XK0-005 Latest Exam Format & Valid XK0-005 Test Objectives

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The XK0-005 exam is designed for individuals with a minimum of 12 months of Linux administration experience. It is recommended that candidates have a CompTIA A+ and CompTIA Network+ certification, or equivalent experience, before attempting XK0-005 Exam. Upon passing the exam, candidates will earn the CompTIA Linux+ certification, which is recognized by employers worldwide as a valuable credential for IT professionals working with Linux operating systems.

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CompTIA XK0-005, also known as CompTIA Linux+ Certification Exam, is a certification exam designed for IT professionals who are interested in demonstrating their knowledge and skills in Linux-based systems. XK0-005 Exam covers a wide range of topics including system architecture, Linux command line, file systems and storage, security, virtualization, and troubleshooting. CompTIA Linux+ Certification Exam certification validates the candidate's ability to perform tasks related to installation, configuration, management, and troubleshooting of Linux-based systems.

CompTIA Linux+ Certification Exam Sample Questions (Q410-Q415):

NEW QUESTION # 410
A cloud engineer needs to block the IP address 192.168.10.50 from accessing a Linux server. Which of the following commands will achieve this goal?

A. iptables -j INPUT 192.168.10.50 -p DROP
B. iptables -F INPUT -j 192.168.10.50 -m DROP
C. iptables -A INPUT -s 192.168.10.30 -j DROP
D. iptables -i INPUT --ipv4 192.168.10.50 -z DROP

Answer: C

Explanation:
The correct command to block the IP address 192.168.10.50 from accessing a Linux server is iptables -A INPUT -s 192.168.10.50 -j DROP. This command appends a rule to the INPUT chain that matches the source address 192.168.10.50 and jumps to the DROP target, which discards the packet. The other commands are incorrect because they either have invalid syntax, wrong parameters, or wrong order of arguments. Reference: CompTIA Linux+ Study Guide, Fourth Edition, page 457-458.

NEW QUESTION # 411
A Linux administrator found many containers in an exited state. Which of the following commands will allow the administrator to clean up the containers in an exited state?

A. docker rm --all
B. docker rm --state exited
C. docker images prune *
D. docker rm $(docker ps -aq)

Answer: D

Explanation:
The command docker rm $(docker ps -aq) will allow the administrator to clean up the containers in an exited state. The docker command is a tool for managing Docker containers on Linux systems. Docker containers are isolated and lightweight environments that can run applications and services without affecting the host system. Docker uses images to create containers, which are files that contain the code, libraries, dependencies, and configuration of the applications and services. The rm option removes one or more containers. The $(docker ps -aq) is a command substitution that executes the command inside the parentheses and replaces it with the output. The docker ps -aq command lists all the containers, including the ones in an exited state, and shows only their IDs. The docker rm $(docker ps -aq) command will remove all the containers, including the ones in an exited state, by passing their IDs to the rm option. This will allow the administrator to clean up the containers in an exited state. This is the correct command to use to accomplish the task. The other options are incorrect because they either do not exist (docker rm --all or docker rm --state exited) or do not remove the containers (docker images prune *). Reference: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 19: Managing Cloud and Virtualization Technologies, page 571.

NEW QUESTION # 412
A systems administrator pressed Ctrl+Z after starting a program using the command line, and the shell prompt was presented. In order to go back to the program, which of the following commands can the administrator use?

A. fg
B. su
C. bg
D. ed

Answer: A

Explanation:
Explanation
Ctrl+Z suspended the process, and "fg" will bring it back into the foreground of the shell A Comprehensive and Detailed Explanation: To go back to a program that was suspended by pressing Ctrl+Z in the command line, the command that can be used is fg. The fg command stands for foreground, and it resumes the job that is next in the queue and brings it to the foreground. Alternatively, if there are more than one suspended jobs, fg can be followed by a job number to resume a specific job. The other commands are incorrect because they either do not resume a suspended job, or they have different functions such as switching user (su), pushing a job to the background (bg), or editing a file (ed). References: CompTIA Linux+ Study Guide, Fourth Edition, page 181-182.

NEW QUESTION # 413
A systems administrator is tasked with changing the default shell of a system account in order to disable iterative logins. Which of the following is the best option for the administrator to use as the new shell?

A. /bin/ sh
B. /bin/bash
C. /sbin/ setenforce
D. /sbin/nologin

Answer: D

Explanation:
The /sbin/nologin shell is a special shell that prevents the user from logging into an interactive session. It is commonly used for system accounts that are not meant to be accessed by users, such as daemon or service accounts. When a user tries to log in with this shell, they will see a message like "This account is currently not available" and the login will fail.
Reference:
The /sbin/nologin shell is listed as one of the valid shells in the /etc/shells file1.
The CompTIA Linux+ Certification Exam Objectives mention that the candidate should be able to "configure and manage system accounts and groups, including password aging and restricted shells" as part of the Hardware and System Configuration domain2.
The usermod command can be used to change the user's login shell with the -s or --shell option3. For example, to change the shell of a user named daemon to /sbin/nologin, the command would be: sudo usermod -s /sbin/nologin daemon

NEW QUESTION # 414
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?

A. The system has a partitioned disk, which causes the IOPS to be doubled.
B. The system is mostly idle, therefore the iowait is high.
C. The system has reached its maximum permitted throughput, therefore iowait is increasing.
D. The system has reached its maximum IOPS, causing the system to be slow.

Answer: C

Explanation:
The system has reached its maximum permitted throughput, therefore iowait is increasing. The output of iostat -x shows that the device sda has an average throughput of 44.01 MB/s, which is equal to the disk maximum throughput of 44 Mbps. The output also shows that the device sda has an average iowait of
99.99%, which means that the CPU is waiting for the disk to complete the I/O requests. This indicates that the disk is the bottleneck and the system is slow due to the high iowait. The other options are incorrect because they are not supported by the outputs. The system has not reached its maximum IOPS, as the device sda has an average IOPS of 563.50, which is lower than the disk maximum IOPS of 690. The system is not mostly idle, as the output of top shows that the CPU is 100% busy. The system does not have a partitioned disk, as the output of lsblk shows that the device sda has only one partition sda1. References: CompTIA Linux+ (XK0-
005) Certification Study Guide, Chapter 17: Optimizing Linux Systems, pages 513-514.

NEW QUESTION # 415
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XK0-005 Latest Exam Format & Valid XK0-005 Test Objectives

Free PDF Quiz CompTIA - Valid XK0-005 - CompTIA Linux+ Certification Exam Latest Exam Format

CompTIA Linux+ Certification Exam Sample Questions (Q410-Q415):

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