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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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An essential skill set in today's IT environments. Learn cloud computing platforms
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Definition: Byzantine Agreement Byzantine Agreement, often referred to as Byzantine Fault Tolerance (BFT), is a consensus mechanism designed to ensure a reliable consensus in a distributed computing environment, even in the presence of faulty or malicious nodes, known as Byzantine nodes. This concept is derived from the Byzantine Generals’ Problem, an analogy that illustrates the …
Definition: Cloud Bursting Cloud bursting is a configuration set up between a private cloud and a public cloud that allows a system to scale up and extend its service capacity on-demand by “bursting” into the public cloud space when the demand exceeds the capacity of the private cloud. This approach is particularly useful for handling …
Definition: Execution Profile An execution profile is a comprehensive set of configurations and parameters that dictate how software, particularly in testing and development environments, is to run. It outlines the runtime environment, resources, and conditions under which a program or series of programs executes. This can include specifics about the hardware configuration, operating system settings, …
Definition: Virtual Machine Extension (VMX) Virtual Machine Extension (VMX), often associated with Intel Virtualization Technology (VT-x), refers to a set of processor hardware enhancements designed to facilitate the efficient execution of virtual machines. By providing support at the CPU level, VMX enables a hypervisor to run multiple operating systems simultaneously on a single physical machine, …
Definition: Ternary Operator The ternary operator is a conditional operator that provides a shorthand way of expressing conditional statements in many programming languages. It is called “ternary” because it involves three operands: a condition, a result for when the condition is true, and a result for when the condition is false. The syntax typically looks …
Definition: Integer Overflow Integer overflow occurs when an arithmetic operation attempts to create a numeric value that exceeds the range that can be represented with a given number of bits. For instance, in a system where integers are represented by 32 bits, the maximum representable unsigned integer is 2^32 – 1 (4,294,967,295). If an operation …
Definition: Network Storm A network storm refers to a situation in computer networks where an excessive amount of network traffic congests the network, severely degrading performance and potentially leading to a complete network failure. Network storms are often caused by uncontrolled broadcast traffic on a network segment, which can be triggered by faulty network devices, …
Definition: Triple Fault A triple fault occurs within the context of x86 architecture-based computer systems when the processor encounters a third consecutive exception while trying to invoke the Double Fault exception handler. In simpler terms, a triple fault happens when the CPU tries to deal with an exception (an error or unexpected event), fails, encounters …
Definition: Multi-Version Concurrency Control Multi-Version Concurrency Control (MVCC) is a database optimization technique that allows multiple transactions to access the same database concurrently without interfering with each other. By creating and managing different versions of each database item, MVCC enables read operations to occur without locking, thereby increasing database throughput and performance while maintaining the …
Definition: Transactional Memory Transactional Memory (TM) refers to a concurrency control mechanism that simplifies the development of concurrent programs by allowing a set of memory operations to execute in an atomic block, known as a transaction. In essence, TM aims to make the memory operations within a transaction appear as a single, indivisible operation to …
Definition: Entity Relationship Model The Entity Relationship Model (ERM) is a conceptual tool primarily used in database design and systems analysis to describe the structure of data and its components within a system. ERM enables the representation of entities, their attributes, and relationships among them in a clear and structured manner, facilitating the process of …
Definition: Layered Networking Model A Layered Networking Model is an architectural framework used to understand and implement network communication by dividing the whole process into manageable layers. Each layer serves a specific purpose and interacts with the layers directly above and below it to facilitate the smooth transmission of data across a network. This model …
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