XK0-005 practice questions 191–200

1. Question 191 · 300 in bank

   Several users reported that they were unable to write data to the /oracle1 directory. The following output has been provided:

   

   Which of the following commands should the administrator use to diagnose the issue?

   • Adf -i /oracle1
   • Bfdisk -1 /dev/sdb1
   • Clsblk /dev/sdb1
   • Ddu -sh /oracle1

   Show answer

   Answer: A

   Explanation

   The df -i command displays the amount of available inodes on the file system containing each file name argument. An inode is a data structure used by the file system to store information about a file or directory, such as its permissions, ownership, timestamps, and location of its data. If you're encountering issues with writing data to the /oracle1 directory, running df -i /oracle1 can provide information about the inode utilization on the file system containing that directory, which could be indicative of a disk space issue. The IUse% column shows the percentage of inodes that are currently in use. If this value is close to 100%, it could mean that there are no available inodes for new files or directories to be created in the file system, and you may need to either free up some space or increase the size of the file system to resolve the issue.

   Source: Adapted from community discussion — linux_admin

   Next question

2. Question 192 · 300 in bank

   A Linux administrator is tasked with moving files in a database server. The administrator must not overwrite any existing files. Which of the following commands would indicate that the file already exists?

   • Amv –i filename /tmp/backup
   • Bmv –b filename /tmp/backup
   • Cmv –n filename /tmp/backup
   • Dmv –f filename /tmp/backup

   Show answer

   Answer: A

   Explanation

   -n prevents the files from being overwritten. However the question asks "which command would indicate that the file already exists". The only command here that would tell the user that the file already exists is -i (interactive), where it would prompt the user if they want to overwrite an existing file.

   Source: Adapted from community discussion — lexdaniel

   Next question

3. Question 193 · 300 in bank

   After installing some RPM packages, a systems administrator discovers the last package that was installed was not needed. Which of the following commands can be used to remove the package?

   • Adnf remove packagename
   • Bapt-get remove packagename
   • Crpm -i packagename
   • Dapt remove packagename

   Show answer

   Answer: A

   Explanation

   If you are using a Red Hat-based Linux distribution, such as Fedora or CentOS, the correct command to remove an RPM package that was installed is dnf remove packagename or rpm -e packagename. In this case, the command dnf remove packagename should be used as it is the modern package manager for Fedora and CentOS. The rpm -e packagename command is also correct, but dnf is recommended as it provides improved functionality over rpm. apt-get remove packagename and apt remove packagename are commands used to remove packages on Debian-based distributions such as Ubuntu, and are not relevant for Red Hat-based distributions.

   Source: Adapted from community discussion — linux_admin

   Next question

4. Question 194 · 300 in bank

   A Linux administrator is removing non-permanent rules from the system firewall. Which of the following commands will allow the administrator to achieve this goal in the safest way possible?

   • Afirewall-cmd –-set-default-zone
   • Bfirewall-cmd –-runtime-to-permanent
   • Cfirewall-cmd –-reload
   • Dfirewall-cmd –-complete-reload

   Show answer

   Answer: C

   Explanation

   firewall-cmd --runtime-to-permanent sets the current rules to permanent, it doesn't remove non-permanent rules. --reload will reload the firewall config and remove any non-persistent rules that were added during the current session.

   Source: Adapted from community discussion — lexdaniel

   Next question

5. Question 195 · 300 in bank

   A systems administrator is checking the system logs. The administrator wants to look at the last 20 lines of a log. Which of the following will execute the command?

   • Atail -v 20
   • Btail -n 20
   • Ctail -c 20
   • Dtail -l 20

   Show answer

   Answer: B

   Explanation

   The correct command to look at the last 20 lines of a log is tail -n 20. The tail command is used to display the last part of a file, and the -n option is used to specify the number of lines to display. In this case, the administrator wants to display the last 20 lines of the log, so the correct command is tail -n 20.

   Source: Adapted from community discussion — linux_admin

   Next question

6. Question 196 · 300 in bank

   An administrator is trying to diagnose a performance issue and is reviewing the following output:

   

   System Properties: CPU: 4 vCPU - Memory: 40GB - Disk maximum IOPS: 690 - Disk maximum throughput: 44Mbps | 44000Kbps Based on the above output, which of the following BEST describes the root cause?

