William Rothwell

Pearson Practice Test (eBook, ePUB)

• Format: ePub

Produktbeschreibung

Prepare for CompTIA Linux+ XK0-005 exam success with this Exam Cram from Pearson IT Certification, a leader in IT certification.

This is the eBook edition of the CompTIA Linux+ XK0-005 Exam Cram. This eBook does not include access to the Pearson Test Prep practice exams that comes with the print edition.

CompTIA Linux+ XK0-005 Exam Cram is an all-inclusive study guide designed to help you pass the updated version of the CompTIA Linux+ exam. Prepare for test day success with complete coverage of exam objectives and topics, plus hundreds of realistic practice questions. Extensive prep tools include quizzes, Exam Alerts, and our essential last-minute review Cram Sheet.

Covers the critical information needed to score higher on your Linux+ XK0-005 exam!

• Manage files and directories
• Configure and manage storage
• Manage software configurations
• Implement identity management
• Implement and configure firewalls
• Create simple shell scripts to automate common tasks
• Perform basic container operations
• Analyze and troubleshoot storage issues and network resource issues

---

Dieser Download kann aus rechtlichen Gründen nur mit Rechnungsadresse in A, B, BG, CY, CZ, D, DK, EW, E, FIN, F, GR, HR, H, IRL, I, LT, L, LR, M, NL, PL, P, R, S, SLO, SK ausgeliefert werden.

Produktdetails

• Verlag: Pearson ITP
• Seitenzahl: 496
• Altersempfehlung: ab 18 Jahre
• Erscheinungstermin: 20. September 2022
• Englisch
• ISBN-13: 9780137898497
• Artikelnr.: 66389753

Autorenporträt

At the impressionable age of 14, William "Bo" Rothwell crossed paths with a TRS-80 Micro Computer System (affectionately known as a "Trash 80"). Soon after the adults responsible for Bo made the mistake of leaving him alone with the TSR-80, he dismantled it and held his first computer class, showing his friends what made this "computer thing" work.

Since that experience, Bo's passion for understanding how computers work and sharing this knowledge with others has resulted in a rewarding career in IT training. His experience includes Linux, Unix, IT security, DevOps, cloud technologies, and programming languages such as Perl, Python, Tcl, and BASH. He is the founder and lead instructor of One Course Source, an IT training organization.

Inhaltsangabe

    Introduction. . . . . . . . . . . . xxiv
 
Part I: System Management
CHAPTER 1: Linux Fundamentals. . . . . . . . . . . 1
    Filesystem Hierarchy Standard (FHS).. . . . . . . 1
    Basic Boot Process.. . . . . . . . . . 3
    Kernel Panic. . . . . . . . . . . 10
    Device Types in /dev.. . . . . . . . . 10
    Basic Package Compilation from Source.. . . . . . 13
    ./configure.. . . . . . . . . . 13
    make.. . . . . . . . . . . 15
    make install.. . . . . . . . . . 16
    Storage Concepts.. . . . . . . . . . 16
    Listing Hardware Information.. . . . . . . . 22
 
CHAPTER 2: Manage Files and Directories.. . . . . . . . . 27
    File Editing.. . . . . . . . . . . 27
    File Compression, Archiving, and Backup. . . . . . 36
    File Metadata.. . . . . . . . . . . 41
    Soft and Hard Links.. . . . . . . . . 43
    Copying Files Between Systems.. . . . . . . 46
    File and Directory Operations.. . . . . . . . 49
 
CHAPTER 3: Configure and Manage Storage Using the Appropriate Tools.. . .
57
    Disk Partitioning.. . . . . . . . . . 57
    Mounting Local and Remote Devices.. . . . . . 61
    Filesystem Management. . . . . . . . . 66
    Monitoring Storage Space and Disk Usage. . . . . . 70
    Creating and Modifying Volumes Using Logical Volume Manager (LVM).. . .
. . . . . . . 71
    Inspecting RAID Implementations.. . . . . . . 75
    Storage Area Network (SAN)/Network-Attached Storage (NAS). . 78
    Storage Hardware.. . . . . . . . . . 82
 
CHAPTER 4: Configure and Use the Appropriate Processes and Services.. . .
85
    System Services. . . . . . . . . . 85
    Scheduling Services. . . . . . . . . . 90
    Process Management. . . . . . . . . 97
 
CHAPTER 5: Use the Appropriate Networking Tools or Configuration Files. . .
113
    Interface Management.. . . . . . . . . 113
    Name Resolution.. . . . . . . . . . 122
    Network Monitoring.. . . . . . . . . 127
    Remote Networking Tools.. . . . . . . . 132
 
CHAPTER 6: Build and Install Software. . . . . . . . . 139
    Package Management.. . . . . . . . . 139
    Sandboxed Applications.. . . . . . . . . 149
    System Updates.. . . . . . . . . . 150
 
Part II: Security
CHAPTER 7: Manage Software Configurations.. . . . . . . . 155
    Updating Configuration Files.. . . . . . . . 155
    Configure Kernel Options.. . . . . . . . 158
    Configure Common System Services.. . . . . . . 165
    Localization.. . . . . . . . . . . 172
 
