XK0-005 practice questions 71–78

1. Question 71 · 300 in bank

   Which of the following enables administrators to configure and enforce MFA on a Linux system?

   • AKerberos
   • BSELinux
   • CPAM
   • DPKI

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   Answer: C

   Explanation

   The technology that enables administrators to configure and enforce Multi-Factor Authentication (MFA) on a Linux system is: C. PAM (Pluggable Authentication Modules) Explanation: PAM (Pluggable Authentication Modules) is a framework that allows the integration of multiple authentication schemes for Linux systems. It provides a way for administrators to configure and enforce MFA for user authentication by enabling the use of multiple factors, such as passwords, smart cards, biometrics, and others. PAM allows the configuration of authentication policies for different services and applications running on a Linux system. This makes it possible to implement MFA for specific applications or services, rather than applying it to the entire system. Additionally, PAM allows administrators to configure different authentication methods for different users or user groups, depending on their access requirements.

   Source: Adapted from community discussion — linux_admin

   References

   • redhat.com documentation

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2. Question 72 · 300 in bank

   A database administrator requested the installation of a custom database on one of the servers. Which of the following should the Linux administrator configure so the requested packages can be installed?

   • A/etc/yum.conf
   • B/etc/ssh/sshd.conf
   • C/etc/yum.repos.d/db.repo
   • D/etc/resolv.conf

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   Answer: C

   Explanation

   C. /etc/yum.repos.d/db.repo Explanation: YUM (Yellowdog Updater, Modified) is a package manager that allows installation, removal, and update of software packages on Linux systems. YUM uses repositories (usually hosted on the internet) to retrieve the necessary packages. The /etc/yum.repos.d directory contains the configuration files for the repositories used by YUM. By default, YUM is configured to use the repositories listed in the /etc/yum.conf file, but custom repositories can be added to the /etc/yum.repos.d directory.

   Source: Adapted from community discussion — linux_admin

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3. Question 73 · 300 in bank

   In which of the following filesystems are system logs commonly stored?

   • A/var
   • B/tmp
   • C/etc
   • D/opt

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   Answer: A

   Explanation

   A. /var Explanation: In Linux, system logs are commonly stored in the /var (variable) filesystem, specifically in the /var/log directory. This directory contains logs for various system services and applications, such as the syslog, mail, and authentication logs. The /tmp directory is a temporary filesystem that is used to store temporary files and directories created by system processes and applications. It is typically cleared on system reboot, and its contents should not be relied on for long-term storage. The /etc directory contains configuration files for the system and various applications, but it does not typically store system logs. The /opt directory is used to install additional software packages, but it is not a standard location for storing system logs.

   Source: Adapted from community discussion — linux_admin

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4. Question 74 · 300 in bank

   A systems administrator has been unable to terminate a process. Which of the following should the administrator use to forcibly stop the process?

   • Akill -1
   • Bkill -3
   • Ckill -15
   • Dkill -HUP
   • Ekill -TERM

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   Answer: C

   Explanation

   It seems to me that the correct answer is not here. Kill -9 is the right answer, all of the other answers are wrong. Kill -1 restart process kill -3 send a control c that can be ignored kill - 15 = request a graceful shutdown that can be ignored kill -HUP same as kill -1 kill -TERM same as kill -15

   Source: Adapted from community discussion — TheRealManish

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5. Question 75 · 300 in bank

   A systems administrator is compiling a report containing information about processes that are listening on the network ports of a Linux server. Which of the following commands will allow the administrator to obtain the needed information?

   • Ass -plnt
   • Btcpdump -nL
   • Cnetstat -pn
   • Dlsof -lt

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   Answer: A

   Explanation

   A. ss -plnt Explanation: The ss command in Linux is used to display detailed socket information, such as which processes are listening on which ports, among other things. The -p option displays the process ID and process name that are using the socket. The -l option displays only listening sockets. The -n option displays the port numbers in numerical form, and the -t option displays only TCP sockets. C. netstat -pn - This command displays information about network connections, routing tables, and a variety of network statistics. The -p option shows the process ID and process name associated with each socket, but it may not work on all systems, and netstat itself has largely been deprecated in favor of newer utilities like ss.

   Source: Adapted from community discussion — linux_admin

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6. Question 78 · 300 in bank

   A Linux administrator would like to use systemd to schedule a job to run every two hours. The administrator creates timer and service definitions and restarts the server to load these new configurations. After the restart, the administrator checks the log file and notices that the job is only running daily. Which of the following is MOST likely causing the issue?

   • AThe checkdiskspace.service is not running.
   • BThe checkdiskspace.service needs to be enabled.
   • CThe OnCalendar schedule is incorrect in the timer definition.
   • DThe system-daemon services need to be reloaded.

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   Answer: C

   Explanation

   When you restart a Linux server, the init system (such as systemd) automatically reloads the unit files, so you don't need to explicitly run the command systemctl daemon-reload to reread the unit files. The systemctl daemon-reload command is typically used when you make changes to the unit files manually and want to inform the init system to reload the updated configuration without restarting the entire server. This command tells systemd to reparse the unit files and update its internal configuration. However, during a server restart, systemd performs a complete reload of the unit files as part of the initialization process. It reads the unit files from their defined locations and applies the configuration without the need for an explicit daemon-reload command. So, when you restart the server, systemd will automatically reload the unit files, ensuring that the updated configuration is applied, and the services are started based on the latest settings. The correct answer is C. :)

   Source: Adapted from community discussion — mrtwister76

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XK0-005 practice, question 71. 300 questions available.