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220-1102 Practice Question: Deploy a virtual machine for a client who…

A technician needs to deploy a virtual machine for a client who requires a specific operating system that is not supported by the hypervisor's default settings. The technician has the ISO file for the OS. What should the technician do to install the OS on the VM?

⚠ Common exam trap

The exam may test the misconception that an unsupported OS cannot be installed at all, leading candidates to choose 'change hypervisor settings,' when in fact any OS can be installed via standard boot media like an ISO mounted as a virtual CD/DVD.

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Mount the ISO file as a virtual CD/DVD drive and boot from it.

Mounting the ISO file as a virtual CD/DVD drive is the correct method because hypervisors emulate optical drives for VM boot devices. By attaching the ISO to the virtual drive and setting the boot order to CD/DVD first, the VM can boot from the ISO and begin the OS installation process. This approach works regardless of whether the OS is in the hypervisor's default supported list, as the installation media is presented directly to the guest.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    Copy the ISO file directly to the virtual hard disk.

    Why it's wrong here

    Copying an ISO onto the virtual hard disk does not make it bootable installation media; the ISO must be mounted as a virtual optical drive so the VM boots from it. It is tempting because the file is transferred to the VM, but the firmware cannot boot an ISO stored as a plain disk file.

  • ✓

    Mount the ISO file as a virtual CD/DVD drive and boot from it.

    Why this is correct

    Booting from a mounted ISO presents the installer as virtual optical media, bypassing the hypervisor's unsupported default guest templates. This satisfies the constraint that the required OS lacks native hypervisor support, since installation proceeds from the supplied image rather than a predefined profile.

  • ✗

    Use a USB flash drive with the ISO and plug it into the host.

    Why it's wrong here

    Plugging a USB flash drive into the host does not automatically make its contents available for OS installation within a virtual machine. Hypervisors typically provide virtual optical drives or direct ISO mounting capabilities, allowing the VM to boot from the ISO file without needing physical media passthrough. This option is tempting because creating a bootable USB from an ISO is the standard method for installing an operating system onto a *physical* computer, where the machine boots directly from the USB drive.

  • ✗

    Change the hypervisor's default settings to support the OS.

    Why it's wrong here

    Altering hypervisor defaults does not add support for an unsupported guest OS; the technician must instead attach the ISO to the VM's virtual optical drive and boot from it. It is tempting because settings menus appear relevant, but they govern host behaviour, not guest OS installation media.

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This 220-1202 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 220-1202 exam.