Cover Page

CompTIA® Linux+
Practice Tests
Exam XK0-004
Second Edition

Wiley Logo

Steven Suehring


Wiley Logo













To Tim Krause

Acknowledgments

Thank you to the team that helped put this title together: Pete Gaughan, editorial manager; Kenyon Brown, the acquisitions editor; Kevin Ryan, technical editor; Tom Cirtin, the project editor; Amy Odum, production editor; copyeditor Tiffany Taylor; and the compositors at Aptara.

Thank you also to all of those individuals who support me throughout book-writing and project endeavors, including my family, Patti, Rob, and Jim at Partners, Kent and everyone at Soundworks, and my colleagues at UWSP.


About the Author

Steve Suehring is an assistant professor of computing and new media technologies at University of Wisconsin—Stevens Point. Prior to joining the faculty in 2015, Steve gained 20 years of field experience in a variety of technical engineering, system and network administration, and system architectural roles. Steve has written several books and has served as an editor for LinuxWorld magazine.

Introduction

This book is a companion volume to CompTIA Linux+ Study Guide: Exam XK0-004 (4th ed.). The book will help you prepare for the certification exams by testing your knowledge using questions derived directly from the exam objectives. There are 1,000 questions within this book, divided into chapters based on the objectives.

Each of the chapters will test your knowledge on a given exam objective along with its subobjectives. There is also a practice exam at the end covering all exam objectives. The questions are a mix of easy to difficult and will help you prepare for the types of knowledge needed to demonstrate that you can work with Linux systems.

To achieve maximum benefit, the book should be used with the corresponding certification study guide. You can also use the book to identify areas where additional study is needed.

Objective Map

The following table lists each of the five objective domains in the CompTIA Linux+ exam and the percentage of the exam of each domain. The subobjectives are also listed for each domain. Because each chapter in this book focuses on a specific domain, the mapping is easy: for Domain 1.0, refer to Chapter 1; for Domain 2.0, refer to Chapter 2, and so on.

Objective Domain Percentage of Exam Chapter
Domain 1.0 Hardware and System Configuration 21% 1
1.1 Explain Linux boot process concepts
1.2 Given a scenario, install, configure, and monitor kernel modules
1.3 Given a scenario, configure and verify network connection parameters
1.4 Given a scenario, manage storage in a Linux environment

1.5 Compare and contrast cloud and virtualization

concepts and technologies

1.6 Given a scenario, configure localization options
Domain 2.0 Systems Operation and Maintenance 26% 2

2.1 Given a scenario, conduct software installations,

configurations, updates, and removals

2.2 Given a scenario, manage users and groups
2.3 Given a scenario, create, modify, and redirect files
2.4 Given a scenario, manage services
2.5 Summarize and explain server roles
2.6 Given a scenario, automate and schedule jobs
2.7 Explain the use and operation of Linux devices
2.8 Compare and contrast Linux graphical user interfaces
Domain 3.0 Security 19% 3

3.1 Given a scenario, apply or acquire the appropriate

user and/or group permissions and ownership

3.2 Given a scenario, configure and implement appropriate

access and authentication methods

3.3 Summarize security best practices in a Linux environment
3.4 Given a scenario, implement logging services
3.5 Given a scenario, implement and configure Linux firewalls
3.6 Given a scenario, backup, restore, and compress files
Domain 4.0 Linux Troubleshooting and Diagnostics 20% 4
4.1 Given a scenario, analyze system properties and remediate accordingly

4.2 Given a scenario, analyze system processes

in order to optimize performance

4.3 Given a scenario, analyze and troubleshoot user issues

4.4 Given a scenario, analyze and troubleshoot

application and hardware issues

Domain 5.0 Automation and Scripting 14% 5
5.1 Given a scenario, deploy and execute basic Bash scripts
5.2 Given a scenario, carry out version control using Git
5.3 Summarize orchestration processes and concepts