Networking Essentials - A CompTIA Network+ N10-008 Textbook 6th Edition

Description

Thoroughly updated to reflect the CompTIA® Network+ N10-008 exam, Networking Essentials, Sixth Edition is a practical, up-to-date, and hands-on guide to the basics of networking. Written from the viewpoint of a working network administrator, it requires absolutely no experience with either network concepts or day-to-day network management. Networking Essentials, Sixth Edition guides readers from an entry-level knowledge in computer networks to advanced concepts in Ethernet networks; router configuration; TCP/IP networks; routing protocols; local, campus, and wide area network configuration; network security; wireless networking; optical networks; Voice over IP; the network server; and Linux networking. This edition reflects the latest exam topics and objectives associated with network security and hardening, cloud networking, virtualization, 5G, and other recent advances in wireless technology, infrastructure management, and current hardware and devices. It also explains many new terms now addressed by CompTIAs N10-008 exam. Clear goals are outlined for each chapter, and every concept is introduced in easy-to-understand language that explains how and why networking technologies are used. Each chapter is packed with real-world examples and practical exercises that reinforce all concepts and guide you through using them to configure, analyze, and fix networks. CHALLENGE SIMULATION SOFTWARE provides hands-on experience with entering router and switch commands, setting up functions, and configuring interfaces and protocols WIRESHARK NETWORK PROTOCOL ANALYZER presents techniques and examples of data traffic analysis throughout PROVEN TOOLS FOR MORE EFFECTIVE LEARNING AND NETWORK+ PREP, including chapter outlines, summaries, and Network+ objectives WORKING EXAMPLES IN EVERY CHAPTER to reinforce key concepts and promote mastery KEY TERM DEFINITIONS, LISTINGS, AND EXTENSIVE GLOSSARY to help you master the language of networking QUESTIONS, PROBLEMS, AND CRITICAL THINKING QUESTIONS to help you deepen your understanding Cover Title Copyright Contents At A Glance Contents Introduction CHAPTER 1 Introduction to Computer Networks Chapter Outline Objectives Key Terms 1-1 Introduction 1-2 Network Topologies Section 1-2 Review Test Your Knowledge 1-3 The OSI Model Section 1-3 Review Test Your Knowledge 1-4 The Ethernet LAN IP Addressing Section 1-4 Review Test Your Knowledge 1-5 Home Networking Securing a Home Network IP Addressing in a Home Network Section 1-5 Review Test Your Knowledge 1-6 Assembling an Office LAN Diagram the Network Connect the Network Devices Configure the Computers to Operate on the LAN Section 1-6 Review Test Your Knowledge 1-7 Testing and Troubleshooting a LAN Section 1-7 Review Test Your Knowledge Summary Questions and Problems Certification Questions CHAPTER 2 Physical Layer Cabling: Twisted-Pair Chapter Outline Objectives Key Terms 2-1 Introduction 2-2 Structured Cabling Horizontal Cabling Section 2-2 Review Test Your Knowledge 2-3 Twisted-Pair Cable Unshielded Twisted-Pair Cable Shielded Twisted-Pair Cable Section 2-3 Review Test Your Knowledge 2-4 Terminating Twisted-Pair Cables Computer Communication Straight-Through and Crossover Patch Cables Section 2-4 Review Test Your Knowledge 2-5 Cable Testing and Certification Section 2-5 Review Test Your Knowledge 2-6 10 Gigabit Ethernet over Copper Overview Alien Crosstalk Signal Transmission Section 2-6 Review Test Your Knowledge 2-7 Troubleshooting Cabling Systems Cable Stretching Cable Failing to Meet Manufacturer Specifications CAT5e Cable Test Examples Section 2-7 Review Test Your Knowledge Summary Questions and Problems Certification Questions CHAPTER 3 Physical Layer Cabling: Fiber Optics Chapter Outline Objectives Key Terms 3-1 