CHAPTER 8: Security Best Practices in a Linux Environment.. . . . . 177
    Managing Public Key Infrastructure (PKI) Certificates.. . . 177
    Certificate Use Cases. . . . . . . . . 181
    Authentication.. . . . . . . . . . 181
    Linux Hardening.. . . . . . . . . . 188
 
CHAPTER 9: Implement Identity Management. . . . . . . . 201
    Account Creation and Deletion. . . . . . . . 201
    .bashrc. . . . . . . . . . . 212
    Account Management.. . . . . . . . . 212
 
CHAPTER 10: Implement and Configure Firewalls.. . . . . . . . 219
    Firewall Use Cases.. . . . . . . . . . 219
    Common Firewall Technologies.. . . . . . . 221
    Key Firewall Features.. . . . . . . . . 223
 
CHAPTER 11: Configure and Execute Remote Connectivity for System Management
.. 227
    SSH.. . . . . . . . . . . . 227
    Executing Commands as Another User.. . . . . . 235
 
CHAPTER 12: Apply the Appropriate Access Controls. . . . . . . 241
    File Permissions.. . . . . . . . . . 241
    Security-Enhanced Linux (SELinux).. . . . . . . 243
    AppArmor.. . . . . . . . . . . 247
    Command-Line Utilities.. . . . . . . . . 250
 
Part III: Scripting, Containers, and Automation
CHAPTER 13: Create Simple Shell Scripts to Automate Common Tasks. . . .
265
    Shell Script Elements.. . . . . . . . . 265
    Common Script Utilities.. . . . . . . . . 286
    Environment Variables. . . . . . . . . 298
    Relative and Absolute Paths.. . . . . . . . 302
 
CHAPTER 14: Perform Basic Container Operations. . . . . . . 305
    Container Management.. . . . . . . . . 305
    Container Image Operations.. . . . . . . . 312
 
CHAPTER 15: Perform Basic Version Control Using Git.. . . . . . . 317
    Introduction to Version Control and Git.. . . . . . 317
    clone.. . . . . . . . . . . . 321
    push.. . . . . . . . . . . . 323
    pull.. . . . . . . . . . . . 324
    commit.. . . . . . . . . . . . 324
    add.. . . . . . . . . . . . 325
    branch/checkout.. . . . . . . . . . 325
    tag.. . . . . . . . . . . . 329
    gitignore.. . . . . . . . . . . 330
 
CHAPTER 16: Common Infrastructure as Code Technologies.. . . . . 333
    File Formats. . . . . . . . . . . 334
    Utilities.. . . . . . . . . . . . 335
    Continuous Integration/Continuous Deployment (CI/CD).. . . 338
    Advanced Git Topics.. . . . . . . . . 339
 
CHAPTER 17: Container, Cloud, and Orchestration Concepts.. . . . . 343
    Kubernetes Benefits and Application Use Cases.. . . . . 344
    Single-Node, Multicontainer Use Cases. . . . . . 346
    Container Persistent Storage.. . . . . . . . 346
    Container Networks.. . . . . . . . . 347
    Service Mesh.. . . . . . . . . . . 349
    Bootstrapping. . . . . . . . . . . 350
    Container Registries.. . . . . . . . . 350
 
Part IV: Troubleshooting
CHAPTER 18: Analyze and Troubleshoot Storage Issues.. . . . . . 353
    High Latency.. . . . . . . . . . . 353
    Input/Output Operations per Second (IOPS) Scenarios.. . . 354
    Capacity Issues.. . . . . . . . . . 355
    Filesystem Issues. . . . . . . . . . 358
    I/O Scheduler. . . . . . . . . . . 359
    Device Issues.. . . . . . . . . . . 360
    Mount Option Problems.. . . . . . . . . 363
 
CHAPTER 19: Analyze and Troubleshoot Network Resource Issues.. . . . 365
    Network Configuration Issues.. . . . . . . . 365
    Firewall Issues.. . . . . . . . . . 367
    Interface Errors.. . . . . . . . . . 367
    Bandwidth Limitations. . . . . . . . . 373
    Name Resolution Issues. . . . . . . . . 374
    Testing Remote Systems.. . . . . . . . . 375
 
CHAPTER 20: Analyze and Troubleshoot Central Processing Unit (CPU) and
Memory Issues. . . . 379
    Runaway Processes.. . . . . . . . . . 379
    Zombie Processes.. . . . . . . . . . 380
    High Load Average.. . . . . . . . . . 383
    High Run Queues.. . . . . . . . . . 384
    CPU Times.. . . . . . . . . . . 384
    CPU Process Priorities.. . . . . . . . . 384
    Memory Exhaustion.. . . . . . . . . 385
    Out of Memory (OOM). . . . . . . . . 385
    Swapping.. . . . . . . . . . . 386
    Hardware. . . . . . . . . . . 388
 
CHAPTER 21: Analyze and Troubleshoot User Access and File Permissions. . .
397
    User Login Issues.. . . . . . . . . . 397
    User File Access Issues. . . . . . . . . 400
    Password Issues. . . . . . . . . . 404
    Privilege Elevation.. . . . . . . . . . 405
    Quota Issues. . . . . . . . . . . 405
 
CHAPTER 22: Use systemd to Diagnose and Resolve Common Problems with a
Linux System. . . . . 411
    Unit Files. . . . . . . . . . . 412
    Common Problems.. . . . . . . . . . 429
 
9780137898558, TOC, 8/11/2022