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    Question

    Which of the following is a core feature of Cloud Computing

    that distinguishes it from traditional computing models?
    A Fixed Resource Allocation Correct Answer Incorrect Answer
    B Scalability on Demand Correct Answer Incorrect Answer
    C Use of Physical Servers Correct Answer Incorrect Answer
    D In-House Hardware Maintenance Correct Answer Incorrect Answer
    E Data Storage in Local Databases Correct Answer Incorrect Answer

    Solution

    Cloud Computing refers to the delivery of computing services—such as servers, storage, databases, networking, software, and more—over the internet (the cloud). The key differentiator of cloud computing from traditional computing models is scalability on demand . This means that cloud users can scale their computing resources up or down as needed, without any upfront investment in physical hardware or IT infrastructure. This on-demand model is highly flexible and cost-efficient, as users only pay for the resources they use, allowing businesses to adapt quickly to changes in demand.

    • Why It Is Important: Scalability ensures that users can manage fluctuating workloads without worrying about running out of resources or over-provisioning. This is especially critical in applications with variable usage patterns, such as e-commerce platforms during holiday seasons or applications with unpredictable traffic patterns.
    • Real-World Example: Services like Amazon Web Services (AWS) , Google Cloud Platform (GCP) , and Microsoft Azure provide infrastructure that automatically scales based on user demands, ensuring minimal downtime and optimal performance.
    Why Other Options Are Incorrect:
    • Fixed Resource Allocation: Traditional computing models usually involve fixed resource allocation, where businesses need to predict and purchase hardware based on anticipated needs, which is less flexible than the cloud model.
    • Use of Physical Servers: Cloud computing can operate on virtualized resources hosted in physical data centers, but users are abstracted from the physical servers, focusing on virtual resources.
    •  In-House Hardware Maintenance: Cloud services are typically managed by service providers, not by the businesses themselves, so there's no need for users to maintain in-house hardware.
    •  Data Storage in Local Databases: Cloud storage refers to data being stored in the cloud (remotely in data centers), not in local or on-premise databases.

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