EX200 Deploy, configure, and maintain 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.

• ✓

  Create a logical volume with lvcreate

  Why this is correct

  The lvcreate command carves a new logical volume out of the free extents in an existing volume group, such as vg00. It requires specifying the LV name, size (-L or -l), and the target VG; without this step, there is no block device available for formatting or mounting. Because the VG already holds the physical storage, lvcreate is the first and essential action in the workflow.

• ✓

  Format the logical volume with a filesystem (e.g., mkfs)

  Why this is correct

  Once the logical volume is created, it appears as a raw block device (e.g., /dev/vg00/lvname) without any filesystem structure. Running mkfs (for instance, mkfs.xfs or mkfs.ext4) writes the filesystem metadata and creates the inode/block structure required for storing files. This formatting step is mandatory because the kernel cannot mount a raw device that lacks a valid superblock.

• ✓

  Mount the filesystem

  Why this is correct

  Mounting the formatted logical volume attaches it into the Linux directory tree at a specified mount point, making the filesystem accessible to users and applications. This operation uses the mount command with the device path and target directory, and the kernel validates the filesystem before allowing access. For a permanent setup, the mount must also be added to /etc/fstab so it survives a system reboot.

• ✗

  Create a physical volume

  Why it's wrong here

  A physical volume is the low-level storage unit that has been initialized with pvcreate and serves as a building block for a volume group. In this scenario, the volume group vg00 already exists, meaning its constituent physical volumes are already in place and do not need to be created or reinitialized. Creating a new physical volume would be appropriate only when adding new storage devices to expand an existing VG, not when creating a logical volume.

• ✗

  Create a volume group

  Why it's wrong here

  The volume group vg00 is explicitly stated to already exist in the question, so creating a new volume group is unnecessary and would be destructive. A VG pools physical volumes into a single storage reservoir from which logical volumes are allocated; recreating it would tear down the existing pool and potentially destroy any logical volumes it contains. The lvcreate command operates on an existing VG and never creates one, so the VG creation step should be absent from the required procedure.

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