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Storage and File Systems Flashcards

6 cards from real RHCE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Storage and File Systems flashcards as text

  1. What is the default physical extent size when creating an LVM volume group?

    Answer: 4 MB

    The default physical extent size for LVM volume groups is 4 MB unless specified otherwise with `-s`.

  2. Which command mounts all file systems listed in `/etc/fstab` that are not currently mounted?

    Answer: mount -a

    `mount -a` reads `/etc/fstab` and mounts all file systems that have not already been mounted.

  3. What does the `vgdisplay` command show?

    Answer: Volume group attributes and free space

    `vgdisplay` shows detailed information about LVM volume groups including size, free PE, and VG UUID.

  4. Which `/etc/fstab` field specifies the order in which file systems are checked at boot?

    Answer: 6th field (fsck order)

    The sixth field in `/etc/fstab` specifies the order in which `fsck` checks file systems at boot (0 = skip, 1 = root, 2 = others).

  5. What command removes a logical volume named `lv_data` in volume group `vg0`?

    Answer: lvremove /dev/vg0/lv_data

    `lvremove` removes an LVM logical volume from a volume group permanently.

  6. Which command verifies and repairs an unmounted ext4 file system on `/dev/sdb1`?

    Answer: e2fsck -p /dev/sdb1

    `e2fsck -p` automatically repairs an ext2/3/4 file system without prompting for every fix.

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