Private cloud - a cloud computing environment dedicated to a single organization., Public cloud - defined as computing services offered by third-party providers over the public Internet, making them available to anyone who wants to use or purchase them., Hybrid cloud - computing environment that combines an on-premises datacenter (also called a private cloud) with a public cloud, allowing data and applications to be shared between them., Community cloud - collaborative effort in which infrastructure is shared between several organizations from a specific community with common concerns, whether managed internally or by a third party and hosted internally or externally., IaaS - cloud computing model that provides on-demand access to computing resources such as servers, storage, networking, and virtualization., SaaS - allows users to connect to and use cloud-based apps over the Internet. Common examples are email, calendaring, and office tools (such as Microsoft Office 365)., PaaS - a cloud computing model that provides customers a complete cloud platform—hardware, software, and infrastructure—for developing, running, and managing applications without the cost, complexity, and inflexibility that often comes with building and maintaining that platform on-premises., Shared resource - also known as network resources, refer to computer data, information, or hardware devices that can be easily accessed from a remote computer through a local area network (LAN) or enterprise intranet., Metered utilization - is a pricing model where customers are charged based on their consumption rather than upfront for a flat fee., Rapid elasticity - The cloud's capability to scale quickly to meet demand., High availability - Quality of computing infrastructure that allows it to continue functioning, even when some of its components fail. This is important for mission-critical systems that cannot tolerate interruption in service, and any downtime can cause damage or result in financial loss., File synchronization - an application that keeps files in different locations up to date through the cloud., VDI on premises - (Virtual Desktop Infrastructure)hosts the data in-house, keeping the IT environment., VDI in the cloud - the third-party provider hosts all data on their servers. They manage it for you while enabling you to leverage virtual technology without the need for a huge capital expenditure., Sandbox - environment is an isolated virtual machine in which potentially unsafe software code can execute without affecting network resources or local applications., Application virtualization - process that deceives a standard app into believing that it interfaces directly with an operating system's capacities when, in fact, it does not. This ruse requires a virtualization layer inserted between the app and the OS., Legacy software/OS - outdated computing software and/or hardware that is still in use. The system still meets the needs it was originally designed for, but doesn't allow for growth., Cross platform virtualization - a form of computer virtualization that allows software compiled for a specific instruction set and operating system to run unmodified on computers with different CPUs and/or operating systems, Resource requirements - four primary resources that a virtual machine needs in order to correctly function. These are CPU, memory, network, and hard disk., Security requirements - Isolate each virtual machine you have by installing a firewall. Only allow approved protocols to be deployed. Ensure that antivirus programs are installed on the virtual machines and kept current with updates. Virtual machines, like physical machines are at risk for viruses and worms.,

Cloud computing

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