Скачать или смотреть Redhat Linux 9: Tóm tắt chương 14: Managing Storage

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Red Hat Enterprise Linux Administration
   • Red Hat Enterprise Linux 9 Administration  
2023 09 05 21 57 35


Which of the following is not an advantage of using a GUID
partition table over using an MBR partition table?
1. Access time to a directory is quicker.
2. A total amount of 8 ZiB can be addressed by a partition.
3. With GUID partitions, a backup copy of the partition table is
created automatically.
4. There can be up to 128 partitions in total.
. Which of the following statements about GPT partitions is not
true?
1. You can easily convert an existing MBR disk to GPT by using
gdisk.
2. You can use fdisk to write a GPT disk label.
3. Partition types in GPT are four characters instead of two
characters.
4. GPT partitions can be created on MBR as well as EFI systems.
. Which partition type is commonly used to create a swap
partition?
1. 81
2. 82
3. 83
4. 8e
. What is the default disk device name you would expect to see in
KVM virtual machines?
1. /dev/sda
2. /dev/hda
3. /dev/vda
4. /dev/xsda
. Which of the following statements is not true?
1. You should not ever use gdisk on an MBR disk.
2. fdisk offers support to manage GPT partitions as well.
3. Depending on your needs, you can create MBR and GPT
partitions on the same disk.
4. If your server boots from EFI, you must use GPT partitions.
. Which of the following file systems is used as the default in
RHEL 9?
1. Ext4
2. XFS
3. btrfs
4. Ext3
. Which command enables you to find current UUIDs set to the
file systems on your server?
1. mount
2. df -h
3. lsblk
4. blkid
. What would you put in the device column of /etc/fstab to mount
a file system based on its unique ID 42f419c4-633f-4ed7-b161-
519a4dadd3da?
1. 42f419c4-633f-4ed7-b161-519a4dadd3da
2. /dev/42f419c4-633f-4ed7-b161-519a4dadd3da
3. ID=42f419c4-633f-4ed7-b161-519a4dadd3da
4. UUID=42f419c4-633f-4ed7-b161-519a4dadd3da
. Which command can you use to verify the contents of /etc/fstab
before booting?
1. fsck --fstab
2. findmnt --verify
3. mount -a
4. reboot
. While creating a systemd mount unit file, different elements
are required. Which of the following is not one of them?
1. The mount unit filename corresponds to the mount point.
2. An [Install] section is included to set the default runlevel.
3. A what statement is included to indicate what should be
mounted.
4. A where statement is included to indicate where the device
should be mounted.

Chapter 14
. A. Using GUI partition tables offers many advantages, but it
does not make access to a directory faster.
. A. There is no easy way to change MBR partitions to GPT.
. B. Partition type 82 is normally used to create Linux partitions.
. C. KVM virtual machines use the virtio driver to address hard
disks. This driver generates the device /dev/vda as the first disk
device.
. C. A disk can have one partition table only. For that reason, it is
not possible to have MBR and GPT partitions on the same disk.
. B. XFS is used as the default file system; partitions can still be
formatted with other file systems, like Ext4.
. D. The blkid command shows all file systems, their UUID, and if
applicable, their label.
. D. To mount a file system based on its UUID, use UUID=nnnn in
the /etc/fstab device column.
. B. The best option to verify the content of /etc/fstab is to use the
findmnt --verify command. This command will complain about
errors in lines, regardless of the current mounted state of a
device. The mount -a command can also be helpful, but it only
works on devices that are not currently mounted.
. B. Although convenient, having an [Install] section is only
required if you want to enable the mount unit file.