CompTIA Linux+ XK0-005 Cert Guide
(Sprache: Englisch)
Learn, prepare, and practice for CompTIA Linux+ XK0-005 exam success with this Cert Guide from Pearson IT Certification, a leader in IT Certification learning.
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Learn, prepare, and practice for CompTIA Linux+ XK0-005 exam success with this Cert Guide from Pearson IT Certification, a leader in IT Certification learning. CompTIA� Linux+ XK0-005 Cert Guide from Pearson IT Certification helps you prepare to succeed on the CompTIA� Linux+ exam by directly addressing the exam's objectives as stated by CompTIA�. Leading instructor and expert Ross Brunson shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills.
This complete study package includes
- Complete coverage of the exam objectives and a test-preparation routine designed to help you pass the exams
- Do I Know This Already? quizzes, which allow you to decide how much time you need to spend on each section
- Chapter-ending Key Topic tables, which help you drill on key concepts you must know thoroughly
- The powerful Pearson Test Prep Practice Test software, complete with hundreds of well-reviewed, exam-realistic questions, customization options, and detailed performance reports
- An online, interactive Flash Cards application to help you drill on Key Terms by chapter
- A final preparation chapter, which guides you through tools and resources to help you craft your review and test-taking strategies
- Study plan suggestions and templates to help you organize and optimize your study time
Well regarded for its level of detail, study plans, assessment features, and challenging review questions and exercises, this study guide helps you master the concepts and techniques that ensure your exam success.
This study guide helps you master all the topics on the Linux+ XK0-005 exam, deepening your knowledge of:
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- System Management: Linux fundamentals; file management; storage configuration and management; networking tools; configuration files; software installation; software configuration
- Security: Security best practices; firewall implementation and configuration; remote connectivity configuration and execution; access controls
- Scripting, Containers, and Automation: Shell script creation; container operations; version control
- Troubleshooting: Storage issues; network resource issues; CPU and memory issues; user access and file permissions
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Inhaltsverzeichnis zu „CompTIA Linux+ XK0-005 Cert Guide “
Introduction xliii Part I: System Management (Obj. 1.1 - 1.7)
Chapter 1 Understanding Linux Fundamentals 3
Do I Know This Already? Quiz 3
Foundation Topics 6
Filesystem Hierarchy Standard 6
Basic Boot Process 8
Boot Loaders and Files 14
When Kernels Panic 22
Device Types in /dev 23
Installing Software from Source 24
Storage Concepts 28
Listing Your Hardware Info 35
Summary 38
Exam Preparation Tasks 39
Review All Key Topics 39
Define Key Terms 40
Review Questions 40
Chapter 2 Managing Files and Directories 43
Do I Know This Already? Quiz 43
Foundation Topics 46
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File and Directory Operations 46
File Metadata and File Types 57
Soft and Hard Links 60
File Compression, Archiving, and Backup 63
Copying Objects Between Systems 78
File Editing 82
Feeling a Bit (awk)ward 92
The printf Function 94
Summary 95
Exam Preparation Tasks 96
Review All Key Topics 96
Define Key Terms 97
Review Questions 97
Chapter 3 Configuring and Managing Storage 101
Do I Know This Already? Quiz 101
Foundation Topics 104
Determining Storage Hardware 104
Performing Disk Partitioning 108
Inspecting and Managing Software RAID 114
Using Logical Volume Manager (LVM) 114
Mounting Local and Remote Devices 118
Monitoring Storage Space and Disk Usage 123
Filesystem Management 126
Storage Area Networks/Network-Attached Storage 131
Summary 134
Exam Preparation Tasks 135
Review All Key Topics 135
Define Key Terms 136
Review Questions 136
Chapter 4 Managing Processes and Services 139
Do I Know This Already? Quiz 139
Foundation Topics 142
Managing Processes 142
systemd 159
Scheduling Services 170
Summary 180
Exam Preparation Tasks 181
Review All Key Topics 181
Define Key Terms 182
Review Questions 182
