CompTIA A+ Complete Review Guide

A comprehensive and efficient way to prepare for the A+ exam and succeed as a computer technician

The newly revised Fifth Edition of the CompTIA A+ Complete Review Guide: Core 1 Exam 220-1101 and Core 2 Exam 220-1102 delivers essential and accessible exam prep material for the sought-after A+ certification. It offers full coverage of all of the A+ exam objectives covered on the latest Core 1 and Core 2 exams, ensuring you'll have the knowledge and skills you need to succeed on the test and in the real world.

This book covers mobile devices, networking, hardware, virtualization and cloud computing, hardware and network troubleshooting, operating systems, security, software troubleshooting, and operational procedures. Its comprehensive discussions of all exam competencies will prepare you for your first role as a computer technician and let you hit the ground running.

The book also offers:

• Accessible and easy-to-follow organization perfect for quick review and reinforcement of key topics
• Practical examples and insights drawn from the real-world experience of actual computer technicians
• Access to the Sybex online test bank, with chapter review questions, full-length practice exams, hundreds of electronic flashcards, and a glossary of key terms

Ideal for anyone preparing for the Core 1 and Core 2 A+ exams, CompTIA A+ Complete Review Guide: Core 1 Exam 220-1101 and Core 2 Exam 220-1102 is also perfect for all aspiring and early-career computer technicians who seek to improve their performance in the field.

Auteur

TROY MCMILLAN holds more than 30 IT certifications including A+ and Network+. He is a Product Developer and Technical Editor for CyberVista (formerly Kaplan IT), helping individuals and organizations train on technology and prepare for technology certifications. Troy is also a full-time trainer, teaching CompTIA, Cisco, Microsoft, and Wireless classes. He authored previous editions of CompTIA(R) A+(R) Complete Review Guide from Sybex.

Contenu

Introduction xxiii Part I CompTIA A+ Core 1 Exam 220- 1101 1 Chapter 1 Mobile Devices 3 1.1 Given a scenario, install and configure laptop hardware and components 5 Hardware/device replacement 5 Physical privacy and security components 9 Exam essentials 10 1.2 Compare and contrast the display components of mobile devices 10 Types 11 Mobile display components 13 Exam essentials 14 1.3 Given a scenario, set up and configure accessories and ports of mobile devices 14 Connection methods 15 Accessories 20 Exam essentials 26 1.4 Given a scenario, configure basic mobile- device network connectivity and application support 26 Wireless/cellular data network (enable/disable) 27 Bluetooth 29 Location services 32 Mobile device management (MDM)/mobile application management (MAM) 32 Mobile device synchronization 36 Exam essentials 40 Review Questions 41 Chapter 2 Networking 45 2.1 Compare and contrast Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) ports, protocols, and their purposes 50 Ports and protocols 50 TCP vs. UDP 53 Exam essentials 54 2.2 Compare and contrast common networking hardware 54 Routers 55 Switches 55 Access points 55 Patch panel 56 Firewall 56 Power over Ethernet (PoE) 56 Hub 58 Cable modem 58 Digital subscriber line (DSL) 58 Optical network terminal (ONT) 59 Network interface card (NIC) 59 Software- defined networking (SDN) 60 Exam essentials 61 2.3 Compare and contrast protocols for wireless networking 61 Frequencies 61 Channels 62 Bluetooth 63 802.11 63 Long- range fixed wireless 64 NFC 65 Radio- frequency identification (RFID) 65 Exam essentials 65 2.4 Summarize services provided by networked hosts 66 Server roles 66 Internet appliances 68 Legacy/embedded systems 69 Internet of Things (IoT) devices 70 Exam essentials 70 2.5 Given a scenario, install and configure basic wired/wireless small office/home office (SOHO) networks 71 Internet Protocol (IP) addressing 71 Exam essentials 79 2.6 Compare and contrast common network configuration concepts 79 DNS 79 DHCP 81 Virtual LAN (VLAN) 82 Virtual private network (VPN) 83 Exam essentials 83 2.7 Compare and contrast Internet connection types, network types, and their features 84 Internet connection types 84 Network types 85 Exam essentials 87 2.8 Given a scenario, use networking tools 87 Crimper 87 Cable stripper 87 WiFi analyzer 87 Toner probe 88 Punchdown tool 88 Cable tester 88 Loopback plug 89 Network tap 89 Exam essentials 89 Review Questions 90 Chapter 3 Hardware 95 3.1 Explain basic cable types and their connectors, features, and purposes 102 Network cables 102 Peripheral cables 107 Video cables 108 Hard drive cables 111 Adapters 117 Connector types 119 Exam essentials 124 3.2 Given a scenario, install the appropriate RAM 124 RAM types 124 Single- channel/Dual- channel 127 Triple Channel 127 Quad- channel 128 Exam essentials 128 3.3 Given a scenario, select and install storage devices 129 Hard drives 129 SSDs 131 Drive configurations 132 Removable storage 134 Exam essentials 139 3.4 Given a scenario, install and configure motherboards, central processing units (CPUs), and add- on cards 139 Motherboard form factor 139 Motherboard connector types 142 Motherboard compatibility 148 Basic Input/Output System (BIOS)/Unified Extensible Firmware Interface (UEFI) settings 153 Encryption 155 CPU architecture 155 Expansion cards 156 Cooling 159 Exam essentials 160 3.5 Given a scenario, install or replace the appropriate power supply 160 Input 115V vs. 220V 161 Output 3.3V vs. 5V vs. 12V 161 20- pin to 24- pin motherboard adapter 161 Redundant power supply 162 Modular power supply 162 Wattage rating 162 Exam essentials 163 3.6 Given a scenario, deploy and configure multifunction devices/printers and settings 163 Properly unboxing a device - setup location considerations 163 Use appropriate drivers for a given OS 164 Device connectivity 164 Public/shared devices 165 Configuration settings 167 Security 168 Network scan services 169 Automatic document feeder (ADF)/flatbed scanner 169 Exam essentials 170 3.7 Given a scenario, install and replace printer consumables 170 Laser 170 Inkjet 181 Thermal 184 Impact 186 Exam essentials 188 Review Questions 190 Chapter 4 Virtualization and Cloud Computing 197 4.1 Summarize cloud computing concepts 199 Common cloud models 199 Cloud characteristics 200 Desktop virtualization 201 Exam essentials 201 4.2 Summarize aspects of client- side virtualization 202 Purpose of virtual machines 202 Exam essentials 205 Review Questions 206 Chapter 5 Hardware and Network Troubleshooting 209 5.1 Given a scenario, apply the best practice methodology to resolve problems 213 Always consider corporate policies, procedures, and impacts before implementing changes 213 1. Identify the problem 214 2. Establish a theory of probable cause (question the obvious) 214 3. Test the theory to determine cause 215 4. Establish a plan of action to resolve the problem and implement the solution 215 5. Verify full system functionality and, if applicable, implement preventive measures 216 6. Document the findings, actions, and outcomes 216 Exam essentials 216 5.2 Given a scenario, troubleshoot problems related to motherboards, RAM, CPU, and power 216 Common symptoms 217 Exam essentials 224 5.3 Given a scenario, troubleshoot and diagnose problems with storage drives and RAID arrays 225 Common symptoms 225 Exam essentials 228 5.4 Given a scenario, troubleshoot video, projector, and display issues 229 Common symptoms 229 Exam essentials 232 5.5 Given a scenario, troubleshoot common issues with mobile devices 232 Common symptoms 233 Exam essentials 237 5.6 Given a scenario, troubleshoot and resolve printer issues 238 Common symptoms 238 Exam essentials 244 5.7 Given a scenario, troubleshoot problems with wired and wireless networks 244 Common symptoms 244 Exam essentials 247 Review Questions 248 Part II CompTIA A+ Core 2 Exam 220- 1102 251 Chapter 6 Operating Systems 2…