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    Question

    Which of the following statements best explains the role

    of a hypervisor in virtualization?
    A A hypervisor provides direct access to the hardware for each virtual machine, bypassing the host operating system. Correct Answer Incorrect Answer
    B It manages virtual machines on a host system, enabling multiple operating systems to run simultaneously on the same hardware. Correct Answer Incorrect Answer
    C A hypervisor ensures that virtual machines share the same kernel as the host operating system. Correct Answer Incorrect Answer
    D It converts physical hardware into virtualized resources without requiring any guest operating system. Correct Answer Incorrect Answer
    E Hypervisors are only used in cloud computing environments for container management. Correct Answer Incorrect Answer

    Solution

    A hypervisor, also known as a virtual machine monitor (VMM), is critical to virtualization. It allows multiple virtual machines (VMs) to operate on a single physical hardware system. The hypervisor acts as an intermediary between the hardware and the VMs, allocating resources like CPU, memory, and storage efficiently. There are two main types of hypervisors: 1. Type 1 (Bare-metal): Runs directly on hardware, offering better performance and resource efficiency (e.g., VMware ESXi, Microsoft Hyper-V). 2. Type 2 (Hosted): Runs on a host operating system, suitable for personal or small-scale virtualization (e.g., VirtualBox, VMware Workstation). Example: In cloud environments like AWS or Azure, hypervisors enable multiple tenants to use the same hardware securely and efficiently. ________________________________________ Why Other Options Are Incorrect: 1. Provides direct access to the hardware for each VM, bypassing the host OS: This describes Type 1 hypervisors partially but fails to account for hosted hypervisors that depend on an existing OS. 2. VMs share the same kernel as the host OS: This is true for container-based virtualization (e.g., Docker), not hypervisors that allow completely different operating systems to coexist. 3. Converts physical hardware into virtualized resources without guest OS: A hypervisor requires guest operating systems to manage VMs effectively. Hardware virtualization alone cannot replace the guest OS layer. 4. Only used in cloud computing for container management: Hypervisors are used broadly in various virtualization contexts, not limited to cloud computing or container environments.

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