Chapter 5 Using Network Tools and Configuration Files 185
Do I Know This Already? Quiz 186
Foundation Topics 188
Interface Management 188
Name Resolution 199
Network Monitoring 207
Remote Networking Tools 217
Summary 221
Exam Preparation Tasks 222
Review All Key Topics 222
Define Key Terms 223
Review Questions 223
Chapter 6 Building and Installing Software 225
Do I Know This Already? Quiz 226
Foundation Topics 228
Package Management 228
Sandboxed Applications 268
System Updates 270
Summary 275
Exam Preparation Tasks 276
Review All Key Topics 276
Define Key Terms 277
Chapter 7 Managing Software Configurations 281
Do I Know This Already? Quiz 281
Foundation Topics 283
Updating Configuration Files 283
Configuring Kernel Options 289
Configuring Common System Services 300
Representing Locales 304
Summary 315
Exam Preparation Tasks 316
Review All Key Topics 316
Define Key Terms 317
Review Questions 317
Part II: Security (Obj. 2.1 - 2.5)
Chapter 8 Understanding Linux Security Best Practices 321
Do I Know This Already? Quiz 321
Foundation Topics 323
Public Key Infrastructure 323
Certificate Use Cases 325
Authentication 326
Linux Hardening 333
Summary 348
Exam Preparation Tasks 349
Review All Key Topics 349
Define Key Terms 350
Review Questions 350
Chapter 9 Implementing Identity Management 353
Do I Know This Already? Quiz 353
Foundation Topics 355
Account Creation and Deletion 355
Summary 374
Exam Preparation Tasks 375
Review All Key Topics 375
Define Key Terms 375
Review Questions 376
Chapter 10 Implementing and Configuring Firewalls 379
Do I Know This Already? Quiz 379
Foundation Topics 382
Common Firewall Technologies 382
Understanding iptables 385
Additional Firewall Technologies 398
Summary 400
Exam Preparation Tasks 401
Review All Key Topics 401
Define Key Terms 401
Review Questions 402
Chapter 11 Using Remote Connectivity for System Management 405
Do I Know This Already? Quiz 405
Foundation Topics 408
SSH (Secure Shell) 408
Executing Commands as Another User 416
Summary 421
Exam Preparation Tasks 422
Review All Key Topics 422
Define Key Terms 423
Review Questions 423
Chapter 12 Understanding and Applying Access Controls 427
Do I Know This Already? Quiz 427
Foundation Topics 429
File Permissions 429
File and Directory Ownership 434
Understanding and Using umask 437
Permission Granularity Issues 437
Finding Files by Permission 444
Access Control Lists 445
Context-Based Access 448
Command-Line Utilities 457
Summary 457
Exam Preparation Tasks 458
Review All Key Topics 458
Define Key Terms 458
Review Questions 459
Part III: Scripting, Containers and Automation (Obj. 3.1 - 3.5)
Chapter 13 Automating Tasks via Shell Scripting 463
Do I Know This Already? Quiz 463
Foundation Topics 466
Shell Script Elements 466
Environment Variables and Settings 469
Working with Input/Output Streams 475
Shell Script Elements 487
Summary 517
Exam Preparation Tasks 518
Review All Key Topics 518
Define Key Terms 519
Review Questions 519
Chapter 14 Performing Basic Container Operations 523
Do I Know This Already? Quiz 523
Foundation Topics 525
Container Management 525
Container Image Operations 533
Summary 534
Exam Preparation Tasks 535
Review All Key Topics 535
Define Key Terms 535
Review Questions 536
Chapter 15 Performing Basic Version Control Using Git 539
Do I Know This Already? Quiz 539
Foundation Topics 541
Version Control Concepts 541
Using Git for Version Control 546
Summary 568
Exam Preparation Tasks 569
Review All Key Topics 569
Define Key Terms 569
Review Questions 570
Chapter 16 Understanding Infrastructure as Code 573
Do I Know This Already? Quiz 573
Foundation Topics 576
File Formats 576
Infrastructure as Code Concepts 579
Continuous Integration/Continuous Deployment 588
Advanced Git Topics 590
Summary 591
Exam Preparation Tasks 592
Review All Key Topics 592
Define Key Terms 593
Review Questions 593
Chapter 17 Understanding Containers, Cloud, and Orchestration 597
Do I Know This Already? Quiz 597
Foundation Topics 600
Kubernetes Benefits and Application Use Cases 600
Single-Node Multicontainer Use Cases 604
Container Persistent Storage 605
Container Networks 608
Service Mesh 611
Bootstrapping 612
Container Registries 613
Summary 614
Exam Preparation Tasks 615
Review All Key Topics 615
Define Key Terms 616
Review Questions 616
Part IV: Troubleshooting (Obj. 4.1 - 4.5)
Chapter 18 Analyzing and Troubleshooting Storage Issues 619
