XK0-005 practice questions 251–260

1. Question 251 · 300 in bank

   A Linux administrator is creating a primary partition on the replacement hard drive for an application server. Which of the following commands should the administrator issue to verify the device name of this partition?

   • Asudo fdisk /dev/sda
   • Bsudo fdisk -s /dev/sda
   • Csudo fdisk -l
   • Dsudo fdisk -h

   Show answer

   Answer: C

   Explanation

   The correct command is C. sudo fdisk -l The sudo fdisk -l command is used to list information about all the partitions on the system. The output will include the device name, file system type, size, and other relevant information for each partition. In this case, the administrator is looking for the device name of the primary partition on the replacement hard drive for an application server. By using the sudo fdisk -l command, the administrator will be able to see a list of all the partitions on the system and identify the device name for the new partition.

   Source: Adapted from community discussion — linux_admin

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2. Question 252 · 300 in bank

   A systems administrator is investigating why one of the servers has stopped connecting to the internet.

   

   Which of the following is causing the issue?

   • AThe DNS address has been commented out in the configuration file.
   • BThe search entry in the /etc/resolv.conf file is incorrect.
   • CWired connection 1 is offline.
   • DNo default route is defined.

   Show answer

   Answer: A

   Explanation

   Whenever you want to comment a line, put a # in an appropriate place in a file. Anything beginning after # and ending at the end of the line won't get executed. This comments out the complete line. This comments out only the last part of the line starting at #

   Source: Adapted from community discussion — Ckl22

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3. Question 253 · 300 in bank

   A systems administrator is tasked with installing GRUB on the legacy MBR of the SATA hard drive. Which of the following commands will help the administrator accomplish this task?

   • Agrub-install /dev/hda
   • Bgrub-install /dev/sda
   • Cgrub-install /dev/sr0
   • Dgrub-install /dev/hd0,0

   Show answer

   Answer: B

   Explanation

   The GRUB boot loader is a crucial component of a Linux system. It is responsible for loading the operating system into memory and allowing the user to select the desired operating system to boot into. In order to install GRUB on a legacy MBR (Master Boot Record) of a SATA hard drive, the administrator needs to specify the correct device name. The device name is used to identify the hard drive in the system, and it must be specified correctly in order for GRUB to be installed and function properly. The correct device name to use in this scenario would be /dev/sda. The /dev/sda device name is the standard name used to identify the first SATA hard drive on a system. This is the device name that should be specified in the grub-install command

   Source: Adapted from community discussion — linux_admin

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4. Question 254 · 300 in bank

   A junior Linux administrator is tasked with installing an application. The installation guide states the application should only be installed in a run level 5 environment.

   

   Which of the following commands would ensure the server is set to runlevel 5?

   • Asystemctl isolate multi-user.target
   • Bsystemctl isolate graphical.target
   • Csystemctl isolate network.target
   • Dsystemctl isolate basic.target

   Show answer

   Answer: B

   Explanation

   System V runlevel (Purpose) runlevel 0 - (for System shutdown) runlevel1 (for Single-user mode) runlevel2 (for Local multiuser without remote network) runlevel3 (for Full multiuser with network) runlevel4 (for Unused/User-defined) runlevel5 (for Full multiuser with network and display manager) runlevel6 (for System reboot)

   Source: Adapted from community discussion — angellorv

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5. Question 255 · 300 in bank

   A Linux administrator is tasked with adding users to the system. However, the administrator wants to ensure the users’ access will be disabled once the project is over. The expiration date should be 2021-09-30. Which of the following commands will accomplish this task?

   • Asudo useradd -e 2021-09-30 Project_user
   • Bsudo useradd -c 2021-09-30 Project_user
   • Csudo modinfo -F 2021-09-30 Project_uses
   • Dsudo useradd -m -d 2021-09-30 Project_user

   Show answer

   Answer: A

   Explanation

   The correct command to accomplish the task is A: sudo useradd -e 2021-09-30 Project_user. The -e option is used to specify the expiration date for the user account.

   Source: Adapted from community discussion — linux_admin

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6. Question 256 · 300 in bank

   A DevOps engineer needs to download a Git repository from https://git.company.com/admin/project.git. Which of the following commands will achieve this goal?