Introduction 3-2 The Nature of Light Graded-Index Fiber Single-Mode Fibers Section 3-2 Review Test Your Knowledge 3-3 Fiber Attenuation and Dispersion Attenuation Dispersion Dispersion Compensation Section 3-3 Review Test Your Knowledge 3-4 Optical Components Intermediate Components Detectors Fiber Connectorization Section 3-4 Review Test Your Knowledge 3-5 Optical Networking Defining Optical Networking Building Distribution Campus Distribution Optical Link Budget Section 3-5 Review Test Your Knowledge 3-6 Safety Section 3-6 Review Test Your Knowledge 3-7 Troubleshooting Fiber Optics: The OTDR Section 3-7 Review Test Your Knowledge Summary Questions and Problems Certification Questions CHAPTER 4 Wireless Networking Chapter Outline Objectives Key Terms 4-1 Introduction 4-2 The IEEE 802.11 Wireless LAN Standard Section 4-2 Review Test Your Knowledge 4-3 802.11 Wireless Networking Section 4-3 Review Test Your Knowledge 4-4 Bluetooth, WiMAX, RFID, and Mobile Communications Bluetooth WiMAX Radio Frequency Identification Mobile (Cellular) Communications Section 4-4 Review Test Your Knowledge 4-5 Configuring a Point-to-Multipoint Wireless LAN: A Case Study Step 1: Conducting an Antenna Site Survey Step 2: Establishing a Point-to-Point Wireless Link to the Home Network Steps 3 and 4: Configuring the Multipoint Distribution and Conducting an RF Site Survey Step 5: Configuring the Remote Installations Section 4-5 Review Test Your Knowledge 4-6 Troubleshooting Wireless Networks Access Point Hardware Issues Wireless Router Issues Wireless Compatibility Signal Strength Problems Wireless Coverage Extending the Wireless Range Frequency Interference Problems Wireless Channel Utilization Load Issues SSID Issues Securing Wi-Fi Issues Cable Issues Deauthentication/Disassociation Attacks DHCP Issues Wireless Printer Issues Section 4-6 Review Test Your Knowledge Summary Questions and Problems Critical Thinking Certification Questions CHAPTER 5 Interconnecting the LANs Chapter Outline Objectives Key Terms 5-1 Introduction 5-2 The Network Bridge Section 5-2 Review Test Your Knowledge 5-3 The Network Switch Hub and Switch Comparison Managed Switches Multilayer Switches Section 5-3 Review Test Your Knowledge 5-4 The Router The Router Interface Quality of Service Section 5-4 Review Test Your Knowledge 5-5 The Console Port Connection Configuring the PuTTY Software (Windows) Configuring the ZTerm Serial Communications Software (Mac) Section 5-5 Review Test Your Knowledge 5-6 Interconnecting LANs with the Router Gateway Address Network Segments Section 5-6 Review Test Your Knowledge 5-7 Interconnecting LANs and WANs Three-Tiered LAN Architecture Core Distribution/Aggregation Layer Access/Edge Layer Traffic Flow Data Center Architecture WAN High-Speed Serial Connections Data Channels Point of Presence Metro Optical Ethernet/Carrier Ethernet Ethernet Service Types Service Attributes Section 5-7 Review Test Your Knowledge Summary Questions and Problems Critical Thinking Certification Questions CHAPTER 6 TCP/IP Chapter Outline Objectives Key Terms 6-1 Introduction 6-2 The TCP/IP Layers The Application Layer The Transport Layer The Internet Layer The Network Interface Layer Section 6-2 Review Test Your Knowledge 6-3 Number Conversion Binary-to-Decimal Conversion Decimal-to-Binary Conversion Hexadecimal Numbers Converting Hexadecimal Section 6-3 Review Test Your Knowledge 6-4 IPv4 Addressing Section 6-4 Review Test Your Knowledge 6-5 Subnet Masks: Subnetting and Supernetting Subnetting Alternative Technique to Derive the Subnets: Magic Number Subnet Masking Examples Gateway IP Address Section 6-5 Review Test Your Knowledge 6-6 Supernetting, CIDR Blocks, and VLSM Section 6-6 Review Test Your Knowledge 6-7 IPv6 Addressing Transitioning to IPv6 CIDR for IPv6 Section 6-7 Review Test Your Knowledge Summary Questions