Cloud computing is a model for enabling ubiquitous, convenient, and on-demand network access to a shared pool of resources. These computing resources can be rapidly provisioned and released with minimal effort. The Cloud model is composed of three service models, seen below:Software as a Service (SaaS)
Vendors:Adobe Connect, ServiceNow, Google, Salesforce, Microsoft O365, MaaS360 Show
Common SaaS Use-Case:Replaces traditional on-device software. There are a wide variety of cases including Customer Relationship Management, Video Conferencing, Email, Collaboration, and more. SaaS services allow direct delivery of application level capabilities to the end user with very little requirement for IT support resources primarily focused on compliance management at the application layer. SaaS Model Customer Responsibilities include:
Platform as a Service (PaaS)
Vendors:ESRI Managed Services Cloud, MicroPact, Oracle Federal Cloud, Cloud.gov Common PaaS Use-Case:Increases developer productivity and utilization rates while also decreasing an application’s time-to-market. Consumers of PaaS services will need minimum IT services administration staff since management of the Operating Systems, Middleware, Databases are covered by the vendor. PaaS Model Customer Responsibilities include:
Infrastructure as a Service (IaaS)Deploy:
Vendors:Amazon Web Services, Microsoft, Azure, IBM SoftLayer, Virtustream, Akamai Common IaaS Use-Case:Extends current data center infrastructure for temporary workloads (e.g. increased Christmas holiday site traffic). Consumers of IaaS services will be required to have skilled IT professionals on staff or available via contract to manage and maintain Operating Systems, Middleware, Databases, Operations and Compliance Management. IaaS Model Customer Responsibilities include:
Shared Responsibility Model:SaaS
PaaS
IaaS
In which type of cloud computing model are the hardware resources managed and maintained by the cloud service provider?Infrastructure as a service (IaaS) is a cloud computing offering in which a vendor provides users access to computing resources such as storage, networking, and servers. Organizations use their own platforms and applications within a service provider's infrastructure.
In which of the cloud computing model virtualization is managed by the service provider?IaaS architecture
In an IaaS service model, a cloud provider hosts the infrastructure components that are traditionally present in an on-premises data center. This includes servers, storage and networking hardware, as well as the virtualization or hypervisor layer.
What is IaaS PaaS SaaS in cloud computing?IAAS gives access to the resources like virtual machines and virtual storage. PAAS give access to run time environment to deployment and development tools for application. SAAS give access to the end user. It is a service model that provides visualized computing resources over the internet.
Which of the following is a cloud computing service supporting hardware virtualization?AWS is one of the most successful cloud-based businesses, which is a type of infrastructure as a service and lets you rent virtual computers on its own infrastructure.
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