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    Question

    Which of the following is the primary characteristic of

    Infrastructure as a Service (IaaS) in cloud computing?
    A Provides a platform to develop and deploy applications without managing underlying hardware. Correct Answer Incorrect Answer
    B Offers access to shared databases and frameworks for data processing Correct Answer Incorrect Answer
    C Enables customers to rent virtualized hardware resources like servers and storage Correct Answer Incorrect Answer
    D Focuses exclusively on security and identity management in the cloud. Correct Answer Incorrect Answer
    E Provides complete business solutions such as ERP and CRM as a service. Correct Answer Incorrect Answer

    Solution

    Infrastructure as a Service (IaaS) is one of the foundational service models in cloud computing. It provides customers access to virtualized hardware resources such as servers, storage, and networking over the internet. Unlike other models like PaaS (Platform as a Service) or SaaS (Software as a Service), IaaS does not abstract infrastructure management entirely. Users are responsible for installing and managing their operating systems, applications, and configurations while the cloud provider manages the physical hardware. For example, Amazon Web Services (AWS) EC2 and Google Cloud Compute Engine allow users to spin up virtual machines (VMs) and allocate storage. This flexibility is ideal for businesses needing scalability, as resources can be quickly adjusted based on demand. IaaS also enables cost efficiency because companies pay only for the resources they consume instead of investing in physical hardware. Why Other Options Are Incorrect: ·         Option A: This describes Platform as a Service (PaaS), where developers can focus on application development without worrying about managing the infrastructure or runtime environments. ·         Option B: While shared databases and data processing frameworks may utilize IaaS for their underlying infrastructure, the description aligns more with specialized Big Data solutions or managed database services, not the core offering of IaaS. ·         Option D: Security and identity management are components of cloud services but are not specific to IaaS. These are generally provided as additional features across all service models. ·         Option E: Complete business solutions like ERP (Enterprise Resource Planning) and CRM (Customer Relationship Management) fall under Software as a Service (SaaS), not IaaS.

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