CompTIA Linux+ XK0-004: Backup & Restore
CompTIA Linux+ XK0-004: Backup & Restore
- describe the different backup strategies for managing backup data sets
- use dd to create duplicates of disks or disk partitions
- use the tar command to perform a backup or restore operation
Discover tools and methods to backup and restore files, partitions, and disks in Linux, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Boot Process & Kernel
CompTIA Linux+ XK0-004: Boot Process & Kernel
- define the main directory where the modules reside for the Linux Kernel
- describe the command to list the parameters of the Linux Kernel
- describe the main commands for managing the Linux Kernel
- describe the boot process steps in sequence at a high level
- describe the directory where the grub configuration file resides
- describe the keyboard key that allows the ability to edit the GRUB configuration on boot
Explore how Linux boots and how to configure the boot process; and, how to use kernel modules and configure kernel options, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Bourne-again Shell & Scripting
CompTIA Linux+ XK0-004: Bourne-again Shell & Scripting
- Using and Configuring Bash
- Creating a Bash Script
Explore Bourne-again shell scripting and customization including how to configure login scripts for global and individual users, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Disk Partitions & File Systems
CompTIA Linux+ XK0-004: Disk Partitions & File Systems
- Compare the benefits and disadvantages of different file systems
- describe the difference between the MBR and GPT file systems
- describe the features of the MBR disk partition table scheme
- use system tools to format disk partitions
- use system tools to mount formatted partitions
Explain how disk partitions and file systems are created and used in Linux, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: File Access & Permissions
CompTIA Linux+ XK0-004: File Access & Permissions
- decipher the format of permissions descriptions for files and folders in Linux
- describe how file permissions work in conjunction with user and group access levels
- identify available methods to modify permissions to the correct levels for Owner, Group, and Other access
- identify the purpose of using Filesystem Access Control List commands in Linux
- recognize special cases where advanced permissions types may be used
Explore filesystem permissons and ownership commands for managing Linux filesystems including the use of Filesystem Access Control Lists (FACLs), as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Git Version Control
CompTIA Linux+ XK0-004: Git Version Control
- describe the purpose and importance of the git command
- identify the requirements to execute git commands successfully
- use the git command to track and merge changes to a project
Discover version control using Git to create and track changes to a project, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Graphical User Interfaces
CompTIA Linux+ XK0-004: Graphical User Interfaces
- define the default X client GUI installed for SUSE
- describe the component that communicates with the X server to manage the other components
- describe the default X client for Red Hat and Centos distributions
Discover the X windowing system and the Gnome and KDE graphical user interfaces, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Installing & Managing Software
CompTIA Linux+ XK0-004: Installing & Managing Software
- add repositories and their keys for retrieving software from additional repositories
- configure repository sources for apt
- find the name of packages in repositories that can be installed using apt
- identify and configure repositories for yum or dnf
- update installed packages from repositories using yum
- work with yum to get additional information about a package in a repository
Discover how to install, remove, update, and manage software using software package managers apt, yum, and dnf, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Installing CentOS
CompTIA Linux+ XK0-004: Installing CentOS
- describe the installation requirements for CentOS
- perform an installation of the CentOS
- prepare for a CentOS installation
- configure CentOS disk partitioning
- secure the initial installation of CentOS
Explore the Community Enterprise Operating System by acquiring and doing a full installation of CentOS, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Installing Software from Source Code
CompTIA Linux+ XK0-004: Installing Software from Source Code
Discover how to build and install software from source code, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Installing Ubuntu
CompTIA Linux+ XK0-004: Installing Ubuntu
- identify different tools and methods for keeping an Ubuntu installation patched
- perform an Ubuntu Linux installation
- prepare for an Ubuntu Linux installation
Discover the ease of installing Ubuntu and explore the installation website, media, and installer, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Introduction to Linux & the Command Line
CompTIA Linux+ XK0-004: Introduction to Linux & the Command Line
- describe Linux and the skills required for the CompTIA Certification exams
- discern the scope of variation in Linux distributions
- identify aspects of the history that led to the development of the Linux operating system
- identify the benefits and limitations of open source software that is used in Linux distributions
- recall the purpose of common Linux commands
- recognize the ramifications of running commands in different Linux command line shells
- use the correct conventions when executing commands in a Linux shell
- change credentials by using the su command
- identify how to grant user access to the use of the sudo command
- recognize the difference between the su, sudo, and sudoedit command
Discover Linux, its origins, distributions, and command line interface for managing a Linux system, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Locating & Manipulating Files
CompTIA Linux+ XK0-004: Locating & Manipulating Files
- display the contents of text files using commands such as cat, more, less, head, and tail
- Identify the benefits of using commands like head and tail to display text files
- use the ls command with different options to achieve specific directory listings
- find files using common Linux commands such as find, locate, and which
- Recognize the differences between different search commands in Linux
Discover how to find and search for files in the filesystem, how to list files, and how to view the contents of files, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Logical Volumes & Filesystem Hierarchy
CompTIA Linux+ XK0-004: Logical Volumes & Filesystem Hierarchy
- Identify the different components used by Logical Volume Manager
- use commands to change the usable size of logical volumes in LVM
- use commands to create a logical volume in the Logical Volume Manager
- describe the purpose of the Filesystem Hierarchy Standard
- explain the general usage of FHS defined directories
- recognize the purpose of common FHS standardized directories
Explain disk and filesystem management with the use of logical volumes and the Filesystem Hierarchy Standard, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Managing & Configuring Hardware
CompTIA Linux+ XK0-004: Managing & Configuring Hardware
- describe how Linux finds, detects, and instantiates hardware, how to change hardware names with udev, and use commands like lspci, lsusb, and lsdev to list, troubleshoot, and detect hardware
- use the Common Unix Printing System (CUPS) to install and configure a printer and use command line utilities to print
Discover how Linux finds and configures hardware, how hardware can be manually detected, and how to configure and use printers, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Managing Services
CompTIA Linux+ XK0-004: Managing Services
- describe systemd and use systemctl to configure and support services
- manage service scripts and runlevels used by SysVInit and Upstart
Explore the service managers like systemd, SysVinit, and Upstart used to manage services and system initialization, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Managing Users & Groups
CompTIA Linux+ XK0-004: Managing Users & Groups
- identify the purpose behind common commands used to modify a user account from the command line in Linux
- identify the purpose behind common options when creating a user account from the command line in Linux
- identify the purpose behind common options when deleting a user account from the command line in Linux
- identify the purpose behind common commands related to group management from the command line in Linux
- identify the purpose behind common options related to group management from the command line in Linux
Explore creating, editing, and deleting user accounts and groups as well as using groups to set up shared access between users, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Network Firewall & Traffic Filtering
CompTIA Linux+ XK0-004: Network Firewall & Traffic Filtering
- Using firewalld to Implement a Host-based Firewall
- Using iptables to Implement a Host-based Firewall
Discover how to configure and manage a host-based firewall using firewalld or iptables, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Scheduling Tasks
CompTIA Linux+ XK0-004: Scheduling Tasks
- configure cron to run a command repetitively at a given time
- use the at command to schedule a single system task to run at a preconfigured time and day
- use the cron service to configure scheduled tasks to run at preconfigured times and dates
- use anacron to run scheduled tasks that cron missed
- work with cron as a regular user to schedule tasks
Discover at, cron, and anacron for scheduling future and repetitive tasks, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Searching & Manipulating File Contents
CompTIA Linux+ XK0-004: Searching & Manipulating File Contents
- recognize how to get help and information for creating regular expression statements
- use the grep command to find files and lines matching a fixed text string
- use the grep command to find matching lines using a regular expression
- work with the common regular expression wildcard characters
- manipulate the contents of a file by removing lines
- use the cut command to retrieve a specific column of data from a text file
- use the sort command to sort data in a text file
Discover command lines tools to parse, filter, sort, and edit the contents or output of files and commands, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Security Best Practices
CompTIA Linux+ XK0-004: Security Best Practices
- Describing Linux Security
- Hardening SSH Clients and Servers
Explore security concepts, best practices, and describe how to harden a system service like SSH for clients and servers, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: SELinux & AppArmor
CompTIA Linux+ XK0-004: SELinux & AppArmor
- describe the benefits of using Security Enhanced Linux (SELinux)
- protect the system from leapfrog attacks using SELinux contexts and policies
- use SELinux commands to harden a Linux system
- describe the benefits of AppArmor
- identify the benefits of using AppArmor to protect Linux systems
- use AppArmor commands to harden a Linux system
Explore SELinux and AppArmor and how they can be used to protect systems and the apps running on those systems, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: TCP/IP & Networking
CompTIA Linux+ XK0-004: TCP/IP & Networking
- describe general networking related to IPv4 and IPv6 TCP and UDP IP communications and common ports and services and how they process data over a network
- configure network IP Addresses, routing, DNS, and gateways for network interface devices
Explore general networking concepts like TCP/UDP, ports, IP communications; and discover how to configure network interfaces in Linux, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Troubleshooting Network Connections
CompTIA Linux+ XK0-004: Troubleshooting Network Connections
Discover tools and troubleshooting techniques to diagnose and correct common network connection issues, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Troubleshooting Services
CompTIA Linux+ XK0-004: Troubleshooting Services
- describe the process life cycle and use tools like ps and top to view processes, lsof to see locked files, and systemd-analyze blame to check processes that hold up the boot process
- troubleshoot processes that use too many resources using tools like nice and find and terminate processes that are causing problems using kill and killall
Discover how processes work, how to determine when they may be causing problems, and how to troubleshoot, fix, or terminate those processes, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
CompTIA Linux+ XK0-004: Using vi/vim to Edit Files
CompTIA Linux+ XK0-004: Using vi/vim to Edit Files
- explain the behavior of vi command modes
- identify features available in the vim text editor
- perform editing on a document using vi
- navigate vi using alternative keystrokes
- perform copy and paste in the vi editor
Discover the text editing features, modes, and key sequences necessary to use the vi/vim editor, as you prepare for the XK0-004: CompTIA Linux+ certification exam.
TestPrep XK0-004 CompTIA Linux+
To test your knowledge on the skills and competencies being measured by the vendor certification exam. TestPrep can be taken in either Study or Certification mode. Study mode is designed to maximize learning by not only testing your knowledge of the material, but also by providing additional information on the topics presented. Certification mode is designed to test your knowledge of the material within a structured testing environment, providing valuable feedback at the end of the test.
Individuals seeking practice in a structured testing environment, covering the skills and competencies being measured by the vendor certification exam.