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Unix/Linux Operating Systems > Chapter 5 > Flashcards

Chapter 5 Flashcards

1
Q

The directory off the root where device files are typically stored.

A

/dev directory

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2
Q

A file used to specify which filesystems to mount automatically at boot time and queried by the mount command if an insufficient number of arguments are specified.

A

/etc/fstab

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3
Q

A file that stores a list of currently mounted filesystems.

A

/etc/mtab

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4
Q

A file that contains currently used device information.

A

/proc/devices

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5
Q

The areas of a storage medium unable to store data properly.

A

bad blocks

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6
Q

Used to list UUIDs for filesystems and GPT partitions.

A

blkid command

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7
Q

The unit of data commonly used by filesystem commands; a block can contain several sectors.

A

block

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8
Q

Storage devices that transfer data to and from the system in chunks of many data bits by caching the information in RAM; they are represented by block device files.

A

block devices

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9
Q

Used to partition hard disks; displays a graphical interface in which the user can select partitioning options.

A

cfdisk command

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10
Q

The storage devices that transfer data to and from the system one data bit at a time; they are represented by character device files.

A

character devices

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11
Q

A series of tracks on a hard disk that are written to simultaneously by the magnetic heads in a hard disk drive.

A

cylinder

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12
Q

A file used by Linux commands that represents a specific device on the system; these files do not have a data section and use major and minor numbers to reference the proper driver and specific device on the system, respectively.

A

device file

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13
Q

Used to display disk free space by filesystem.

A

df (disk free space) command

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14
Q

The limits on the number of files, or total storage space on a filesystem, available to a user.

A

disk quotas

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15
Q

Used to display directory usage.

A

du (directory usage) command

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16
Q

Used to set a description label on an ext2/ext3/ext4 filesystem.

A

e2label command

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17
Q

Used to specify quota limits for users and groups.

A

edquota command

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18
Q

Used to unmount and eject CD/DVD removable media.

A

eject command

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19
Q

Used to set a description label on an exFAT filesystem.

A

exfatlabel command

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20
Q

Used to set a description label on a FAT filesystem.

A

fatlabel command

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21
Q

Used to create and modify MBR and GPT partitions.

A

fdisk command

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22
Q

The errors in a filesystem structure that prevent the retrieval of stored data.

A

filesystem corruption

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23
Q

The process in which a filesystem is placed on a disk device.

A

formatting

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24
Q

Used to check the integrity of a filesystem and repair damaged files.

A

fsck (filesystem check) command

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25
Q

Used to identify any users or processes using a particular file or directory.

A

fuser command

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26
Q

Used to create and modify GPT partitions. It uses an interface that is very similar to fdisk.

A

gdisk (GPT fdisk) command

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27
Q

A disk quota that the user cannot exceed.

A

hard limit

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28
Q

Used to display storage device information including type, size, major number, minor number, and mount point.

A

lsblk command

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29
Q

Used to display USB devices that are attached to the system, such as a USB flash memory drive.

A

lsusb command

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30
Q

Used to create LVM logical volumes.

A

lvcreate command

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31
Q

Used to view LVM logical volumes.

A

lvdisplay command

32
Q

Used to add space from VGs to existing LVM logical volumes.

A

lvextend command

33
Q

Used to view LVM logical volumes.

A

lvscan command

34
Q

Used to format (create) filesystems.

A

mkfs (make filesystem) command

35
Q

Used to create an ISO image from one or more files on the filesystem.

A

mkisofs command

36
Q

Used to re-create a device file, provided the major number, minor number, and type (character or block) are known.

A

mknod command

37
Q

Used to prepare newly created swap partitions for use by the Linux system.

A

mkswap command

38
Q

Used to mount filesystems on devices to mount point directories.

A

mount command

39
Q

The directory in a file structure to which something is mounted.

A

mount point

40
Q

A process used to associate a device with a directory in the logical directory tree such that users can store data on that device.

A

mounting

41
Q

Used to create and modify MBR and GPT partitions.

A

parted (GNU Parted) command

42
Q

Used to request that partition tables be reloaded by the Linux kernel.

A

partprobe command

43
Q

The block size used by the LVM when storing data on a volume group.

A

physical extent (PE) size

44
Q

A partition that is used by the LVM.

A

Physical Volumes (PVs)

45
Q

Used to create LVM physical volumes.

A

pvcreate command

46
Q

Used to view LVM physical volumes.

A

pvdisplay command

47
Q

Used to view LVM physical volumes.

A

pvscan command

48
Q

Used to view disk quotas imposed on a user.

A

quota command

49
Q

Used to deactivate disk quotas.

A

quotaoff command

50
Q

Used to activate disk quotas.

A

quotaon command

51
Q

The limits that can be imposed on users and groups for filesystem usage.

A

quotas

52
Q

Used to produce a report on quotas for a particular filesystem.

A

repquota command

53
Q

Used to change the size of an ext2/ext3/ext4 filesystem after creation; it is normally used after an LV has been extended to include additional space.

A

resize2fs command

54
Q

The filesystem containing most files that make up the operating system; it should have enough free space to prevent errors and slow performance.

A

root filesystem

55
Q

The smallest unit of data storage on a hard disk; sectors are arranged into concentric circles called tracks and can be grouped into blocks for use by the system.

A

sector

56
Q

A disk quota that the user can exceed for a certain period of time.

A

soft limit

57
Q

Used to disable a partition for use as virtual memory on the Linux system.

A

swapoff command

58
Q

Used to enable a partition for use as virtual memory on the Linux system.

A

swapon command

59
Q

The process of writing data stored in RAM to a filesystem.

A

syncing

60
Q

The area on a hard disk that forms a concentric circle of sectors.

A

track

61
Q

Used to modify ext2/ext3/ext4 filesystem parameters.

A

tune2fs command

62
Q

A system process used to manage device files for block and character devices.

A

udev daemon

63
Q

Used to break the association between a device and a directory in the logical directory tree.

A

umount command

64
Q

A unique identifier given to a filesystem or GPT partition when it is created; it can be used to identify that filesystem or GPT partition afterwards.

A

Universally Unique Identifier (UUID)

65
Q

Used to create an LVM VG.

A

vgcreate command

66
Q

Used to view an LVM VG.

A

vgdisplay command

67
Q

Used to add physical volumes to an LVM VG.

A

vgextend command

68
Q

Used to view LVM VGs.

A

vgscan command

69
Q

A special filesystem that is used by the Linux kernel for operating system use only; /sys, /dev, /run, and /proc are examples of virtual filesystems.

A

virtual filesystem

70
Q

A group of PVs that are used by the LVM.

A

Volume Group (VG)

71
Q

Used to view and configure parameters for an XFS filesystem, including the description label.

A

xfs_admin command

72
Q

Used to view XFS filesystem information and parameters.

A

xfs_db command

73
Q

Used to reorganize and optimize an XFS filesystem.

A

xfs_fsr command

74
Q

Used to change the size of an XFS filesystem after creation; it is normally used after an LV has been extended to include additional space.

A

xfs_growfs command

75
Q

Used to obtain usage information for an XFS filesystem; it can also be used to change the size of an XFS filesystem after creation.

A

xfs_info command

76
Q

Used to configure and manage disk quotas for an XFS filesystem.

A

xfs_quota command

77
Q
A

Unix/Linux Operating Systems (5 decks)

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