and Problems Critical Thinking Certification Questions CHAPTER 7 Introduction to Router Configuration Chapter Outline Objectives Key Terms 7-1 Introduction 7-2 Router Fundamentals Layer 3 Networks Section 7-2 Review Test Your Knowledge 7-3 The Router’s User EXEC Mode (Router>) The User EXEC Mode Router Configuration Challenge: User EXEC Mode Section 7-3 Review Test Your Knowledge 7-4 The Router’s Privileged EXEC Mode (Router#) The hostname Command The enable secret Command Setting the Line Console Passwords FastEthernet Interface Configuration Serial Interface Configuration Router Configuration Challenge: Privileged EXEC Mode Section 7-4 Review Test Your Knowledge 7-5 Configuring the Network Interface: Auto-negotiation Auto-negotiation Steps Full-Duplex/Half-Duplex Section 7-5 Review Test Your Knowledge 7-6 Troubleshooting the Router Interface Section 7-6 Review Test Your Knowledge Summary Questions and Problems Critical Thinking Certification Questions CHAPTER 8 Introduction to Switch Configuration Chapter Outline Objectives Key Terms 8-1 Introduction 8-2 Introduction to VLANs Virtual LANs Section 8-2 Review Test Your Knowledge 8-3 Introduction to Switch Configuration Hostname Enable Secret Setting the Line Console Passwords Static VLAN Configuration VLAN Subinterfaces Networking Challenge: Switch Configuration Section 8-3 Review Test Your Knowledge 8-4 Spanning Tree Protocol Section 8-4 Review Test Your Knowledge 8-5 Power over Ethernet Section 8-5 Review Test Your Knowledge 8-6 Troubleshooting the Switch Interface Section 8-6 Review Test Your Knowledge Summary Questions and Problems Critical Thinking Certification Questions CHAPTER 9 Routing Protocols Chapter Outline Objectives Key Terms 9-1 Introduction 9-2 Static Routing Gateway of Last Resort Configuring Static Routes Networking Challenge: Static Routes Section 9-2 Review Test Your Knowledge 9-3 Dynamic Routing Protocols Section 9-3 Review Test Your Knowledge 9-4 Distance Vector Protocols Section 9-4 Review Test Your Knowledge 9-5 Configuring RIP and RIPv2 Configuring Routes with RIP Configuring Routes with RIPv2 Networking Challenge: RIPv2 Section 9-5 Review Test Your Knowledge 9-6 Link State Protocols Section 9-6 Review Test Your Knowledge 9-7 Configuring the Open Shortest Path First (OSPF) Routing Protocol Networking Challenge: OSPF Section 9-7 Review Test Your Knowledge 9-8 Advanced Distance Vector Protocol: Configuring Enhanced Interior Gateway Routing Protocol (EIGRP) Configuring Routes with EIGRP Networking Challenge: EIGRP Section 9-8 Review Test Your Knowledge 9-9 Internet Routing with Border Gateway Protocol (BGP) Configuring BGP Section 9-9 Review Test Your Knowledge 9-10 IPv6 Routing IPv6 Static Routing RIP for IPv6 OSPF for IPv6 EIGRP for IPv6 BGP for IPv6 Section 9-10 Review Test Your Knowledge Summary Questions and Problems Critical Thinking Certification Questions CHAPTER 10 Managing the Network Infrastructure Chapter Outline Objectives Key Terms 10-1 Introduction 10-2 Domain Name and IP Address Assignment Section 10-2 Review Test Your Knowledge 10-3 IP Address Management with DHCP The DHCP Data Packets DHCP Deployment Section 10-3 Review Test Your Knowledge 10-4 Scaling a Network with NAT and PAT Section 10-4 Review Test Your Knowledge 10-5 Domain Name System (DNS) DNS Resource Records Section 10-5 Review Test Your Knowledge 10-6 Network Management Protocols Configuring SNMP Section 10-6 Review Test Your Knowledge 10-7 Analyzing Network Traffic Section 10-7 Review Test Your Knowledge 10-8 Network Analyzer: Wireshark Downloading and Installing Wireshark Using Wireshark to Capture Packets Using Wireshark to Inspect Data Packets Section 10-8 Review Test Your Knowledge 10-9 Analyzing Computer Networks: FTP Data Packets Section 10-9 Review Test Your Knowledge 10-10 Troubleshooting IP Networks Verifying