Introduction xxx Assessment Test lxvi Chapter 1 Introduction to Networks 1 First Things First: What''s a Network? 2 The Local Area Network 3 Common Network Components 5 Wide Area Network 7 Network Architecture: Peer-to-Peer or Client-Server? 9 Physical Network Topologies 11 Bus Topology 12 Star Topology 13 Ring Topology 14 Mesh Topology 15 Point-to-Point Topology 16 Point-to-Multipoint Topology 17 Hybrid Topology 18 Topology Selection, Backbones, and Segments 19 Selecting the Right Topology 19 The Network Backbone 20 Network Segments 21 CAN 21 SAN 21 Summary 21 Exam Essentials 22 Written Lab 22 Review Questions 23 Chapter 2 The Open Systems Interconnection Specifications 27 Internetworking Models 28 The Layered Approach 29 Advantages of Reference Models 29 The OSI Reference Model 30 The Application Layer 32 The Presentation Layer 33 The Session Layer 33 The Transport Layer 33 The Network Layer 40 The Data Link Layer 42 The Physical Layer 45 Introduction to Encapsulation 45 Modulation Techniques 46 Summary 47 Exam Essentials 48 Written Lab 48 Review Questions 50 Chapter 3 Networking Topologies, Connectors, and Wiring Standards 55 Physical Media 57 Coaxial Cable 58 Twisted-Pair Cable 60 Fiber-Optic Cable 64 Transceivers 69 Media Converters 69 Serial Cables 71 Cable Properties 73 Transmission Speeds 73 Distance 74 Duplex 74 Noise Immunity (Security, EMI) 74 Frequency 75 Wiring Standards 75 T568A vs. T568B 75 Straight-Through Cable 77 Crossover Cable 78 Rolled/Rollover Cable 80 T1 Crossover Cable 80 Installing Wiring Distributions 82 MDF/IDF 82 Summary 84 Exam Essentials 85 Written Lab 85 Review Questions 87 Chapter 4 The Current Ethernet Specifications 91 Network Basics 92 Ethernet Basics 94 Collision Domain 94 Broadcast Domain 94 CSMA/CD 95 Broadband/Baseband 96 Bit Rates vs. Baud Rate 97 Wavelength 97 Half- and Full-Duplex Ethernet 98 Ethernet at the Data Link Layer 99 Binary to Decimal and Hexadecimal Conversion 100 Ethernet Addressing 103 Ethernet Frames 104 Ethernet at the Physical Layer 106 Ethernet over Other Standards (IEEE 1905.1-2013) 111 Ethernet over Power Line 112 Ethernet over HDMI 113 Summary 114 Exam Essentials 115 Written Lab 115 Review Questions 120 Chapter 5 Networking Devices 125 Common Network Connectivity Devices 128 Network Interface Card 129 Hub 130 Bridge 131 Switch 131 Router 132 Firewall 136 IDS/IPS 137 HIDS 137 Access Point 138 Wireless Range Extender 138 Contention Methods 139 Dynamic Host Configuration Protocol Server 141 IPAM 146 Other Specialized Devices 146 Multilayer Switch 147 Load Balancer 147 Domain Name Service Server 148 Proxy Server 154 Encryption Devices 155 Analog Modem 156 Packet Shaper 157 VPN Concentrator 157 Media Converter 158 VoIP PBX 158 VoIP Endpoint 158 NGFW/Layer 7 Firewall 159 VoIP Gateway 159 Planning and Implementing a Basic SOHO Network Using Network Segmentation 159 Determining Requirements 159 Switches and Bridges at the Data Link Layer 166 Hubs at the Physical Layer 167 Environmental Considerations 168 Summary 169 Exam Essentials 169 Written Lab 170 Review Questions 171 Chapter 6 Introduction to the Internet Protocol 175 Introducing TCP/IP 177 A Brief History of TCP/IP 177 TCP/IP and the DoD Model 178 The Process/Application Layer Protocols 180 The Host-to-Host Layer Protocols 188 The Internet Layer Protocols 192 Data Encapsulation 198 Summary 202 Exam Essentials 202 Written Lab 203 Review Questions 204 Chapter 7 IP Addressing 209 IP Terminology 210 The Hierarchical IP Addressing Scheme 211 Network Addressing 212 Private IP Addresses (RFC 1918) 216 IPv4 Address Types 218 Layer 2 Broadcasts 219 Layer 3 Broadcasts 219 Unicast Address 219 Multicast Address (Class D) 219 Internet Protocol Version 6 (IPv6) 220 Why Do We Need IPv6? 