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CompTIA Server+ Study Guide: Exam SK0-005 (2022)

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    Downloaded from StudyXY.com & + StudyXY nas, as . a TB Study L Anything This ContentHas been Poste 10n StudyXY.com as supplementary learning material. StudyXY does not endrose any university, college or publisher. Allmaterials posted are under the liability of the contribu:ors. wv 6) www.studyxy.com

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    on Exam Vouchers”

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    Server+’ Study Guide Second Edition

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    Server+’ Study Guide Second Edition Troy McMillan Cusmex

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    Copyright © 2023 by John Wiley & Sons, Inc. All rights reserved. Published by John Wiley & Sons, Inc., Hoboken, New Jersey. Published simultaneously in Canada. ISBN: 978-1-119-89143-7 ISBN: 978-1-119-89145-1(ebk.) ISBN: 978-1-119-89144-4 (ebk.) No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning, or otherwise, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 750-4470, or on the web at vw copyright. com. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at www. wiley. com/go/permission. Trademarks: WILEY, the Wiley logo, and the Sybex logo are trademarks or registered trademarks of John Wiley & Sons, Inc. and/or its affiliates, in the United States and other countries, and may not be used without written permission. CompTIA and Servers are trademarks or registered trademarks of CompTIA Properties, LLC. All other trademarks are the property of their respective owners. John Wiley & Sons, Inc. is not associated with any product or vendor mentioned in this book. Limit of Liability/Disclaimer of Warranty: While the publisher and author have used their best efforts in preparing, this book, they make no representations or warranties with respect to the accuracy or completeness of the contents of this book and specifically disclaim any implied warranties of merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives or written sales materials. The advice and strategies contained herein may not be suitable for your situation. You should consult with a professional where appropriate. Further, readers should be aware that websites listed in this work may have changed or disappeared between when this work was written and when it is read. Neither the publisher nor authors shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages. For general information on our other products and services or for technical support, please contact our Customer Care Department within the United States at (800) 762-2974, outside the United States at (317) 572-3993 or fax (317) 572-4002. Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not be available in electronic formats. For more information about Wiley products, visit our web site at www. wi Ley . com. Library of Congress Control Number: 2022942939 Cover image: © Jeremy Woodhouse/Getty Images Cover design: Wiley Study

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    For my wife, Heike, who makes the hard work all worth it 1 StudyX

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    Acknowledgments Special thanks go to Kristi Bennett for keeping me on schedule and ensuring all the deadlines are met. Also I'd like to thank David Clinton for the excellent technical edit that saved me from myself at times. Finally, as always, I'd like to acknowledge Kenyon Brown for his continued support of all my writing efforts. Study

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    About the Author Troy McMillan writes practice tests, study guides, and online course materials for CyberVista, while also running his own consulting and training business. He holds over 30 industry certifications. Troy can be reached at memillantroy@hotmail. com. About the Technical Editor David Clinton is the author of books and video courses on Linux and AWS administration, data analytics, container virtualization, and IT security. Study)

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    Contents at a Glance Introduction xxiii Assessment Test liv Answers to Assessment Test Ixi Chapter 1 Server Hardware 1 Chapter 2 Installing and Configuring Servers 63 Chapter 3 Server Maintenance 115 Chapter 4 Storage Technologies and Asset Management 143 Chapter 5 Identifying Fault Tolerance Requirements 181 Chapter 6 Securing the Server 197 Chapter 7 Securing Server Data and Network Access 243 Chapter 8 Networking and Scripting 275 Chapter 9 Disaster Recovery 309 Chapter 10 Troubleshooting Hardware and Software Issues 329 Chapter 11 Troubleshooting Network Connectivity and Security Issues 393 Chapter 12 Troubleshooting Storage Issues 445 Appendix Answers to Review Questions 495 Index 517 T= Study)

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    Contents Introduction xxiii Assessment Test liv Answers to Assessment Test Ixi Chapter 1 Server Hardware 1 Racking 3 Enclosure Sizes 3 Unit Sizes 3 Rack Layout 5 Power Cabling 14 Voltage 15 Redundant Power 18 Power Connector Types 23 Cable Management 25 Network Cabling 26 Redundant Networking 26 Twisted Pair 27 Fiber 30 Gigabit 31 10 Gigi 31 Small Form-Factor Pluggable (SFP) 32 SFP+ 32 Quad Small Form-Factor Pluggable (QSFP) 33 Cable Management 33 Server Chassis Types 35 Server Components 42 NICs 55 Summary 57 Exam Essentials 57 Review Questions 59 Chapter 2 Installing and Configuring Servers 63 Installing Server Operating Systems 67 Minimum Operating System (OS) Requirements 67 Hardware Compatibility List (HCL) 68 Installations 68 Partition and Volume Types 73 File System Types 75 Configuring and Maintaining Server Functions and Features 76 Server Roles Requirements 77

