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LPI 101-500

Beschreibung

Linux Profesional Institute
David OkOk
Quiz von David OkOk, aktualisiert vor 12 Monate
David OkOk
Erstellt von David OkOk vor etwa 2 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
Which type of file system is created by mkfs when it is executed with the block device name only and without any additional parameters?
Antworten
  • XFS
  • VFAT
  • ext2
  • ext3
  • ext4

Frage 2

Frage
Which umask value ensures that new directories can be read, written and listed by their owning user, read and listed by their owning group and are not accessible at all for everyone else?
Antworten
  • 0750
  • 0027
  • 0036
  • 7640
  • 0029

Frage 3

Frage
Which of the following commands changes the number of days before the ext3 filesystem on /dev/sda1 has to run through a full filesystem check while booting?
Antworten
  • tune2fs -d 200 /dev/sda1
  • tune2fs -i 200 /dev/sda1
  • tune2fs -c 200 /dev/sda1
  • tune2fs -n 200 /dev/sda1
  • tune2fs --days 200 /dev/sda1

Frage 4

Frage
Which is the default percentage of reserved space for the root user on new ext4 filesystems?
Antworten
  • 10%
  • 3%
  • 15%
  • 0%
  • 5%

Frage 5

Frage
5.- Which of the following is true when a file system, which is neither listed in /etc/fstab nor known to system, is mounted manually?
Antworten
  • Systemd ignores any manual mounts which are not done using the systemctl mount command
  • The command systemctl mountsync can be used to create a mount unit based on the existing mount
  • systemd automatically generates a mount unit and monitors the mount point without changing it
  • Unless a systemd mount unit is created, systemd unmounts the file system after a short period of time
  • systemctl unmount must be used to remove the mount because system opens a file descriptor on the mount point

Frage 6

Frage
6.- Which program updates the database that is used by the locate command? (Specify ONLY the command without any path or parameters).
Antworten
  • updatedb
  • upgrade

Frage 7

Frage
7.- What does the command mount --bind do?
Antworten
  • It makes the contents of one directory available in another directory
  • It mounts all available filesystems to the current directory
  • It mounts all user mountable filesystems to the user's home directory
  • It mounts all file systems listed in /etc/fstab which have the option userbind set
  • It permanently mounts a regular file to a directory

Frage 8

Frage
8.- Consider the following output from the command ls -i: How would a new file named c.txt be created with the same inode number as a.txt (Inode 525385)?
Antworten
  • ln -h a.txt c.txt
  • ln c.txt a.txt
  • ln a.txt c.txt
  • In -f c.txt a.txt
  • ln -i 525385 c.txt

Frage 9

Frage
Consider the following directory: drwxrwxr-x 2 root sales 4096 Jan 1 15:21 sales Which command ensures new files created within the directory sales are owned by the group sales? (Choose two.)
Antworten
  • chmod g+s sales
  • setpol -R newgroup=sales sales
  • chgrp -p sales sales
  • chown --persistent *.sales sales
  • chmod 2775 sales

Frage 10

Frage
10.- In order to display all currently mounted filesystems, which of the following commands could be used? (Choose two.)
Antworten
  • cat /proc/self/mounts
  • free
  • lsmounts
  • mount
  • cat /proc/filesystems

Frage 11

Frage
11.- Which command displays the current disk space usage for all mounted file systems? (Specify ONLY the command without any path or parameters.)
Antworten
  • df
  • ht

Frage 12

Frage
12.- Which chown command changes the ownership to dave and the group to staff on a file named data.txt?
Antworten
  • chown dave/staff data.txt
  • chown -u dave -g staff data.txt
  • chown --user dave --group staff data.txt
  • chown dave+staff data.txt
  • chown dave:staff data.txt

Frage 13

Frage
13.- When considering the use of hard links, what are valid reasons not to use hard links?
Antworten
  • Hard links are not available on all Linux systems because traditional filesystems, such as ext4, do not support them
  • Each hard link has individual ownership, permissions and ACLs which can lead to unintended disclosure of file content
  • Hard links are specific to one filesystem and cannot point to files on another filesystem
  • If users other than root should be able to create hard links, suln has to be installed and configured
  • When a hard linked file is changed, a copy of the file is created and consumes additional space

Frage 14

Frage
14.- In compliance with the FHS, in which of the directories are man pages found?
Antworten
  • /opt/man/
  • /usr/doc/
  • /usr/share/man/
  • /var/pkg/man
  • /var/man/

Frage 15

Frage
15.- Which file in the /proc filesystem lists parameters passed from the bootloader to the kernel? (Specify the file name only without any path.)
Antworten
  • cmdline
  • repeat

Frage 16

Frage
16.- What is the process ID number of the init process on a System V init based system?
Antworten
  • -1
  • 0
  • 1
  • It is different with each reboot
  • It is set to the current run level

Frage 17

Frage
17.- Which daemon handles power management events on a Linux system?
Antworten
  • acpid
  • batteryd
  • pwrmgntd
  • psd
  • inetd

