RHCE Storage and File Systems 2

Question 1

Which command creates a volume group named `vg_data` from physical volume `/dev/sdb`?

Accepted Answer

vgcreate vg_data /dev/sdb

Answer

pvcreate vg_data /dev/sdb

Answer

lvcreate vg_data /dev/sdb

Answer

mkfs.xfs vg_data /dev/sdb

Question 2

What mount option in `/etc/fstab` causes a file system to be mounted read-only?

Accepted Answer

ro

Answer

noexec

Answer

nosuid

Answer

defaults

Question 3

Which command scans for available LVM physical volumes on the system?

Accepted Answer

pvscan

Answer

pvdisplay

Answer

pvcheck

Answer

pvlist

Question 4

What does the `blkid` command display?

Accepted Answer

UUID and type of block devices

Answer

Block device I/O statistics

Answer

LVM logical volume details

Answer

Disk partition sizes

Question 5

Which option in `mkfs.xfs` sets a label for a new XFS file system?

Accepted Answer

-L

Answer

-n

Answer

-l

Answer

-b

Question 6

What command creates a swap partition and enables it immediately?

Accepted Answer

mkswap /dev/sdc1 && swapon /dev/sdc1

Answer

mkfs.swap /dev/sdc1 && swapon /dev/sdc1

Answer

fdisk /dev/sdc1 && swapon /dev/sdc1

Answer

mkswap /dev/sdc1 && swapstart /dev/sdc1