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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.
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Definition: Quiescent Consistency Quiescent consistency is a weak consistency model used in the context of distributed systems and concurrent programming to describe a system’s state when it is not undergoing any operations. Under this model, the system is considered consistent if, after all operations have ceased (reaching a quiescent state), the system’s state is consistent …
Definition: Linearizability Linearizability is a consistency model for designing and verifying concurrent systems, ensuring that operations on shared resources appear to be instantaneous and atomic, regardless of the system’s actual complex behavior. It is a strong form of consistency that provides a simple and intuitive understanding of system behavior by ensuring that operations appear to …
Definition: Distributed Ledger A distributed ledger is a type of database that is consensually shared and synchronized across multiple sites, institutions, or geographies, accessible by multiple people. It allows transactions to have public “witnesses,” thereby making a cyberattack more difficult because all the distributed instances need to be attacked simultaneously for the attack to be …
Definition: Quorum Consensus Quorum consensus in blockchain technology is a mechanism utilized to achieve agreement on a single state or value among distributed processes or systems, such as nodes in a blockchain network. It ensures that despite potential failures or malicious actors within the network, a consistent state can be maintained, thereby allowing the network …
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 …
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