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    xvi Contents Data Migration and Transfer 9% Administrative Interfaces 97 The Purpose and Operation of Virtualization 98 Host vs. Guest 98 Virtual Networking 99 Resource Allocation and Provisioning 103 Management Interfaces for Virtual Machines 108 Cloud Models 110 Summary 111 Exam Essentials 111 Review Questions 112 Chapter 3 Server Maintenance 115 Given a Scenario, Perform Server Hardware Maintenance 117 Out-of-Band Management 117 Local Hardware Administration 122 Components 125 Drives 126 Hot-Swappable Hardware 129 Basic Input/Output System (BIOS)/Unified Extensible Firmware Interface (UEFI) 131 Explain Licensing Concepts 132 Models 132 Open Source 134 Subscription 135 License vs. Maintenance and Support 135 Volume Licensing 136 License Count Validation 136 Version Compatibility 136 Summary 137 Exam Essentials 137 Review Questions 138 Chapter 4 Storage Technologies and Asset Management 143 Given a Scenario, Deploy and Manage Storage 146 RAID Levels and Types 146 Capacity Planning 151 Hard Drive Media Types 153 Interface Types 157 Shared Storage 161 Explain the Importance of Asset Management and Documentation 165 Asset Management 166 Documentation Management 169 Document Availability 175 Secure Storage of Sensitive Documentation 175

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    Contents xvii Summary 175 Exam Essentials 176 Review Questions 177 Chapter 5 Identifying Fault Tolerance Requirements 181 Clustering 182 Active-Active 182 Active-Passive 183 Failover/Failback 183 Proper Patching Procedures 184 Heartbeat 184 Fault Tolerance 184 Server-Level Redundancy vs. Component Redundancy 185 Redundant Server Network Infrastructure 185 Load Balancing 185 Network Interface Card (NIC) Teaming and Redundancy ~~ 186 Summary 191 Exam Essentials 191 Review Questions 192 Chapter 6 Securing the Server 197 Summarize Physical Security Concepts 200 Physical Access Controls 200 Environmental Controls 206 Explain Data Security Risks and Mitigation Strategies 210 Security Risks 210 Mitigation Strategies 223 Given a Scenario, Apply Server Hardening Methods 226 OS Hardening 226 Application Hardening 228 Host Security 228 Hardware Hardening 230 Summary 238 Exam Essentials 238 Review Questions 239 Chapter 7 Securing Server Data and Network Access 243 Summarize Data Security Concepts 246 Encryption Paradigms 246 VPN 248 IPsec 248 Retention Policies 249 Data Storage 249

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    xviii Contents UEFI/BIOS Passwords 250 Bootloader Passwords 251 Business Impact 251 Explain Important Concepts Pertaining to Identity and Access Management for Server Administration 252 User Accounts 252 Permissions and Access Controls 256 Auditing 261 Multifactor Authentication (MFA) 264 Single Sign-on (SSO) 265 Summarize Proper Server Decommissioning Concepts 265 Proper Removal Procedures 265 Media Destruction 266 Media Retention Requirements 268 Cable Remediation 268 Electronics Recycling 268 Summary 269 Exam Essentials 269 Review Questions 270 Chapter 8 Networking and Scripting 275 Given a Scenario, Configure Servers to Use Network Infrastructure Services 277 IP Configuration 277 Virtual Local Area Network (VLAN) 277 Default Gateways 279 Name Resolution 279 Addressing Protocols 285 Firewall 287 Static vs. Dynamic 293 MAC Addresses 296 Summarize Scripting Basics for Server Administration 297 Script Types 297 Environment Variables 299 Comment Syntax 299 Basic Script Constructs 299 Basic Data Types 301 Common Server Administration Scripting Tasks 301 Summary 302 Exam Essentials 303 Review Questions 304

