Which statement is true about cloud computing?
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A. B. C. D.C.
Cloud computing is a model for providing on-demand access to shared computing resources, such as servers, storage, applications, and services, over a network. It enables users to access these resources on a pay-per-use basis, without the need for upfront capital investment or ongoing maintenance costs.
Out of the given options, the statement that is true about cloud computing is option A: "It provides self-service, on-demand provisioning and a billing for corporate usage only."
Self-service means that users can request and configure the computing resources they need without having to go through a central IT department or service provider. On-demand provisioning means that users can access and use these resources as and when they need them, without having to wait for manual provisioning or deployment.
Billing for corporate usage only means that the cloud provider charges only for the actual resources used by the organization, rather than for the entire infrastructure or facility. This enables organizations to avoid upfront capital expenses, reduce ongoing maintenance costs, and pay only for what they use.
Option B: "Users usually own and maintain their own IT infrastructure and facility" is not true for cloud computing. In cloud computing, the infrastructure and facility are owned and maintained by the cloud service provider, and users access these resources remotely over a network.
Option C: "It provides end-to-end server, application network service, and storage virtualization" is partially true, but it does not encompass the full scope of cloud computing. Cloud computing does provide server, application, and storage virtualization, but it also includes other key features, such as elasticity, scalability, and multi-tenancy.
Option D: "It increases total cost of ownership" is not true for cloud computing. Cloud computing can actually reduce the total cost of ownership for organizations by enabling them to avoid upfront capital expenses, reduce ongoing maintenance costs, and pay only for what they use.
In summary, cloud computing is a model for providing on-demand access to shared computing resources, with self-service, on-demand provisioning, and billing for corporate usage only. It can help organizations reduce costs, increase agility, and improve scalability, among other benefits.