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CompTIA Linux+ Certified IT Professional. Exam Overview
Exam XK0-004 issued by CompTIA will verify your knowledge of Linux OS from a vendor-neutral viewpoint. It covers all the key aspects of Linux Server Administration, networking, and security concepts. Therefore, if your goal is to become a CompTIA Linux+ certified expert in the IT field, apply for this test, as sitting for it only takes a maximum of an hour and a half.
However, after the last update, the new exam version has more focus on kernel modules, security, device management, storage and virtualization, git and automation, server and command line alongside networking and firewalls, and many other vital areas of Linux systems.
XK0-004 test costs $338 and is available in English. But, it will soon be available in Portuguese, Japanese, and Spanish too. Then, all standard rules regarding tests apply. You should expect not to have any learning materials with you during XK0-004 exam. Once you are done with it, your results will be communicated to you via email. It should be kept in mind that the test score is based on a scale of 100 to 900, and for you to pass, you should attain at least 720.
The exam includes various questions, such as performance-based, multiple responses, multiple-choice, and fill-in-the-blank. The overall total number of items is not more than 90.
Reference: https://certification.comptia.org/certifications/linux#overview
Skills Tested
The CompTIA XK0-004 exam is performance-based and encompasses the skills of some real-world jobs. Thus, the knowledge evaluated in the final test covers one’s ability and understanding to install and set up the Linux OS as well as execute standard operations using the Linux command line and manage Linux groups and users. Also, one should know how to create, modify, find, backup, and restore data in Linux. Among other things, you should be able to configure printers and other components remotely in Linux and understand the standard networking protocols and set up procedures.
Finally, the CompTIA XK0-004 exam will want you to carry out security checks and tasks like setting up passwords, encryption, and using the basic scripts and commands to manipulate information.
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CompTIA XK0-004 Exam Syllabus Topics:
| Topic | Details |
|---|---|
Hardware and System Configuration - 21% | |
| Explain Linux boot process concepts. | 1.Boot loaders
2.Boot options
2.File locations
3.Boot modules and files
4.Kernel panic |
| Given a scenario, install, configure, and monitor kernel modules. | 1.Commands
2.Locations
|
| Given a scenario, configure and verify network connection parameters. | 1.Diagnostic tools
2.Configuration files
3.Bonding
|
| Given a scenario, manage storage in a Linux environment. | 1.Basic partitions
2.File system hierarchy
3.Device mapper
4.Tools
5.Location
6.File system types
|
| Compare and contrast cloud and virtualization concepts and technologies. | 1.Templates
2.Bootstrapping
3.Storage
4.Network considerations
5.Types of hypervisors
|
| Given a scenario, configure localization options. | 1.File locations
2.Commands
3.Environment variables
4.Character sets
|
Systems Operation and Maintenance - 26% | |
| Given a scenario, conduct software installations, configurations, updates, and removals. | 1.Package types
2.Installation tools
3.Build tools
4.Repositories
5.Acquisition commands
|
| Given a scenario, manage users and groups. | 1.Creation
2.Modification
3.Deletion
4.Queries
5.Quotas
6.Profiles
7.Important files and file contents
|
| Given a scenario, create, modify, and redirect files. | 1.Text editors
2.File readers
3.Output redirection
4.Text processing
5.File and directory operations
|
| Given a scenario, manage services. | 1.Systemd management
2.SysVinit
|
| Summarize and explain server roles. | 1.NTP 2.SSH 3.Web 4.Certificate authority 5.Name server 6.DHCP 7.File servers 8.Authentication server 9.Proxy 10.Logging 11.Containers 12.VPN 13.Monitoring 14.Database 15.Print server 16.Mail server 17.Load balancer 18.Clustering |
| Given a scenario, automate and schedule jobs. | 1.cron 2.at 3.crontab 4.fg 5.bg 6.& 7.kill 8.Ctrl+c 9.Ctrl+z 10.nohup |
| Explain the use and operation of Linux devices. | 1.Types of devices
2.Monitoring and configuration tools
3.File locations
4.Hot pluggable devices
|
| Compare and contrast Linux graphical user interfaces. | 1.Servers
2.GUI
3.Remote desktop
4.Console redirection
5.Accessibility |
Security - 19% | |
| Given a scenario, apply or acquire the appropriate user and/or group permissions and ownership. | 1.File and directory permissions
2.Context-based permissions
3.Privilege escalation
4.User types
|
| Given a scenario, configure and implement appropriate access and authentication methods. | 1.PAM
2.SSH
3.TTYs
4.PTYs
6.VPN as a client
|
| Summarize security best practices in a Linux environment. | 1.Boot security
2.Additional authentication methods
3.Importance of disabling root login via SSH
5.Chroot jail services
9.Change default ports
11.Importance of enabling SSL/TLS
16.Restrict cron access |
| Given a scenario, implement logging services. | 1.Key file locations
2.Log management
3.lastb |
| Given a scenario, implement and configure Linux firewalls. | 1.Access control lists
2.Technologies
3.IP forwarding
4.Dynamic rule sets
5.Common application firewall configurations
|
| Given a scenario, backup, restore, and compress files. | 1.Archive and restore utilities
2.Compression
3.Backup types
4.Off-site/off-system storage
5.Integrity checks
|
Linux Troubleshooting and Diagnostics - 20% | |
| Given a scenario, analyze system properties and remediate accordingly. | 1.Network monitoring and configuration
2.Storage monitoring and configuration
3.CPU monitoring and configuration
4.Memory monitoring and configuration
5.Lost root password
|
| Given a scenario, analyze system processes in order to optimize performance. | 1.Process management
|
| Given a scenario, analyze and troubleshoot user issues. | 1.Permissions
2.Access
3.Authentication
4.File creation
5.Insufficient privileges for authorization
6.Environment and shell issues |
| Given a scenario, analyze and troubleshoot application and hardware issues. | 1.SELinux context violations 2.Storage
3.Firewall
4.Permission
5.Dependencies
6.Troubleshooting additional hardware issues
|
Automation and Scripting - 14% | |
| Given a scenario, deploy and execute basic BASH scripts. | 1.Shell environments and shell variables
2.#!/bin/bash
5.Extensions
7.File globbing
8.Redirection and piping
10.Metacharacters
13.Conditional statements
14.Escaping characters |
| Given a scenario, carry out version control using Git. | 1.Arguments
2.Files
|
| Summarize orchestration processes and concepts. | 1.Agent 2.Agentless 3.Procedures 4.Attributes 5.Infrastructure automation 6.Infrastructure as code 7.Inventory 8.Automated configuration management 9.Build automation |
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