MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -The NIST Cloud Computing Definition provides three possible cloud services categories (called service models): Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS).

Detailed explanation-2: -The National Institute of Standards Technology (NIST) lists five essential characteristics of cloud computing: on-demand self-service, broad network access, resource pooling, rapid elasticity, and measured service.

Detailed explanation-3: -As shown in Figure 1, the NIST cloud computing reference architecture defines five major actors: cloud consumer, cloud provider, cloud carrier, cloud auditor and cloud broker. Each actor is an entity (a person or an organization) that participates in a transaction or process and/or performs tasks in cloud computing.

Detailed explanation-4: -Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction.