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10 9 8 7 6 5 4 3 2 1
To Tim Krause
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.
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.
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.
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 |