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    Contents xix Chapter 9 Disaster Recovery 309 Explain the Importance of Backups and Restores 311 Backup Methods 311 Backup Frequency 313 Media Rotation 313 Backup Media Types 315 File-Level vs. System-State Backup 317 Restore Methods 317 Backup Validation 318 Media Inventory Before Restoration 319 Explain the Importance of Disaster Recovery 319 Site Types 319 Replication 320 Testing 323 Summary 323 Exam Essentials 324 Review Questions 325 Chapter 10 Troubleshooting Hardware and Software Issues 329 Explain the Troubleshooting Theory and Methodology 334 Identify the Problem and Determine the Scope 334 Establish a Theory of Probable Cause (Question the Obvious) 336 Test the Theory to Determine the Cause 337 Establish a Plan of Action to Resolve the Problem 337 Implement the Solution or Escalate 338 Verify Full System Functionality and, if Applicable, Implement Preventive Measures 338 Perform a Root Cause Analysis 338 Document Findings, Actions, and Outcomes Throughout the Process 339 Given a Scenario, Troubleshoot Common Hardware Failures 339 Common Problems 339 Causes of Common Problems 351 Tools and Techniques 359 Given a Scenario, Troubleshoot Common OS and Software Problems 363 Common Problems 363 Causes of Common Problems 369 OS and Software Tools and Techniques 374 Summary 387 Exam Essentials 387 Review Questions 389

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    xx Contents Chapter 11 Troubleshooting Network Connectivity and Security Issues 393 Given a Scenario, Troubleshoot Network Connectivity Issues 396 Common Problems 396 Causes of Common Problems 402 Tools and Techniques 411 Given a Scenario, Troubleshoot Security Problems 419 Common Problems 420 Causes of Common Problems 421 Security Tools 433 Summary 439 Exam Essentials 440 Review Questions 441 Chapter 12 Troubleshooting Storage Issues 445 Given a Scenario, Troubleshoot Storage Problems 447 Common Problems 447 Causes of Common Problems 458 Tools and Techniques 467 Summary 489 Exam Essentials 489 Review Questions 490 Appendix Answers to Review Questions 495 Chapter 1: Server Hardware 496 Chapter 2: Installing and Configuring Servers 497 Chapter 3: Server Maintenance 499 Chapter 4: Storage Technologies and Asset Management 501 Chapter 5: Identifying Fault Tolerance Requirements 502 Chapter 6: Securing the Server 504 Chapter 7: Securing Server Data and Network Access 506 Chapter 8: Networking and Scripting 508 Chapter 9: Disaster Recovery 509 Chapter 10: Troubleshooting Hardware and Software Issues ~~ 511 Chapter 11: Troubleshooting Network Connectivity and Security Issues 513 Chapter 12: Troubleshooting Storage Issues 515 Index 517

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    Table of Exercises Exercise 1.1 ReplacingaCPUinaServer...................coiviinenina......46 Exercise 1.2 Changing RAM in an IBM Blade Server. ............................51 Exercise 3.1 Changing aDriveonaDell 1850 .................................128 Exercise 3.2 Replacing the Back-Panel Fan in a Dell PowerEdge ..................130 Exercise 4.1 Installinga SATA Drive .................ciiiiieeiienneena..... 1585 Exercise 5.1 Configuring a NICTeam. . ...............ouuiiaeeeeeueennnna....187 Exercise 5.2 Configuring a NICTeam. .................oiiiaeeeeeeeennaaa...190 Exercise 6.1 Disabling the Network Adapter in Windows Server 2012R2...........232 Exercise 6.2 Changing the Boot Order Using the BIOS. .........................234 Exercise 6.3 Changing the Boot Order Using the UEFI ..........................236 Exercise 8.1 Configuring a Suffix Search List. .................................280 Exercise 8.2 Configuring a Suffix Search Listas a Policy ........................282 Exercise 10.1 Replacing the Battery inan IBM Server............................344 Exercise 10.2 Troubleshooting Expansion Cards in a Dell PowerEdge T110 ..........352 Exercise 10.3 Replacing the SCSI Backplane ...................................354 Exercise 11.1 Using a Sniffer to Identify the Code Number .......................399 Exercise 11.2 Identifying an IP Address Conflict ................................403 Exercise 11.3 Installing theTelnetClient.......................................436 Exercise 12.1 Repairing the System in Windows Server 2012R2...................462 Exercise 12.2 Repairing Boot Files inWindows Server 2012R2....................462 Exercise 12.3 Checking the Disk in Windows Server 2012R2......................465 Exercise 12.4 Managing Hardware RAID ...............coiieeeeeeiennnnna... 477