Do I Know This Already? Quiz 619
Foundation Topics 623
High Latency Issues 623
Low Throughput Issues 627
Input/Output Operations per Second Scenarios 631
Capacity Issues 633
Filesystem Issues 638
I/O Scheduler Issues 643
Device Issues 647
LVM Issues 656
Mount Option Issues 659
Exam Preparation Tasks 663
Review All Key Topics 663
Define Key Terms 664
Review Questions 664
Chapter 19 Analyzing and Troubleshooting Network Resource Issues 667
Do I Know This Already? Quiz 667
Foundation Topics 670
Network Configuration Issues 670
Firewall Issues 674
Interface Errors 679
Bandwidth Limitations 686
Name Resolution Issues 687
Testing Remote Systems 689
Summary 696
Exam Preparation Tasks 697
Review All Key Topics 697
Define Key Terms 698
Review Questions 698
Chapter 20 Analyzing and Troubleshooting CPU and Memory Issues 701
Do I Know This Already? Quiz 701
Foundation Topics 704
Runaway and Zombie Processes 704
High CPU Utilization/Load Average/Run Queues 707
CPU Times and CPU Process Priorities 711
Memory Exhaustion and Out of Memory 713
Swapping 717
Hardware 719
Summary 720
Exam Preparation Tasks 721
Review All Key Topics 721
Define Key Terms 721
Review Questions 721
Chapter 21 Analyzing and Troubleshooting User and File Permissions 725
Do I Know This Already? Quiz 725
Foundation Topics 728
User Login Issues 728
User File Access Issues 731
Password Issues 735
Privilege Elevation Issues 736
Quota Issues 736
Summary 738
Exam Preparation Tasks 739
Review All Key Topics 739
Define Key Terms 739
Review Questions 739
Chapter 22 Analyzing and Troubleshooting Common Problems Using Systemd 743
Do I Know This Already? Quiz 743
Foundation Topics 745
Unit Files 745
Common Problems 756
Summary 761
Exam Preparation Tasks 762
Review All Key Topics 762
Define Key Terms 762
Review Questions 763
Chapter 23 Final Preparation 765
Exam Information 765
Getting Ready 767
Tools for Final Preparation 768
Suggested Plan for Final Review/Study 772
Summary 772
Appendix A Answers to the Do I Know This Already? Quizzes and Review Questions 773
Glossary 790
Online Elements:
Appendix B Study Planner
9780137866885, TOC, 10/3/23
File and Directory Operations 46
File Metadata and File Types 57
Soft and Hard Links 60
File Compression, Archiving, and Backup 63
Copying Objects Between Systems 78
File Editing 82
Feeling a Bit (awk)ward 92
The printf Function 94
Summary 95
Exam Preparation Tasks 96
Review All Key Topics 96
Define Key Terms 97
Review Questions 97
Chapter 3 Configuring and Managing Storage 101
Do I Know This Already? Quiz 101
Foundation Topics 104
Determining Storage Hardware 104
Performing Disk Partitioning 108
Inspecting and Managing Software RAID 114
Using Logical Volume Manager (LVM) 114
Mounting Local and Remote Devices 118
Monitoring Storage Space and Disk Usage 123
Filesystem Management 126
Storage Area Networks/Network-Attached Storage 131
Summary 134
Exam Preparation Tasks 135
Review All Key Topics 135
Define Key Terms 136
Review Questions 136
Chapter 4 Managing Processes and Services 139
Do I Know This Already? Quiz 139
Foundation Topics 142
Managing Processes 142
systemd 159
Scheduling Services 170
Summary 180
Exam Preparation Tasks 181
Review All Key Topics 181
Define Key Terms 182
Review Questions 182
Chapter 5 Using Network Tools and Configuration Files 185
Do I Know This Already? Quiz 186
Foundation Topics 188
Interface Management 188
Name Resolution 199
Network Monitoring 207
Remote Networking Tools 217
Summary 221
Exam Preparation Tasks 222
Review All Key Topics 222
Define Key Terms 223
Review Questions 223
Chapter 6 Building and Installing Software 225
Do I Know This Already? Quiz 226
Foundation Topics 228
Package Management 228
Sandboxed Applications 268
System Updates 270
Summary 275
Exam Preparation Tasks 276
Review All Key Topics 276
Define Key Terms 277
Chapter 7 Managing Software Configurations 281
Do I Know This Already? Quiz 281
Foundation Topics 283
Updating Configuration Files 283
Configuring Kernel Options 289
Configuring Common System Services 300
Representing Locales 304
Summary 315
Exam Preparation Tasks 316
Review All Key Topics 316
Define Key Terms 317
Review Questions 317
Part II: Security (Obj. 2.1 - 2.5)
Chapter 8 Understanding Linux Security Best Practices 321
Do I Know This Already? Quiz 321
Foundation Topics 323
Public Key Infrastructure 323
Certificate Use Cases 325
Authentication 326
Linux Hardening 333
Summary 348
Exam Preparation Tasks 349
Review All Key Topics 349
Define Key Terms 350
Review Questions 350
Chapter 9 Implementing Identity Management 353
Do I Know This Already? Quiz 353
Foundation Topics 355
Account Creation and Deletion 355
Summary 374
Exam Preparation Tasks 375
Review All Key Topics 375
Define Key Terms 375
Review Questions 376
Chapter 10 Implementing and Configuring Firewalls 379
Do I Know This Already? Quiz 379
Foundation Topics 382
Common Firewall Technologies 382
Understanding iptables 385
Additional Firewall Technologies 398
Summary 400
Exam Preparation Tasks 401
Review All Key Topics 401
Define Key Terms 401
Review Questions 402
Chapter 11 Using Remote Connectivity for System Management 405
Do I Know This Already? Quiz 405
Foundation Topics 408
SSH (Secure Shell) 408
Executing Commands as Another User 416
Summary 421
Exam Preparation Tasks 422
Review All Key Topics 422
Define Key Terms 423
Review Questions 423
Chapter 12 Understanding and Applying Access Controls 427
Do I Know This Already? Quiz 427
Foundation Topics 429
File Permissions 429
File and Directory Ownership 434
Understanding and Using umask 437
Permission Granularity Issues 437
Finding Files by Permission 444
Access Control Lists 445
Context-Based Access 448
Command-Line Utilities 457
Summary 457
Exam Preparation Tasks 458
Review All Key Topics 458
Define Key Terms 458
Review Questions 459
Part III: Scripting, Containers and Automation (Obj. 3.1 - 3.5)
Chapter 13 Automating Tasks via Shell Scripting 463
Do I Know This Already? Quiz 463
Foundation Topics 466
Shell Script Elements 466
Environment Variables and Settings 469
Working with Input/Output Streams 475
Shell Script Elements 487
Summary 517
Exam Preparation Tasks 518
Review All Key Topics 518
Define Key Terms 519
Review Questions 519
Chapter 14 Performing Basic Container Operations 523
Do I Know This Already? Quiz 523
Foundation Topics 525
Container Management 525
Container Image Operations 533
Summary 534
Exam Preparation Tasks 535
Review All Key Topics 535
Define Key Terms 535
Review Questions 536
Chapter 15 Performing Basic Version Control Using Git 539
Do I Know This Already? Quiz 539
Foundation Topics 541
Version Control Concepts 541
Using Git for Version Control 546
Summary 568
Exam Preparation Tasks 569
Review All Key Topics 569
Define Key Terms 569
Review Questions 570
Chapter 16 Understanding Infrastructure as Code 573
Do I Know This Already? Quiz 573
Foundation Topics 576
File Formats 576
Infrastructure as Code Concepts 579
Continuous Integration/Continuous Deployment 588
Advanced Git Topics 590
Summary 591
Exam Preparation Tasks 592
Review All Key Topics 592
Define Key Terms 593
Review Questions 593
Chapter 17 Understanding Containers, Cloud, and Orchestration 597
Do I Know This Already? Quiz 597
Foundation Topics 600
Kubernetes Benefits and Application Use Cases 600
Single-Node Multicontainer Use Cases 604
Container Persistent Storage 605
Container Networks 608
Service Mesh 611
Bootstrapping 612
Container Registries 613
Summary 614
Exam Preparation Tasks 615
Review All Key Topics 615
Define Key Terms 616
Review Questions 616
Part IV: Troubleshooting (Obj. 4.1 - 4.5)
Chapter 18 Analyzing and Troubleshooting Storage Issues 619
Do I Know This Already? Quiz 619
Foundation Topics 623
High Latency Issues 623
Low Throughput Issues 627
Input/Output Operations per Second Scenarios 631
Capacity Issues 633
Filesystem Issues 638
I/O Scheduler Issues 643
Device Issues 647
LVM Issues 656
Mount Option Issues 659
Exam Preparation Tasks 663
Review All Key Topics 663
Define Key Terms 664
Review Questions 664
Chapter 19 Analyzing and Troubleshooting Network Resource Issues 667
Do I Know This Already? Quiz 667
Foundation Topics 670
Network Configuration Issues 670
Firewall Issues 674
Interface Errors 679
Bandwidth Limitations 686
Name Resolution Issues 687
Testing Remote Systems 689
Summary 696
Exam Preparation Tasks 697
Review All Key Topics 697
Define Key Terms 698
Review Questions 698
Chapter 20 Analyzing and Troubleshooting CPU and Memory Issues 701
Do I Know This Already? Quiz 701
Foundation Topics 704
Runaway and Zombie Processes 704
High CPU Utilization/Load Average/Run Queues 707
CPU Times and CPU Process Priorities 711
Memory Exhaustion and Out of Memory 713
Swapping 717