220 The Benefits of and Uses for IPv6 221 IPv6 Addressing and Expressions 222 Shortened Expression 223 Address Types 224 Special Addresses 225 Stateless Autoconfiguration (EUI-64) 226 DHCPv6 (Stateful) 227 Migrating to IPv6 227 Summary 230 Exam Essentials 230 Written Labs 231 Written Lab 7.1 231 Written Lab 7.2 232 Written Lab 7.3 232 Review Questions 233 Chapter 8 IP Subnetting, Troubleshooting IP, and Introduction to NAT 237 Subnetting Basics 238 How to Create Subnets 239 Subnet Masks 240 Classless Inter-Domain Routing (CIDR) 241 Subnetting Class C Addresses 243 Subnetting Class B Addresses 253 Troubleshooting IP Addressing 260 Determining IP Address Problems 263 Introduction to Network Address Translation (NAT) 268 Types of Network Address Translation 269 NAT Names 269 How NAT Works 270 Summary 272 Exam Essentials 272 Written Lab 273 Review Questions 274 Chapter 9 Introduction to IP Routing 279 Routing Basics 280 The IP Routing Process 283 Testing Your IP Routing Understanding 289 Static and Dynamic Routing 291 Summary 294 Exam Essentials 294 Written Lab 294 Review Questions 296 Chapter 10 Routing Protocols 301 Routing Protocol Basics 302 Administrative Distances 303 Classes of Routing Protocols 305 Distance Vector Routing Protocols 306 Routing Information Protocol (RIP) 308 RIP Version 2 (RIPv2) 308 VLSM and Discontiguous Networks 309 EIGRP 312 Border Gateway Protocol (BGP) 314 Link State Routing Protocols 315 Open Shortest Path First (OSPF) 316 Intermediate System-to-Intermediate System (IS-IS) 318 High Availability 319 Hot Standby Router Protocol (HSRP) 321 Virtual Router Redundancy Protocol 325 Advanced IPv6 Concepts 326 Router Advertisement 326 Neighbor Discovery 328 Tunneling 329 Dual Stack 332 IPv6 Routing Protocols 332 RIPng 333 EIGRPv6 333 OSPFv3 333 Summary 334 Exam Essentials 334 Written Lab 335 Review Questions 336 Chapter 11 Switching and Virtual LANs 341 Networking Before Layer 2 Switching 343 Switching Services 346 Limitations of Layer 2 Switching 347 Bridging vs. LAN Switching 348 Three Switch Functions at Layer 2 348 Distributed Switching 354 Spanning Tree Protocol 354 Spanning Tree Port States 355 STP Convergence 356 Rapid Spanning Tree Protocol 802.

1w 357 Virtual LANs 358 VLAN Basics 359 Quality of Service 362 VLAN Memberships 363 Static VLANs 363 Dynamic VLANs 364 Identifying VLANs 364 VLAN Identification Methods 366 VLAN Trunking Protocol 367 VTP Modes of Operation 368 Do We Really Need to Put an IP Address on a Switch? 369 Switch Port Protection 372 Port Bonding 375 Device Hardening 376 Two Additional Advanced Features of Switches 376 Power over Ethernet (802.3af, 802.3at) 376 Port Mirroring/Spanning (SPAN/RSPAN) 379 Summary 380 Exam Essentials 381 Written Lab 381 Review Questions 383 Chapter 12 Wireless Networking 387 Introduction to Wireless Technology 390 Cellular 393 The 802.11 Standards 393 2.4 GHz (802.11b) 395 2.4 GHz (802.11g) 396 5 GHz (802.

11a) 397 5 GHz (802.11h) 397 2.4 GHz/5 GHz (802.11n) 398 5 GHz (802.11ac) 399 Comparing 802.11 Standards 399 Range Comparisons 400 Wireless Network Components 401 Wireless Access Points 401 Wireless Network Interface Card 402 Wireless Antennas 403 Installing a Wireless Network 405 Ad Hoc Mode: Independent Basic Service Set 405 Infrastructure Mode: Basic Service Set 406 Wireless Controllers 407 Mobile Hot Spots 409 Signal Degradation 410 Other Network Infrastructure Implementations 410 Technologies that facilitate the Internet of Things (IoT) 412 Installing and Configuring WLAN Hardware 412 Site Survey 418 Providing Capacity 418 Multiple Floors 420 Location-Based WLAN 421 Site Survey Tools 421 Wireless Security 422 Wireless Threats 422 Open Access 426 Service Set Identifiers, Wired Equivalent Privacy, and Media Access Control Address Authentication 426 Remote Authentication Dial-In User Service (802.1X) 427 Temporal Key Integrity Protocol 428 Wi-Fi Protected Access or WPA2 Pre-Shared Key 430 Summary 433 Exam Essentials 433 Written Lab 434 Review Questions 435 Chapter 13 Authentication and Access Control 439 Security Filtering.