AZ-900 Exam Preparation- Describe Cloud Concepts ALL SOLUTIONS LATEST EDITION AID GRADE A+

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What is cloud computing? A concept of computing where processing and storage are performed elsewhere over a network connection rather than locally. Why is Cloud Computing typically cheaper to use? ... Instead of maintaining CPUs and storage in your datacentre, you rent them for the time that you need them (on a pay as you go model). The cloud provider takes care of maintaining the underlying infrastructure for you. -lower your operating costs. -Run your infrastructure more efficiently. -Scale as your business needs change. Why should I move to the cloud? To power your services and deliver innovative and novel user experiences more quickly, the cloud provides on-demand access to: -A nearly limitless pool of raw compute, storage, and networking components. -Speech recognition and other cognitive services that help make your application stand out from the crowd. -Analytics services that deliver telemetry data from your software and devices. What are some cloud computing advantages? -Reliability -Scalability -Vertically -Horizontally -Elasticity -Agility -Geo-distribution -Disaster recovery Reliability Depending on the service-level agreement that you choose, your cloud-based applications can provide a continuous user experience with no apparent downtime even when things go wrong. Scalability Applications in the cloud can be scaled in two ways, while taking advantage of autoscaling. -Vertically: Computing capacity can be increased by adding RAM or CPUs to a virtual machine -Horizontally: Computing capacity can be increased by adding instances of a resource, such as adding more virtual machines to your configurations Elasticity cloud-based applications can be configured to always have the resources they need. Agility Cloud-based resources can be deployed and configured quickly as your application requirements change. Geo Distribution Applications and data can be deployed to regional data centres around the globe, so your customers always have the best performance in their region. Disaster Recovery By taking advantage of cloud-based backup services, data replication, and geo-distribution, you can deploy your applications with the confidence that comes form knowing that your data is safe in the event that disaster should occur. What are cloud service models? -infrastructure as a service (IaaS) -platform as a service (PaaS), CONTINUED.. [Show More]

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