   • Agit clone https://git.company.com/admin/project.git
   • Bgit checkout https://git.company.com/admin/project.git
   • Cgit pull https://git.company.com/admin/project.git
   • Dgit branch https://git.company.com/admin/project.git

   Show answer

   Answer: A

   Explanation

   git clone is the best option if its a new project. git pull would work best if it was an ongoing project that had multiple team members that had pushed their updates to the main repository

   Source: Adapted from community discussion — Ckl22

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7. Question 257 · 300 in bank

   An administrator installed an application from source into /opt/operations1/ and has received numerous reports that users are not able to access the application without having to use the full path /opt/operations1/bin/*. Which of the following commands should be used to resolve this issue?

   • Aecho 'export PATH=$PATH:/opt/operations1/bin' >> /etc/profile
   • Becho 'export PATH=/opt/operations1/bin' >> /etc/profile
   • Cecho 'export PATH=$PATH/opt/operations1/bin' >> /etc/profile
   • Decho 'export $PATH:/opt/operations1/bin' >> /etc/profile

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   Answer: A

   Explanation

   This command adds the path /opt/operations1/bin to the $PATH environment variable in the /etc/profile file. This will allow users to access the application without having to use the full path /opt/operations1/bin/*.

   Source: Adapted from community discussion — linux_admin

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8. Question 258 · 300 in bank

   Select 3

   A Linux system is getting an error indicating the root filesystem is full. Which of the following commands should be used by the systems administrator to resolve this issue? (Choose three.)

   • Adf -h /
   • Bfdisk -1 /dev/sdb
   • Cgrowpart /dev/mapper/rootvg-rootlv
   • Dpvcreate /dev/sdb
   • Elvresize –L +10G -r /dev/mapper/rootvg-rootlv
   • Flsblk /dev/sda
   • Gparted -l /dev/mapper/rootvg-rootlv
   • Hvgextend /dev/rootvg /dev/sdb

   Show answer

   Answer: DEH

   Explanation

   DEH. But in this order: DHE. D. 'pvcreate /dev/sdb' (Create a physical volume for LVM on the new disk.) H. 'vgextend /dev/rootvg /dev/sdb' (Extend volume group to include new disk.) E. 'lvresize –L +10G -r /dev/mapper/rootvg-rootlv' (Add space to logical volume.)

   Source: Adapted from community discussion — e418137

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9. Question 259 · 300 in bank

   A cloud engineer is asked to copy the file deployment.yaml from a container to the host where the container is running. Which of the following commands can accomplish this task?

   • Adocker cp container_id/deployment.yaml deployment.yaml
   • Bdocker cp container_id:/deployment.yaml deployment.yaml
   • Cdocker cp deployment.yaml local://deployment.yaml
   • Ddocker cp container_id/deployment.yaml local://deployment.yaml

   Show answer

   Answer: B

   Explanation

   Given answer appears correct(B) The file is being copied from the container (SRC) to the host (DST) docker cp [OPTIONS] CONTAINER:SRC_PATH DEST_PATH|- docker cp [OPTIONS] SRC_PATH|- CONTAINER:DEST_PATH

   Source: Adapted from community discussion — Ckl22

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10. Question 260 · 300 in bank

    Select 2

    A Linux system is failing to start due to issues with several critical system processes. Which of the following options can be used to boot the system into the single user mode? (Choose two.)

    • AExecute the following command from the GRUB rescue shell: mount -o remount, ro/sysroot.
    • BInterrupt the boot process in the GRUB menu and add systemd.unit=single in the kernel line.
    • CInterrupt the boot process in the GRUB menu and add systemd.unit=rescue.target in the kernel line.
    • DInterrupt the boot process in the GRUB menu and add single=user in the kernel line.
    • EInterrupt the boot process in the GRUB menu and add init=/bin/bash in the kernel line.
    • FInterrupt the boot process in the GRUB menu and add systemd.unit=single.target in the kernel line.

    Show answer

    Answer: CE

    Explanation

    I think the given answer (CE) is correct - C. "systems.unit=rescue.target" will put you in single-user mode - E. 1. In GRUB, press E to edit your boot entry (the Ubuntu entry). 2. Look for the line that starts with linux, and then look for ro. 3. Replace ro with rw init=/bin/bash. This action mounts your file system as read-write and uses /bin/bash as the init process. 4. Press Ctrl+X to reboot with these settings

    Source: Adapted from community discussion — Ckl22

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XK0-005 practice, question 251. 300 questions available.