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    Question

    What is a key advantage of containerization over

    traditional virtual machines?
    A Containers offer hardware-level isolation, while VMs offer OS-level isolation Correct Answer Incorrect Answer
    B Containers are faster to start and consume fewer resources compared to VMs. Correct Answer Incorrect Answer
    C Containers can host multiple kernels simultaneously, while VMs cannot. Correct Answer Incorrect Answer
    D Containers require dedicated hardware, unlike VMs. Correct Answer Incorrect Answer
    E Containers do not require a base image, while VMs do. Correct Answer Incorrect Answer

    Solution

    Containers are lightweight because they share the host OS kernel rather than requiring a full OS instance like VMs. This makes them faster to start, as only the application and its dependencies need to be initialized. Additionally, resource utilization is optimized as multiple containers can share system libraries, reducing overhead. Tools like Docker have revolutionized containerization by enabling consistent environments across development, testing, and production. For example, starting a container typically takes seconds compared to minutes for a VM, making it ideal for agile and CI/CD workflows. Why Other Options Are Incorrect :

    1. Isolation levels : VMs provide hardware-level isolation, while containers provide process-level isolation.
    2. Multiple kernels : Containers share a single kernel, unlike VMs which can run different OS kernels.
    3. Dedicated hardware : Neither containers nor VMs require dedicated hardware.
    4. Base images : Containers rely on base images for their runtime environment; this is incorrect.

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