EXAM XK0-005 PATTERN - FREE XK0-005 DOWNLOAD PDF

Exam XK0-005 Pattern - Free XK0-005 Download Pdf

Exam XK0-005 Pattern - Free XK0-005 Download Pdf

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Latest CompTIA - XK0-005 - Exam CompTIA Linux+ Certification Exam Pattern

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CompTIA XK0-005 exam is a comprehensive exam that assesses the candidate's knowledge and skills in Linux administration. XK0-005 exam consists of multiple-choice questions and performance-based simulations that test the candidate's ability to perform real-world tasks in Linux administration. XK0-005 exam is divided into four domains, namely system configuration and management, network services, security, and troubleshooting and diagnostics.

CompTIA XK0-005 Exam is a relatively new certification, having been introduced in 2019 to replace the previous CompTIA Linux+ exam. The new exam has been updated to reflect the latest industry trends and technologies, including cloud computing, virtualization, and containers. It also includes a greater emphasis on security, reflecting the growing importance of cybersecurity in today's digital landscape.

CompTIA Linux+ Certification Exam Sample Questions (Q442-Q447):

NEW QUESTION # 442
A Linux systems administrator receives reports from various users that an application hosted on a server has stopped responding at similar times for several days in a row. The administrator logs in to the system and obtains the following output:
Output 1:

Output 2:

Output 3:

Which of the following should the administrator do to provide the BEST solution for the reported issue?

  • A. Configure memory allocation policies during business hours and prevent the Java process from going into a zombie state while the server is idle.
  • B. Configure a different nice value for the Java process to allow for more users and prevent the Java process from restarting during business hours.
  • C. Configure the swap space to allow for spikes in usage during peak hours and prevent the Java process from stopping due to a lack of memory.
  • D. Configure more CPU cores to allow for the server to allocate more processing and prevent the Java process from consuming all of the available resources.

Answer: C

Explanation:
Explanation
Based on the output of the image sent by the user, the system requires more swap space to allow for spikes in usage during peak hours and prevent the Java process from stopping due to a lack of memory. The output shows that there is only 0 MB of swap space available on the system, which means that there is no room for swapping out memory pages when physical memory is full or low. The output also shows that there is only
793 MB of available memory on the system, which may not be enough to handle high-demand applications such as Java. This may cause Java to stop working due to insufficient memory or trigger an OutOfMemoryError exception. Configuring more swap space on the system would help to alleviate this issue by providing more virtual memory for applications and improving performance. Configuring memory allocation policies during business hours will not help to solve this issue, as it will not increase the amount of available memory or swap space on the system. Configuring a different nice value for Java process will not help to solve this issue, as it will only affect its scheduling priority, not its memory consumption or allocation.
Configuring more CPU cores will not help to solve this issue, as it will only increase processing power, not memory capacity or availability. References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter
15: Managing Memory and Process Execution, page 468.


NEW QUESTION # 443
Users are unable to create new files on the company's FTP server, and an administrator is troubleshooting the issue. The administrator runs the following commands:

Which of the following is the cause of the issue based on the output above?

  • A. The inodes is at full capacity and would affect file creation for users.
  • B. ftpusers is mounted as read only.
  • C. The users do not have the correct permissions to create files on the FTP server.
  • D. The ftpusers filesystem does not have enough space.

Answer: A

Explanation:
The cause of the issue based on the output above is C. The inodes is at full capacity and would affect file creation for users.
An inode is a data structure that stores information about a file or directory, such as its name, size, permissions, owner, timestamps, and location on the disk. Each file or directory has a unique inode number that identifies it. The number of inodes on a filesystem is fixed when the filesystem is created, and it determines how many files and directories can be created on that filesystem. If the inodes are exhausted, no new files or directories can be created, even if there is enough disk space available.
The output for the second command shows that the /ftpusers/ filesystem has 0% of inodes available, which means that all the inodes have been used up. This would prevent users from creating new files on the FTP server. The administrator should either delete some unused files or directories to free up some inodes, or resize the filesystem to increase the number of inodes.
The other options are incorrect because:
A: The users do not have the correct permissions to create files on the FTP server.
This is not true, because the output for the first command shows that the /ftpusers/ filesystem has 26% of disk space available, which means that there is enough space for users to create files. The permissions of the files and directories are not shown in the output, but they are not relevant to the issue of inode exhaustion.
B: The ftpusers filesystem does not have enough space.
This is not true, because the output for the first command shows that the /ftpusers/ filesystem has 26% of disk space available, which means that there is enough space for users to create files. The issue is not related to disk space, but to inode capacity.
D: ftpusers is mounted as read only.
This is not true, because the output for the first command does not show any indication that the /ftpusers/ filesystem is mounted as read only. If it was, it would have an (ro) flag next to the mounted on column. A read only filesystem would prevent users from creating or modifying files on the FTP server, but it would not affect the inode usage.


