220-1102 Operating Systems Practice Question

Answer analysis

Option-by-option breakdown

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

• ✓

  Shrink the Windows partition using Disk Management to create unallocated space for Linux

  Why this is correct

  Shrinking the Windows partition in Disk Management reduces the NTFS volume's size without deleting data, leaving unallocated space on the disk. The Linux installer (e.g., Ubuntu's Ubiquity) can then place its own partitions—such as root (/), swap, and optionally /home—into that unallocated area without resizing the Windows filesystem. This step is the foundational prerequisite because the installer cannot safely create partitions within the currently fully allocated Windows volume. Without unallocated space, the dual-boot installation would fail with an error about insufficient space for the new OS.

• ✗

  Disable Secure Boot in the UEFI firmware settings

  Why it's wrong here

  Disabling Secure Boot is often cited as a necessity for installing Linux, but this is only true for older or unsigned distributions. Modern mainstream distributions like Ubuntu and Fedora ship bootloaders signed with Microsoft keys and can boot with Secure Boot enabled. Furthermore, toggling Secure Boot does nothing to address the disk layout; it only changes firmware validation of boot code. The actual blocker is the absence of unallocated space for the Linux filesystem, making this action neither mandatory nor sufficient for dual-boot.

• ✗

  Format a partition as ext4 using Windows Disk Management

  Why it's wrong here

  Windows Disk Management has no built-in support for the ext4 filesystem; it can format volumes as NTFS, exFAT, or FAT32, but not ext4. Even if you somehow created an ext4 partition, the Linux installer would overwrite it with its own partitions during setup, so pre-formatting is redundant. More importantly, formatting a partition would require first having a partition, but the problem is creating unallocated space—which formatting does not accomplish. The intended workflow is to leave space unallocated and let the Linux installer format the partitions it creates using its native tools like mkfs.ext4.

• ✗

  Enable BitLocker encryption on the Windows partition

  Why it's wrong here

  BitLocker encrypts the Windows volume using full-disk encryption, which is unrelated to the need for disk space and actually works against a smooth dual-boot setup. When BitLocker is enabled, the Linux installer cannot easily read or write the Windows partition, and common Linux drivers do not support BitLocker's encryption scheme. You would need to suspend BitLocker protection or ensure the key is available, adding unnecessary complexity to the installation. BitLocker provides no benefit for dual-booting and takes up no meaningful extra space, so it is both irrelevant and counterproductive here.

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