XK0-005 practice questions 281–290

1. Question 281 · 300 in bank

   A systems administrator is analyzing the data usage on a Linux system. Which of the following commands will display a list of the entire /var contents along with sizes?

   • Als –ltr /var | sort –n
   • Bdf –h /var
   • Cdu –ah /var/
   • Dlsblk /var

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   Answer: C

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2. Question 282 · 300 in bank

   An administrator completes maintenance on a server but cannot remount the logical volume. Given the following output:

   

   Which of the following commands should the administrator execute to resolve the issue?

   • Avgchange -ay data
   • Blvscan --all
   • Cvgimport data
   • Dlvchange -ay /dev/data/files

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   Answer: A

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3. Question 283 · 300 in bank

   A server’s IP address has been changed from 10.115.6.5 to 10.116.6.5. Because of this change, the application server needs to be reconfigured. Which of the following commands will allow the systems engineer to change the IP address in the /etc/app.cfg file quickly?

   • Aawk '{rep(/10.115.6.5/"10.116.6.5")}" /etc/app.cfg
   • Bperl -i 's/10.115.6.5/10.116.6.5/g" /etc/app.cfg
   • Csed -i 's/10.115.6.5/10.116.6.5/g' /etc/app.cfg
   • Dpython -c “import sys;print file.replace('10.115.6.5','10.116.6.5')" < /etc/app.cfg

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   Answer: C

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4. Question 284 · 300 in bank

   A user receives the following message when attempting to log in to a Linux workstation with the account named "developer": This account is currently not available A Linux administrator, who is working on the issue for the user, runs a few commands and receives the following output: Output 1: # grep -i developer /etc/passwd developer:x:1000:1000:Dev User:/home/developer:/sbin/nologin Output 2: # faillock —-user developer developer: When Type Source Valid - # Output 3: # passwd -S developer developer PS 2022-03-09 0 99999 7 -l (Password set, unknown crypt variant.) Output 4:

   

   Which of the following commands can the administrator use to resolve the login issue for the account named "developer"?

   • Apasswd -u developer
   • Bchage -M -l developer
   • Cusermod developer -s /bin/bash
   • Dfaillock --user developer --reset

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   Answer: C

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5. Question 285 · 300 in bank

   An administrator thinks that the user Joe may be running an unauthorized process on a Linux server. Which of the following commands should the administrator run to confirm this idea?

   • Alsof -p 'Joe'
   • Btop -u 'Joe'
   • Cjobs -n 'Joe'
   • Dps -ax 'Joe'

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   Answer: B

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6. Question 286 · 300 in bank

   Before a Linux administrator restarts a system using systemd, the administrator wants to know if any of the server users are currently logged in. Which of the following commands should the administrator use to verify that the server is not being used?

   • Aloginctl list-sessions
   • Bjournalctl -u
   • Csystemctl status user-sessions
   • Dsystemd --user

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   Answer: A

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7. Question 287 · 300 in bank

   Select 2

   Users connecting to a MySQL database on a Linux system report frequent errors. An administrator reviews the following partial output of the /proc/meminfo and free commands:

   

   Which of the following should the administrator do to ensure that the MySQL service will continue to run even if the system runs out of swap space? (Choose two.)

   • AIssue the sysctl -w vm.overcommit_ratio=100 command.
   • BIssue the sysctl -w vm.overcommit_memory=2 command.
   • CIssue the dd if=/dev/zero of=/swapfile bs=1024 count=65536 command.
   • DIssue the mkswap /dev/sda2; swapon -v /dev/sda2 command.
   • EReload the /etc/fstab file by issuing the mount -a command.
   • FUse disk quotas on the swap space to prevent MySQL from overutilizing the swap partition.

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   Answer: CD

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8. Question 288 · 300 in bank

   A user reports performance degradation on a server that is running their web application. Given the following information about the system:

   

   Which of the following describes the ongoing behavior?

   • AThe web application process is causing the load average to rise, resulting in the latency.
   • BThe web application process is running at a priority of 20, which is starving the kernel.
   • CThe web application process is consuming all system memory, causing the system to use swap space.
   • DThe web application process is consuming all cores, leading the system to run out of compute power.

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   Answer: C

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9. Question 289 · 300 in bank

   Which of the following Git commands would send committed changes to a remote repository?

   • Agit stash
   • Bgit commit -a
   • Cgit push origin master
   • Dgit add *.*

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   Answer: C

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10. Question 290 · 300 in bank

    A Linux administrator is changing the default system umask. The newly created files should have the -rw-r----- permission, and the newly created directories should have the drwxr----x permission. Which of the following commands should the administrator use?

    • Aumask 0035
    • Bumask 0036
    • Cumask 0037
    • Dumask 0038

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    Answer: B

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XK0-005 practice, question 281. 300 questions available.