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Cloud Computing
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Cloud Computing
The National Institute of Standards and Technology (NIST) defines ___ as:

A model for enabling convenient, on-demand network access to a shared pool of configurable computing resources such as networks, servers, storage, applications, and services, that can be rapidly provisioned and released with minimal management effort or service provider interaction.
Cloud makes reference to two concepts: what are they?
Abstraction and virtualization
What is abstraction?
A process in which specific details are hidden or ignored to simplify or generalize something
What is virtualization?
The process in which software manages hardware resources of physical hosts, so those resources can be used more efficiently by multiple virtualized guest systems
What is serverless abstraction?
is the notion in cloud computing that software can be totally separated from the hardware servers that it runs on.
What is serverless abstraction?
Users can execute an
application without having to provision and manage the server where it resides.
SaaS (software as a service)
in this cloud service model, different type of applications are offered to the customer as a service on-demand (Slack)
SaaS (software as a service)
In this cloud service type, on a cloud a single instance of the service is run and multiple end-users can access the services simultaneously
SaaS (software as a service)
In this cloud service model:

The customers need not invest in servers or software licenses, while for the provider the costs are lowered, as only a single application needs to be hosted and maintained.
Examples of companies offering SaaS
Google, SalesForce, Microsoft
PaaS (platform as a service)In this cloud service model: a layer of software or development environment is encapsulated and offered as a service over which other higher level of services can be built.PaaS (platform as a service)in this cloud service model the customer can build their own applications on the provider's infrastructurePaaS (platform as a service)in this cloud service model: it delivers a computing platform and/or solution stack as a service, often consuming cloud infrastructure and sustaining cloud applications.PaaS (platform as a service)In this cloud service model, Developers are less constrained by resources such as memory and processing power.In which cloud service model can you use existing skills with Microsoft Visual Studio and Microsoft?PaaS (platform as a service)In _, Customized applications and tools are built that improve developer productivity on behalf of the entire engineering organizationPaaS (platform as a service)Name two examples of popular PaaSGoogle's App Engine, Force.comIn _, this cloud service model provides basic computing capabilities and storage as standardized services over the network.IaaS (infrastructure as a service)In _, this cloud service model provides Servers, storage systems, data center space, networking equipment, etc., are pooled and are available to the usersIaaS (infrastructure as a service)In _, this cloud service model has the capability to provision processing, networks, storage and other fundamental computing resources where the consumer is able to deploy and run software.IaaS (infrastructure as a service)Companies can choose to optimize their infrastructure by adopting an (which cloud service model)Iaas (infrastructure as a service)In this cloud service model, the customer typically deploys his own software on the infrastructure provided by the _ providerIaaS (infrastructure as a service)Name 3 common examples of IaasAmazon, GoGrid, 3 TeraPortability of applications, Maturity of systems management tools, and Integration across cloud boundary extension of internal security models are challenges of which cloud service model?IaaS (infrastructure as a service)In _, this cloud deployment model delivers superior economies of scale to customers as the infrastructure costs are spread among a mix of users, giving each individual client an attractive low-cost, "pay-as-you-go" modelpublic cloudIn this cloud deployment model, the infrastructure pool is shared by all the customers with limited configuration, security protections, and availability diversitypublic cloudWhat is the main advantage of a public cloud?The main advantage of a public cloud is they may be larger than an enterprise cloud, thus providing scalability seamlessly on demand.The main aim of _ is to address concerns on data security and offer greater control, which is absent in a public cloudprivate cloudprivate cloudthis type of cloud deployment model is built exclusively for a single enterprisewhat are the 2 types of private cloudson-premise and externally hosted private cloudsthis private cloud model is limited in size and scalability but has more standardized processes and protectionon-premise private cloudthis specific type of private cloud is hosted within one's own data center.on-premise private cloudthis type of private cloud is best suited for applications which require complete security, control, and configurability of the infrastructure.on-premise private cloudThis type of private cloud is hosted externally with a cloud providerexternally hosted private cloudThis type of private cloud is facilitated with an exclusive cloud environment with a full guarantee of privacy and security.externally hosted private cloudthis type of private cloud is best suited for enterprises that don't prefer a public cloud due to the sharing of physical resourcesexternally hosted private cloudWith a _ cloud, service providers can utilize third party cloud providers in a full or partial manner, thus increasing the flexibility of computinghybrid cloudthe hybrid cloud is a combination of?public and private cloudsThis cloud deployment model is well suited for providing on-demand, externally provisioned scale. The ability to amplify a private cloud with the resources of a public cloud can be used to manage any unexpected growth in the workload.hybrid cloudthis cloud deployment model is a hybrid form of private cloud built and operated specifically for a targeted organization and communities.community cloudthis cloud deployment model is a multi-tenant cloud service model, which is shared among various organizations and is managed, governed and secured commonly by all the participating organizations or by a third partycommunity cloudThe objective of this cloud deployment model is to have participating organizations realize the benefits of a public cloud along with the added level of security, privacy and policy compliance usually associated with a private cloudcommunity cloudcloud community models can either be _ or _ premiseson or offIn this cloud deployment model, the user decides which data to store, and which to delete or modifypersonal cloudIn this cloud deployment model, while the data is accessible over the network, nobody can access or use your data without your permissionpersonal cloudthis benefit of cloud computing makes it easier for an organization to scale their services according to the demand of clientsscalabilitythis benefit of cloud computing states that The entire system can be fully functional in a matter of a few minutesquick deploymentthis benefit of cloud computing states: Once users register on the cloud, they can access their information from anywhere via an Internet connectioneasy to access informationthis benefit of cloud computing states that cloud users don't have to make additional efforts to customize and integrate their applications.automatic software integrationthis benefit of cloud computing states Since all the data is stored on the cloud, backing it up and restoring it is relatively easier than storing the data on a physical device.backup and recoverythis benefit of cloud computing states storing information on the cloud provides an almost unlimited storage capacity.unlimited storagethis benefit of cloud computing describes how cloud computing is probably the most cost effective way to use, maintain, and upgrade applications.cost efficiencyIaaSThis cloud service model has the capability to provision processing, networks, storage and other fundamental computing resources where the consumer is able to deploy and run software.