more memory to virtual machines (VMs) than the physical memory available on the host system. This technique relies on the assumption that not all VMs will use their allocated memory simultaneously, thereby optimizing the utilization of physical memory resources and …
Definition: BranchCache BranchCache is a wide area network (WAN) bandwidth optimization technology introduced by Microsoft. It is designed to improve the efficiency and speed of accessing content over a WAN by locally caching frequently accessed data at branch offices or remote locations. This reduces the need for repeated data transfers from a central server, thereby …
Definition: Query Plan Cache A Query Plan Cache is a component in database management systems (DBMS) that stores execution plans for SQL queries. An execution plan is a detailed strategy created by the DBMS query optimizer, which outlines the most efficient way to execute a given query. By caching these plans, the DBMS can quickly …
Definition: Fast Boot Fast Boot is a feature found in many modern computers, particularly those running Windows operating systems, designed to reduce the time it takes for a computer to start up. It combines elements of a cold startup and a hibernation startup, allowing the system to boot up faster by saving the system state …
Definition: Geofencing Geofencing is a location-based service that creates a virtual geographic boundary around a specified area, using technologies such as GPS, RFID, Wi-Fi, or cellular data. When a mobile device or RFID tag enters or exits this boundary, the geofencing software triggers a predetermined action, such as sending an alert or notification, tracking movement, …
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