Frage 18

Frage
18.- Which of the following statements are true about the boot sequence of a PC using a BIOS? (Choose two.
Antworten
  • Some parts of the boot process can be configured from the BIOS
  • Linux does not require the assistance of the BIOS to boot a computer
  • The BIOS boot process starts only if secondary storage, such as the hard disk, is functional
  • The BIOS initiates the boot process after turning the computer on
  • The BIOS is started by loading hardware drivers from secondary storage, such as the hard disk

Frage 19

Frage
19.- What is true regarding UEFI firmware? (Choose two.)
Antworten
  • It can read and interpret partition tables
  • It can use and read certain file systems
  • It stores its entire configuration on the /boot/ partition
  • It is stored in a special area within the GPT metadata
  • It is loaded from a fixed boot disk position

Frage 20

Frage
20.- A faulty kernel module is causing issues with a network interface card. Which of the following actions ensures that this module is not loaded automatically when the system boots?
Antworten
  • Using lsmod --remove --autoclean without specifying the name of a specific module
  • Using modinfo -k followed by the name of the offending module
  • Using modprobe -r followed by the name of the offending module
  • Adding a blacklist line including the name of the offending module to the file /etc/modprobe.d/blacklist.conf
  • Deleting the kernel module's directory from the file system and recompiling the kernel, including its modules

Frage 21

Frage
21.- When is the content of the kernel ring buffer reset? (Choose two.)
Antworten
  • When the ring buffer is explicitly reset using the command dmesg --clear
  • When the ring buffer is read using dmesg without any additional parameters
  • When a configurable amount of time, 15 minutes by default, has passed
  • When the kernel loads a previously unloaded kernel module
  • When the system is shut down or rebooted

Frage 22

Frage
What is the first program the Linux kernel starts at boot time when using System V init?
Antworten
  • /lib/init.so
  • /proc/sys/kernel/init
  • /etc/rc.d/rcinit
  • /sbin/init
  • /boot/init

Frage 23

Frage
23.- A Debian package creates several files during its installation. Which of the following commands searches for packages owning the file /etc/debian_version?
Antworten
  • apt-get search /etc/debian_version
  • apt -r /etc/debian_version
  • find /etc/debian_version -dpkg
  • dpkg -S /etc/debian_version
  • apt-file /etc/debian_version

Frage 24

Frage
24.- What is contained on the EFI System Partition?
Antworten
  • The Linux root file system
  • The first stage boot loader
  • The default swap space file
  • The Linux default shell binaries
  • The user home directories

Frage 25

Frage
25.- Which of the following directories on a 64 bit Linux system typically contain shared libraries? (Choose two.)
Antworten
  • ~/.lib64/
  • /usr/lib64/
  • /var/lib64/
  • /lib64/
  • /opt/lib64/

Frage 26

Frage
26.- Which of the following files exist in a standard GRUB 2 installation? (Choose two.)
Antworten
  • /boot/grub/stages/stage0
  • /boot/grub/i386-pc/lvm.mod
  • /boot/grub/fstab
  • /boot/grub/grub.cfg
  • /boot/grub/linux/vmlinuz

Frage 27

Frage
27.- Which of the following commands installs all packages with a name ending with the string foo?
Antworten
  • zypper get '*foo'
  • zypper update 'foo?'
  • zypper force 'foo*'
  • zypper install '*foo'
  • zypper add '.*foo'

Frage 28

Frage
Which of the following properties of a Linux system should be changed when a virtual machine is cloned? (Choose two.)
Antworten
  • The partitioning scheme
  • The file system
  • The D-Bus Machine ID
  • The permissions of /root/
  • The SSH host keys

Frage 29

Frage
29.- Which of the following commands installs GRUB 2 into the master boot record on the third hard disk?
Antworten
  • grub2 install /dev/sdc
  • grub-mkrescue /dev/sdc
  • grub-mbrinstall /dev/sdc
  • grub-setup /dev/sdc
  • grub-install /dev/sdc

Frage 30

Frage
30.- Which of the following partition types is used for Linux swap spaces when partitioning hard disk drives?
Antworten
  • 7
  • 82
  • 83
  • 8e
  • fd

Frage 31

Frage
31 Which command shows kernel ring buffer messages produced during boot and runtime?
Antworten
  • journalctl -b
  • dmesg
  • syslog
  • bootctl

Frage 32

Frage
32.- Which directory exposes kernel and system information as a pseudo-filesystem?
Antworten
  • /proc
  • /boot
  • /var
  • /opt

Frage 33

Frage
33.- Which command lists currently loaded kernel modules?
Antworten
  • depmod
  • modinfo
  • insmod
  • lsmod

Frage 34

Frage
34.- To load a kernel module at runtime, which command is used?
Antworten
  • modprobe <module>
  • insmod -r <module>
  • rmmod <module>
  • depmod <module>

Frage 35

Frage
35.- Where are modprobe configuration files typically stored for blacklisting modules?
Antworten
  • /etc/modprobe.d/
  • /etc/modules-load.d/
  • /usr/lib/modprobe.d/
  • /boot/modprobe/