Hardware 719
Summary 720
Exam Preparation Tasks 721
Review All Key Topics 721
Define Key Terms 721
Review Questions 721
Chapter 21 Analyzing and Troubleshooting User and File Permissions 725
Do I Know This Already? Quiz 725
Foundation Topics 728
User Login Issues 728
User File Access Issues 731
Password Issues 735
Privilege Elevation Issues 736
Quota Issues 736
Summary 738
Exam Preparation Tasks 739
Review All Key Topics 739
Define Key Terms 739
Review Questions 739
Chapter 22 Analyzing and Troubleshooting Common Problems Using Systemd 743
Do I Know This Already? Quiz 743
Foundation Topics 745
Unit Files 745
Common Problems 756
Summary 761
Exam Preparation Tasks 762
Review All Key Topics 762
Define Key Terms 762
Review Questions 763
Chapter 23 Final Preparation 765
Exam Information 765
Getting Ready 767
Tools for Final Preparation 768
Suggested Plan for Final Review/Study 772
Summary 772
Appendix A Answers to the Do I Know This Already? Quizzes and Review Questions 773
Glossary 790
Online Elements:
Appendix B Study Planner
9780137866885, TOC, 10/3/23
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Autoren-Porträt von Ross Brunson
Ross Brunson has more than 30 years of experience as a Linux and open-source trainer, training manager, and certification architect, and is the author of the nowclassic LPIC-1 Exam Cram 2, several iterations of the CompTIA Linux+ Cert Guide, and dozens of technical courses for major organizations. Ross is currently the Education Architect at Grafana Labs (www.grafana.com), where he focuses on building a learning framework and training offerings that help employees and customers make the best use of Grafana to observe, troubleshoot, and maintain their environments.
Previously, Ross was a Senior Technical Training Engineer for NGINX, where he completely redid the Fundamentals learning track, authored a number of Getting Started guides, and taught a number of customer engagements to help new NGINX customers take full advantage of the platform.
Before NGINX, Ross enjoyed a few years at Linux Academy/A Cloud Guru where as a Senior Training Architect, he authored the SUSE Certified Administrator and Engineer courses, did the Red Hat Certified System Administrator Labs, created many additional courses on systemd, VIM and the screen command, and wrote and reviewed way too many exam questions.
Ross has also put in a tour of duty as the Certification Architect at SUSE, where he helped redesign and modernize the entire certification program. He has also spent five years as the Director of Member Services for the Linux Professional Institute, where he contributed to placing several LPI courses into the Cisco Networking Academy, conducted dozens of train-the-trainer sessions, and provided sales enablement support for the worldwide Master Affiliate network, spanning more than 100 countries and nearly a million certified professionals.
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Ross holds a number of key IT certifications and is author of several successful technical books and dozens of technical courses for major organizations (including the first U.S. LPI Certification Bootcamps). He is skilled at both contributing to and building community around IT products.
Ross lives in Paradise Valley, Montana, with his family and enjoys traveling far and wide, participating in hiking, winter sports, photography, and playing the drums with great vigor (although not everyone around him appreciates it).
Ross holds a number of key IT certifications and is author of several successful technical books and dozens of technical courses for major organizations (including the first U.S. LPI Certification Bootcamps). He is skilled at both contributing to and building community around IT products.
Ross lives in Paradise Valley, Montana, with his family and enjoys traveling far and wide, participating in hiking, winter sports, photography, and playing the drums with great vigor (although not everyone around him appreciates it).
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Bibliographische Angaben
- Autor: Ross Brunson
- 2024, LIII, 841 Seiten, Maße: 19,7 x 22,7 cm, Kartoniert (TB), Englisch
- Verlag: Pearson
- ISBN-10: 0137866887
- ISBN-13: 9780137866885
- Erscheinungsdatum: 31.03.2024
Sprache:
Englisch
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