Network Settings Investigating IP Address Issues Finding Subnet Mask Issues Looking for Gateway Issues Identifying Name Resolution Issues Investigating DHCP Issues Checking for Blocked TCP/UDP Ports Section 10-10 Review Test Your Knowledge Summary Questions and Problems Certification Questions CHAPTER 11 Network Security Chapter Outline Objectives Key Terms 11-1 Introduction 11-2 Intrusion: How Attackers Gain Control of a Network Social Engineering Password Cracking Packet Sniffing Packet Sniffing Attacks Vulnerable Software Preventing Vulnerable Software Attacks Malware Section 11-2 Review Test Your Knowledge 11-3 Denial-of-Service Distributed Denial-of-Service Attacks Section 11-3 Review Test Your Knowledge 11-4 Security Software and Hardware Personal Firewalls Antivirus/Anti-malware Software Configuring Firewall Settings for Windows 10 Configuring Firewall Settings for macOS Configuring Firewall Settings for Linux Firewalls Other Security Appliances Computer Forensics Section 11-4 Review Test Your Knowledge 11-5 Managing Network Access Section 11-5 Review Test Your Knowledge 11-6 Router Security Router Access Router Services Logging Section 11-6 Review Test Your Knowledge 11-7 Switch Security Switch Port Security Dynamic ARP Inspection STP Special Features Section 11-7 Review Test Your Knowledge 11-8 Wireless Security Section 11-8 Review Test Your Knowledge 11-9 Remote Access and VPN Technologies Analog Modem Technologies Cable Modems xDSL Modems Remote Access Server Virtual Private Network VPN Tunneling Protocols Configuring a Remote Client’s VPN Connection Configuring a Windows 10 VPN Client Configuring a macOS VPN Client Configuring a Cisco VPN Client Section 11-9 Review Test Your Knowledge 11-10 Physical Security Access Control Hardware Detection Methods Asset Disposal Internet of Things (IoT) Security Devices Section 11-10 Review Test Your Knowledge Summary Questions and Problems Critical Thinking Certification Questions CHAPTER 12 Cloud Computing and Virtualization Chapter Outline Objectives Key Terms 12-1 Introduction 12-2 Virtualization Setting Up Virtualization on Windows 10 Section 12-2 Review Test Your Knowledge 12-3 Cloud Computing Cloud Computing Service Models Cloud Infrastructures Section 12-3 Review Test Your Knowledge 12-4 Enterprise Storage Section 12-4 Review Test Your Knowledge Summary Questions and Problems Certification Questions CHAPTER 13 Codes and Standards Chapter Outline Objectives Key Terms 13-1 Introduction 13-2 Safety Standards and Codes Design and Construction Requirements for Exit Routes (29 CFR 1910.36) Maintenance, Safeguards, and Operational Features for Exit Routes (29 CFR 1910.37) Emergency Action Plans (29 CFR 1910.38) Fire Prevention Plans (29 CFR 1910.39) Portable Fire Extinguishers (29 CFR 1910.157) Fixed Extinguishing Systems (29 CFR 1910.160) Fire Detection Systems (29 CFR 1910.164) Employee Alarm Systems (29 CFR 1910.165) Hazard Communication (29 CFR 1910.1200) HVAC Systems Door Access Section 13-2 Review Test Your Knowledge 13-3 Industry Regulatory Compliance FERPA FISMA GDPR GLBA HIPAA PCI DSS International Export Controls Section 13-3 Review Test Your Knowledge 13-4 Business Policies, Procedures, and Other Best Practices Memorandum of Understanding Service-Level Agreement Master Service Agreement Master License Agreement Non-Disclosure Agreement Statement of Work Acceptable Use Policy Incident Response Policy Password Policy Privileged User Agreement Standard Operating Procedure Onboarding and Offboarding Policies Other Best Practices Section 13-4 Review Test Your Knowledge 13-5 Business Continuity and Disaster Recovery Section 13-5 Review Test Your Knowledge Summary Questions and Problems Certification Questions Glossary A B C D E F G H I J K L M N O P R S T U V W X Z Index A B C D E F G H I J K L M N O P Q-R S T U V W X Y Z