   • AThe system has reached its maximum IOPS, causing the system to be slow.
   • BThe system has reached its maximum permitted throughput, therefore iowait is increasing.
   • CThe system is mostly idle, therefore the iowait is high.
   • DThe system has a partitioned disk, which causes the IOPS to be doubled.

   Show answer

   Answer: B

   Next question

7. Question 197 · 300 in bank

   A systems administrator wants to test the route between IP address 10.0.2.15 and IP address 192.168.1.40. Which of the following commands will accomplish this task?

   • Aroute -e get to 192.168.1.40 from 10.0.2.15
   • Bip route get 192.163.1.40 from 10.0.2.15
   • Cip route 192.169.1.40 to 10.0.2.15
   • Droute -n 192.168.1.40 from 10.0.2.15

   Show answer

   Answer: B

   Explanation

   Can someone please explain whey the answer is ip route get 192.163.1.40 from 10.0.2.15 and not either A or D? Where id d192.163.1.40 even come from?

   Source: Adapted from community discussion — Lwarder1

   Next question

8. Question 198 · 300 in bank

   A Linux administrator needs to redirect all HTTP traffic temporarily to the new proxy server 192.0.2.25 on port 3128. Which of the following commands will accomplish this task?

   • Aiptables -t nat -D PREROUTING -p tcp --sport 80 -j DNAT - -to-destination 192.0.2.25:3128
   • Biptables -t nat -A PREROUTING -p top --dport 81 -j DNAT –-to-destination 192.0.2.25:3129
   • Ciptables -t nat -I PREROUTING -p top --sport 80 -j DNAT –-to-destination 192.0.2.25:3129
   • Diptables -t nat -A PREROUTING -p tcp --dport 80 -j DNAT –-to-destination 192.0.2.25:3128

   Show answer

   Answer: D

   Explanation

   The command "iptables -t nat -A PREROUTING -p tcp --dport 80 -j DNAT –-to-destination 192.0.2.25:3128" will temporarily redirect all HTTP traffic to the new proxy server at IP address 192.0.2.25 and port 3128. The options used in this command are: -t nat: Specifies the table (nat) to be used for this operation -A PREROUTING: Specifies that the rule should be added to the PREROUTING chain, which is used to manipulate incoming packets before they are processed by the routing decision -p tcp: Specifies that the rule should apply to TCP packets --dport 80: Specifies that the rule should apply to incoming packets destined for port 80 (the default HTTP port) -j DNAT: Specifies that the target of the rule should be DNAT (Destination NAT), which rewrites the destination address of a packet --to-destination 192.0.2.25:3128: Specifies the destination address and port to which incoming packets should be redirected Note: After executing this command, the administrator should make sure to save the iptables configuration, so that it will persist after a reboot.

   Source: Adapted from community discussion — linux_admin

   Next question

9. Question 199 · 300 in bank

   A Linux administrator was tasked with deleting all files and directories with names that are contained in the sobelete.txt file. Which of the following commands will accomplish this task?

   • Axargs -f cat toDelete.txt -rm
   • Brm -d -r -f toDelete.txt
   • Ccat toDelete.txt | rm -frd
   • Dcat toDelete.txt | xargs rm -rf

   Show answer

   Answer: D

   Explanation

   D. cat toDelete.txt | xargs rm -rf The "cat toDelete.txt" command will display the contents of the "toDelete.txt" file, which contains the names of the files and directories to be deleted. The "xargs rm -rf" command will take the standard input from the "cat" command and pass it as arguments to the "rm" command. The "-rf" options of the "rm" command are used to forcibly delete the specified files and directories, including any files and directories within them, even if they are write-protected. The "xargs" command is used here to process the input one line at a time and execute the "rm" command for each line.

   Source: Adapted from community discussion — linux_admin

   Next question

10. Question 200 · 300 in bank

    A Linux administrator is troubleshooting the root cause of a high CPU load and average.

    

    Which of the following commands will permanently resolve the issue?

    • Arenice -n -20 6295
    • Bpstree -p 6295
    • Ciostat -cy 1 5
    • Dkill -9 6295

    Show answer

    Answer: D

    Explanation

    D. kill -9 6295 The command "renice -n -20 6295" changes the priority of the process with ID 6295 to a higher priority by assigning it a nice value of -20.

    Source: Adapted from community discussion — linux_admin

    Next question

Keyboard:J Kmove between questionsA–Dselect an answerRshow or hide the answer← →change page

XK0-005 practice, question 191. 300 questions available.