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CompTIA XK0-005 (CompTIA Linux+ Certification) certification exam is an excellent opportunity for IT professionals to showcase their knowledge and skills in Linux systems administration. CompTIA Linux+ Certification Exam certification exam is vendor-neutral and covers a wide range of topics that are essential for managing Linux systems. By passing this certification exam, candidates can enhance their career prospects in the IT industry and demonstrate their proficiency in Linux systems administration.

CompTIA XK0-005 (CompTIA Linux+ Certification) exam is designed to test the skills and knowledge of IT professionals who work with Linux operating systems. Linux has become an increasingly popular operating system for servers and other computing environments, and IT professionals who are proficient in Linux are in high demand. Earning the CompTIA Linux+ certification demonstrates that an IT professional has the necessary knowledge and skills to work with Linux and can add value to their organization.

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CompTIA Linux+ Certification Exam Sample Questions (Q805-Q810):

NEW QUESTION # 805
Joe, a user, is unable to log in to the Linux system. Given the following output:
Which of the following commands would resolve the issue?

A. passwd -u joe
B. usermod -s /bin/bash joe
C. chage -E 90 joe
D. pam_tally2 -u joe -r

Answer: D

Explanation:
The command pam_tally2 -u joe -r will resolve the issue of Joe being unable to log in to the Linux system.
The pam_tally2 command is a tool for managing the login counter for the PAM (Pluggable Authentication Modules) system. PAM is a framework for managing authentication and authorization on Linux systems.
PAM allows the administrator to define the rules and policies for accessing various system resources and services, such as login, sudo, ssh, or cron. PAM also supports different types of authentication methods, such as passwords, tokens, biometrics, or smart cards. PAM can be used to implement login restrictions, such as limiting the number of failed login attempts, locking the account after a certain number of failures, or enforcing a minimum or maximum time between login attempts. The pam_tally2 command can display, reset, or unlock the login counter for the users or hosts. The -u joe option specifies the user name that the command should apply to. The -r option resets the login counter for the user. The command pam_tally2 -u joe -r will reset the login counter for Joe, which will unlock his account and allow him to log in to the Linux system.
This will resolve the issue of Joe being unable to log in to the Linux system. This is the correct command to use to resolve the issue. The other options are incorrect because they either do not unlock the account (usermod -s /bin/bash joe or passwd -u joe) or do not affect the login counter (chage -E 90 joe). References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 17: Implementing Basic Security, page 517.

NEW QUESTION # 806
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?

A. tcpdump -nL
B. netstat -pn
C. lsof -It
D. ss -pint

Answer: D

Explanation:
The command ss -pint will allow the administrator to obtain the needed information about processes that are listening on the network ports of a Linux server. The ss command is a tool for displaying socket statistics on Linux systems. Sockets are endpoints of network communication that allow processes to exchange data over the network. The ss command can show various information about the sockets, such as the state, address, port, protocol, and process. The -pint option specifies the filters and flags that the ss command should apply. The - p option shows the process name and ID that owns the socket. The -i option shows the internal information about the socket, such as the send and receive queue, the congestion window, and the retransmission timeout.
The -n option shows the numerical address and port, instead of resolving the hostnames and service names.
The -t option shows only the TCP sockets, which are the most common type of sockets used for network communication. The command ss -pint will display the socket statistics for the TCP sockets, along with the process name and ID, the numerical address and port, and the internal information. This will allow the administrator to obtain the needed information about processes that are listening on the network ports of a Linux server. This is the correct command to use to obtain the needed information. The other options are incorrect because they either do not show the socket statistics (tcpdump -nL or lsof -It) or do not show the process name and ID (netstat -pn). References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 12: Managing Network Connections, page 389.

NEW QUESTION # 807
A systems administrator needs to check if the service systemd-resolved.service is running without any errors.
Which of the following commands will show this information?

A. systemctl show systemd-resolved.service
B. systemctl mask systemd-resolved.service
C. systemctl status systemd-resolved.service
D. systemctl enable systemd-resolved.service

Answer: C

Explanation:
Explanation
The command systemctl status systemd-resolved.service will show the information about the service systemd-resolved.service. The systemctl command is a tool for managing system services and units.
The status option displays the current status of a unit, such as active, inactive, or failed. The output also shows the unit description, loaded configuration, process ID, memory usage, and recent log messages. This command will show if the service systemd-resolved.service is running without any errors. This is the correct command to use to accomplish the task. The other options are incorrect because they either perform different actions (enable, mask, or show) or do not show the status of the service (systemctl show systemd-resolved.service only shows the properties of the service, not the status). References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 14: Managing Processes and Scheduling Tasks, page
427.

NEW QUESTION # 808
A new drive was recently added to a Linux system. Using the environment and tokens provided, complete the following tasks:
* Create an appropriate device label.
* Format and create an ext4 file system on the new partition.
The current working directory is /.

Answer:

Explanation:

Explanation

To create an appropriate device label, format and create an ext4 file system on the new partition, you can use the following commands:
To create a GPT (GUID Partition Table) label on the new drive /dev/sdc, you can use thepartedcommand with the-soption (for script mode), the device name (/dev/sdc), themklabelcommand, and the label type (gpt). The command is:
parted -s /dev/sdc mklabel gpt
To create a primary partition of 10 GB on the new drive /dev/sdc, you can use thepartedcommand with the-soption, the device name (/dev/sdc), themkpartcommand, the partition type (primary), the file system type (ext4), and the start and end points of the partition (1 and 10G). The command is:
parted -s /dev/sdc mkpart primary ext4 1 10G
To format and create an ext4 file system on the new partition /dev/sdc1, you can use themkfscommand with the file system type (ext4) and the device name (/dev/sdc1). The command is:
mkfs.ext4 /dev/sdc1
You can verify that the new partition and file system have been created by using thelsblkcommand, which will list all block devices and their properties.

NEW QUESTION # 809
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?

A. sudo fdisk /dev/sda
B. sudo fdisk -h
C. sudo fdisk -l
D. sudo fdisk -s /dev/sda

Answer: C

Explanation:
The command sudo fdisk -l should be issued to verify the device name of the partition. The sudo command allows the administrator to run commands as the superuser or another user. The fdisk command is a tool for manipulating disk partitions on Linux systems. The -l option lists the partitions on all disks or a specific disk. The command sudo fdisk -l will show the device names, sizes, types, and other information of the partitions on all disks. The administrator can identify the device name of the partition by looking at the output. This is the correct command to use to accomplish the task. The other options are incorrect because they either do not list the partitions (sudo fdisk /dev/sda or sudo fdisk -h) or do not exist (sudo fdisk -s /dev/sda). Reference: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 10: Managing Storage, page 317.

NEW QUESTION # 810
......

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