NEW QUESTION # 444
An administrator needs to see a list of the system user's encrypted passwords.
Which of the following Linux files does the administrator need to read?

  • A. /etc/passwd
  • B. /etc/skel
  • C. /etc/pw
  • D. /etc/shadow

Answer: D

Explanation:
The encrypted passwords and other information such as password expiry information (the password aging information) are stored in /etc/shadow file.
https://www.cyberciti.biz/faq/where-are-the-passwords-of-the-users-located-in-linux/


NEW QUESTION # 445
A systems administrator is investigating a service that is not starting up. Given the following information:

Which of the following systemd commands should the administrator use in order to obtain more details about the failing service?

  • A. systemct1 info network
  • B. sysctl -a network
  • C. systemct1 analyze network
  • D. journalctl -xu network

Answer: D

Explanation:
The systemd is a system and service manager for Linux systems that provides a standard way to control and monitor system services. The systemd uses various commands and tools to manage and troubleshoot system services, such as systemct1, sysctl, and journalctl. The systemct1 command is used to start, stop, enable, disable, restart, reload, status, and list system services. The sysctl command is used to configure kernel parameters at runtime. The journalctl command is used to view and filter the logs of system services.
To investigate a service that is not starting up, the administrator can use the journalctl command with the - xu option. The -x option enables verbose output that includes explanatory text and priority information. The - u option filters the output by a specific unit name, such as network.service. Therefore, the command journalctl
-xu network will show detailed logs of the network service, which can help identify the cause of the failure.
The statement D is correct.
The statements A, B, and C are incorrect because they do not provide more details about the failing service.
The systemct1 analyze network command does not exist. The systemct1 info network command shows basic information about the network unit, such as description, load state, active state, sub state, and main PID.
The sysctl -a network command shows all kernel parameters related to network settings. References: [How to Use Systemd to Manage System Services]


NEW QUESTION # 446
A Linux administrator has set up a new DNS forwarder and is configuring all internal servers to use the new forwarder to look up external DNS requests. The administrator needs to modify the firewall on the server for the DNS forwarder to allow the internal servers to communicate to it and make the changes persistent between server reboots. Which of the following commands should be run on the DNS forwarder server to accomplish this task?

  • A. ufw allow out dns
  • B. iptables -A OUTPUT -p udp -ra udp -dport 53 -j ACCEPT
  • C. systemct1 reload firewalld
  • D. flrewall-cmd --zone-public --add-port-53/udp --permanent

Answer: D

Explanation:
Explanation
The command that should be run on the DNS forwarder server to accomplish the task is firewall-cmd
--zone=public --add-port=53/udp --permanent. The firewall-cmd command is a tool for managing firewalld, which is a firewall service that provides dynamic and persistent network security on Linux systems. The firewalld uses zones and services to define the rules and policies for the network traffic. The zones are logical groups of network interfaces and sources that have the same level of trust and security. The services are predefined sets of ports and protocols that are associated with certain applications or functions.
The --zone=public option specifies the zone name that the rule applies to. The public zone is the default zone that represents the untrusted network, such as the internet. The --add-port=53/udp option adds a port and protocol to the zone. The 53 is the port number that is used by the DNS service. The udp is the protocol that is used by the DNS service. The --permanent option makes the change persistent across reboots. The command firewall-cmd --zone=public --add-port=53/udp --permanent will modify the firewall on the server for the DNS forwarder to allow the internal servers to communicate to it and make the changes persistent between server reboots. This is the correct command to use to accomplish the task. The other options are incorrect because they either do not modify the firewall on the server for the DNS forwarder (ufw allow out dns or systemct1 reload firewalld) or do not use the correct syntax for the command (iptables -A OUTPUT -p udp -ra udp -dport 53 -j ACCEPT instead of iptables -A OUTPUT -p udp -ra udp --dport 53 -j ACCEPT). References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 12: Managing Network Connections, page 392.


NEW QUESTION # 447
......

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