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    Introduction The Server+ certification program was developed by CompTIA to provide an industry-wide means of certifying the competency of computer server technicians. The Server+ certification, which is granted to those who have attained the level of knowledge and troubleshooting skills that are needed to provide capable support to the most commonly used server and storage systems, is similar to other certifications in the computer industry. The theory behind these certifications is that if you needed to have service performed on any of their products, you would sooner call a technician who has been certified in one of the appropriate pro- grams than you would just call the first so-called “expert” listed online. CompTIA’ Server+ exam objectives are periodically updated to keep the certification applicable to the most recent hardware and software. This is necessary because a technician must be able to work on the latest equipment. The most recent revisions to the objectives— and to the whole program—were introduced in 2021 and are reflected in this book. This book is a tool to help you prepare for this certification—and for the new areas of focus of a modern server technician’s job. What Is Server+ Certification? The Server+ certification program was created to offer a wide-ranging certification in the sense that it’s intended to certify competence with servers from many different makers and vendors. Everyone must take and pass one exam: SK0-005. The Server+ certification isn’t awarded until you've passed the test. For the latest pric- ing on the exams and updates to the registration procedures, call Pearson VUE at (877) 551-7587. You can also go to the website, www. vue. com, for additional information or to register online. If you have further questions about the scope of the exams or related Comp- TIA programs, refer to the CompTIA website at www. comptia.org. Who Should Buy This Book? If you want to acquire a solid foundation in servers and the storage systems they use, and your goal is to prepare for the exams by filling in any gaps in your knowledge, this book is for you. You'll find clear explanations of the concepts you need to grasp and plenty of help to achieve the high level of professional competency you need in order to succeed in your chosen field. If you want to become certified as a Server+ holder, this book is definitely what you need. However, if you just want to attempt to pass the exam without really understanding the basics of personal computers, this guide isn’t for you. It’s written for people who want to acquire skills and knowledge of servers and storage systems.

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    xxiv Introduction This book covers everything you need to know to pass the CompTIA Server+ exam. B - What's Included in the Book ‘We've included several learning tools throughout the book: Objective Map and Opening List of Objectives We have included a detailed exam objective map showing you where each of the exam objectives is covered. In addition, each chapter opens with a list of the exam objectives it covers. Use these resources to see exactly where each of the exam topics is covered. Assessment Test We have provided an assessment test that you can use to check your readiness for the exam at the end of this Introduction. Take this test before you start reading the book; it will help you determine the areas on which you might need to brush up. The answers to the assessment test questions appear on a separate page after the last question of the test. Each answer includes an explanation and a note telling you the chapter in which the material appears. Exam Essentials Each chapter, just before the summary, includes a number of exam essentials. These are the key topics that you should take from the chapter in terms of areas on which you should focus when preparing for the exam. Chapter Review Questions To test your knowledge as you progress through the book, there are review questions at the end of each chapter. As you finish each chapter, answer the review questions and then check your answers—the correct answers appear in the Appendix. You can go back to reread the section that deals with each question you got wrong to ensure that you answer correctly the next time you're tested on the material. Interactive Online Learning Environment and Test Bank The interactive online learning environment that accompanies CompTIA Server+ Exam SK0-005 provides a test bank with study tools to help you prepare for the certification exams and increase your chances of passing them the first time. The test bank includes the following elements: Sample Tests All of the questions in this book, including the assessment test, which you'll find at the end of this Introduction, and the chapter tests that include the review questions at the end of each chapter are provided with answers and explanations. In addition, there are two practice exams. Use these questions to test your knowledge of the study guide material. The online test bank runs on multiple devices. Flashcards One set of questions is provided in digital flashcard format (a question fol- lowed by a single correct answer). You can use the flashcards to reinforce your learning and provide last-minute test prep before the exam. Study

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    Introduction ov Glossary The key terms from this book and their definitions are available as a fully searchable PDF. Go to www.wiley.com/go/sybextestprep to register and gain access to this interac- tive online learning environment and test bank with study tools. Like all exams, the Server+ certification from CompTIA is updated peri- Pp: TE odically and may eventually be retired or replaced. At some point after CompTIA is no longer offering this exam, the old editions of our books and online tools will be retired. If you have purchased this book after the exam was retired, or are attempting to register in the Sybex online learning environment after the exam was retired, please know that we make no guarantees that this exam’s online Sybex tools will be available once the exam is no longer available. If you want a solid foundation for preparing for the Server+ exam, this is the book for you. We've spent countless hours putting together this book with the sole intention of helping you prepare for the exams. This book is loaded with valuable information, and you will get the most out of your study time if you understand how we put the book together. Here’s a list that describes how to approach studying: 1. Take the assessment test immediately following this Introduction. It’s okay if you don’t know any of the answers—that’s what this book is for. Carefully read over the expla- nations for any question you get wrong, and make note of the chapters where that material is covered. 2. Study each chapter carefully, making sure you fully understand the information and the exam objectives listed at the beginning of each one. Again, pay extra-close attention to any chapter that includes material covered in questions you missed on the assessment test. 3. Read over the summary and exam essentials. These will highlight the sections from the chapter with which you need to be familiar before sitting for the exam. 4. Answer all of the review questions at the end of each chapter. Specifically note any ques- tions that confuse you, and study the corresponding sections of the book again. Don’t just skim these questions! Make sure that you understand each answer completely. 5. Go over the electronic flashcards. These help you prepare for the latest Server+ exam, and they're really great study tools. 6. Take the practice exam. Study