Frage 36

Frage
36.- Which file shows the kernel version currently running?
Antworten
  • /etc/os-release
  • /proc/version
  • /boot/grub/grub.cfg
  • /var/log/messages

Frage 37

Frage
37.- Which command updates module dependency and map files?
Antworten
  • depmod
  • modprobe -r
  • modinfo
  • lsmod

Frage 38

Frage
38.- Which tool displays PCI devices and vendor/product IDs?
Antworten
  • lsusb
  • lspci
  • lsblk
  • hwinfo

Frage 39

Frage
39.- Which pseudo-file contains the list of CPU info?
Antworten
  • /proc/uptime
  • /proc/cpuinfo
  • /proc/meminfo
  • /proc/stat

Frage 40

Frage
40.- Where is the kernel image usually stored on a Linux system?
Antworten
  • /bin/vmlinuz
  • /boot/
  • /lib/modules/
  • /usr/src/

Frage 41

Frage
41.- What does UEFI system firmware store boot entries in?
Antworten
  • MBR boot record
  • NVRAM
  • /etc/fstab
  • /boot/grub/grub.cfg

Frage 42

Frage
42.- Which utility shows and manipulates UEFI boot entries?
Antworten
  • grub-install
  • efibootmgr
  • bootctl
  • systemctl

Frage 43

Frage
43.- In MBR partitioning, where is the boot code located?
Antworten
  • GPT header
  • First sector (MBR)
  • /boot/efi
  • /etc/grub.d/

Frage 44

Frage
44.- What is the purpose of an initramfs/initrd?
Antworten
  • Replace the kernel
  • Provide initial userspace before root FS mounts
  • Store GRUB configuration
  • Manage user accounts during boot

Frage 45

Frage
45.- Which command regenerates an initramfs on Debian/Ubuntu?
Antworten
  • mkinitrd
  • update-initramfs -u
  • dracut --force
  • mkinitcpio -p linux

Frage 46

Frage
46.-On systems using dracut, which command rebuilds the initramfs?
Antworten
  • update-initramfs
  • dracut --force
  • mkinitramfs
  • genkernel

Frage 47

Frage
47.- Which GRUB2 file is automatically generated and should not be edited directly?
Antworten
  • /etc/default/grub
  • /boot/grub/grub.cfg
  • /etc/grub.d/40_custom
  • /usr/lib/grub/menu.lst

Frage 48

Frage
48.- Which file configures default GRUB kernel parameters?
Antworten
  • /boot/grub/grub.cfg
  • /etc/default/grub
  • /etc/grub.d/
  • /etc/grub.conf

Frage 49

Frage
49.- Which command regenerates GRUB configuration (on Debian/Ubuntu)?
Antworten
  • grub-install
  • grub-mkconfig -o /boot/grub/grub.cfg
  • update-grub
  • Both B and C

Frage 50

Frage
50.- What does grub-install do?
Antworten
  • Create /boot/grub/grub.cfg
  • Install GRUB bootloader to disk/EFI
  • Generate initramfs
  • Update kernel parameters

Frage 51

Frage
51.- Which kernel parameter passes options to init (PID 1) or init system?
Antworten
  • root=
  • ro
  • init=
  • quiet

Frage 52

Frage
52.- To boot into single-user mode with systemd you can append which kernel parameter?
Antworten
  • single
  • systemd.unit=rescue.target
  • init=/bin/bash
  • runlevel=1

Frage 53

Frage
53.- Which target is analogous to SysV runlevel 3 (multi-user, non-graphical) in systemd?
Antworten
  • graphical.target
  • multi-user.target
  • rescue.target
  • default.target

Frage 54

Frage
54.- How do you check the default systemd target?
Antworten
  • systemctl get-default
  • systemctl default
  • systemctl status default.target
  • systemctl list-unit-files

Frage 55

Frage
55.- Which command sets the default systemd target to graphical?
Antworten
  • systemctl isolate graphical.target
  • systemctl set-default graphical.target
  • systemctl enable graphical.service
  • systemctl start graphical.target

Frage 56

Frage
56.- What does systemctl isolate rescue.target do?
Antworten
  • Permanently sets rescue.target as default
  • Immediately switches to rescue.target (stops other units)
  • Reboots into rescue mode on next boot
  • Enables rescue.service at boot

Frage 57

Frage
57.- Which SysV file historically defined runlevels?
Antworten
  • /etc/systemd/system/default.target
  • /etc/inittab
  • /etc/rc.local
  • /proc/runlevel

Frage 58

Frage
58.- In legacy SysV, which runlevel is used for system halt/poweroff?
Antworten
  • 1
  • 3
  • 0
  • 6

Frage 59

Frage
59.- Which command in SysV init changes the current runlevel?
Antworten
  • systemctl isolate
  • telinit
  • runlevel
  • initctl

Frage 60

Frage
60.- What file lists kernel command line at runtime?
Antworten
  • /proc/cmdline
  • /etc/default/grub
  • /boot/grub/grub.cfg
  • /etc/grub.d/
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LPI 101-500
David OkOk
LPI 101-500
David OkOk
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