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    xvi Introduction Performance-Based Questions CompTIA includes performance-based questions on the Server+ exams. These are not the traditional multiple-choice questions with which you're probably familiar. These questions require the candidate to know how to perform a specific task or series of tasks. The candidate will be presented with a scenario and will be asked to complete a task. They will be taken to a simulated environment where they will have to perform a series of steps and will be graded on how well they complete the task. Here are some general tips for taking your exams successfully: = Bring two forms of ID with you. One must be a photo ID, such as a driver's license. The other can be a major credit card or a passport. Both forms must include a signature. = Arrive early at the exam center so you can relax and review your study materials, partic- ularly tables and lists of exam-related information. = Read the questions carefully. Don’t be tempted to jump to an early conclusion. Make sure you know exactly what the question is asking. = Don’t leave any unanswered questions. Unanswered questions are scored against you. = There will be questions with multiple correct responses. When there is more than one correct answer, a message at the bottom of the screen will prompt you to either “Choose two” or “Choose all that apply.” Be sure to read the messages displayed to know how many correct answers you must choose. = When answering multiple-choice questions you're not sure about, use a process of elim- ination to get rid of the obviously incorrect answers first. Doing so will improve your odds if you need to make an educated guess. = On form-based tests (nonadaptive), because the hard questions will eat up the most time, save them for last. You can move forward and backward through the exam. = For the latest pricing on the exams and updates to the registration procedures, visit CompTIA’s website at www. comptia.org. CompTIA goes to great lengths to ensure that its certification programs accurately reflect the IT industry’s best practices. The company does this by establishing Cornerstone Committees for each of its exam programs. Each committee consists of a small group of IT professionals, training providers, and publishers who are responsible for establishing the exam’s baseline competency level and who determine the appropriate target audience level. Study

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    Introduction vii Once these factors are determined, CompTIA shares this information with a group of hand-selected subject matter experts (SMEs). These folks are the true brainpower behind the certification program. They review the committee’s findings, refine them, and shape them into the objectives you see before you. CompTIA calls this process a job task analysis (JTA). Finally, CompTIA conducts a survey to ensure that the objectives and weightings truly reflect the job requirements. Only then can the SMEs go to work writing the hundreds of questions needed for the exam. And, in many cases, they have to go back to the drawing board for further refinements before the exam is ready to go live in its final state. So, rest assured, the content you're about to learn will serve you long after you take the exam. Exam objectives are subject to change at any time without prior notice and at CompTIA sole discretion. Please visit the certification page of CompTIA’s website at www. comptia. org for the most current listing of exam objectives. CompTIA also publishes relative weightings for each of the exam’s objectives. The following tables list the objective domains and the extent to which they’re represented on each exam. SK0-005 Exam Domains % of Exam 1.0 Server Hardware Installation and 18% Management 2.0 Server Administration 30% 3.0 Security and Disaster Recovery 24% 4.0 Troubleshooting 28% Total 100% The following sections look at the objectives beneath each of these domains in more detail. CompTIA SK0-005 Exam 1.1 Given a scenario, install physical hardware. = Enclosure sizes = Unit sizes = 10,20, 3U, etc. = Rack layout = Cooling management = Safety Proper lifting techniques Rack balancing Floor load limitations Study

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    viii Introduction = Power distribution unit (PDU) = Keyboard-video mouse (KVM) placement = Rail kits = Power cabling = Redundant power Uninterruptible power supply (UPS) Separate circuits Separate providers = Power connector types = Cable management = Network cabling = Redundant networking = Twisted pair = Fiber SC LC Single mode Multimode = Gigabit = 10 GigE = Small form factor pluggable (SFP) = SFP+ = Quad small form factor pluggable (QSFP) = Cable management = Server chassis types = Tower = Rack mount = Blade enclosure = Server components = Hardware compatibility list (HCL) = Central processing unit (CPU) = Graphics processing unit (GPU) = Memory

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