Introduction to Networks Labs and Study Guide (CCNAv7), 1st Edition © 2020

 Introduction xxx 
CHAPTER 1 NETWORKING TODAY 1 
    Networks Affect Our Lives 2 
    Network Components 2 
    Network Representations and Topologies 4 
    Common Types of Networks 5 
    Internet Connections 6 
    Reliable Networks 8 
    Network Trends 9 
    Network Security 11 
    The IT Professional 12 
    1.5.7 Packet Tracer—Network Representation 13 
    1.9.3 Lab—Research IT and Networking Job Opportunities 16 
CHAPTER 2 BASIC SWITCH AND END DEVICE CONFIGURATION 19 
    Cisco IOS Access 20 
    IOS Navigation 21 
    The Command Structure 23 
    Basic Device Configuration 25 
    Save Configurations 27 
    Ports and Addresses 27 
    Configure IP Addressing 28 
    Verify Connectivity 30 
    Command Reference 32 
    2.3.7 Packet Tracer—Navigate the IOS 33 
    2.3.8 Lab—Navigate the IOS by Using Tera Term for Console Connectivity 38 
    2.5.5 Packet Tracer—Configure Initial Switch Settings 45 
    2.7.6 Packet Tracer—Implement Basic Connectivity 50 
    2.9.1 Packet Tracer—Basic Switch and End Device Configuration 53 
    2.9.2 Lab—Basic Switch and End Device Configuration 55 
CHAPTER 3 PROTOCOLS AND MODELS 59 
    The Rules 60 
        Protocols 61 
    Protocol Suites 63 
    Standards Organizations 66 
    Reference Models 68 
    Data Encapsulation 69 
    Data Access 71 
    3.0.3 Class Activity—Design a Communications System 73 
    3.4.4 Lab—Research Networking Standards 74 
    3.5.5 Packet Tracer—Investigate the TCP/IP and OSI Models in Action 77 
    3.7.9 Lab—Install Wireshark 82 
    3.7.10 Lab—Use Wireshark to View Network Traffic 84 
CHAPTER 4 PHYSICAL LAYER 91 
    Purpose of the Physical Layer 92 
    Physical Layer Characteristics 92 
    Copper Cabling 94 
    UTP Cabling 96 
    Fiber-Optic Cabling 97 
    Wireless Media 99 
    4.6.5 Packet Tracer—Connect a Wired and Wireless LAN 101 
    4.6.6 Lab—View Wired and Wireless NIC Information 105 
    4.7.1 Packet Tracer—Connect the Physical Layer 109 
CHAPTER 5 NUMBER SYSTEMS 115 
    Binary Number System 116 
    Hexadecimal Number System 118 
CHAPTER 6 DATA LINK LAYER 123 
    Purpose of the Data Link Layer 124 
    Topologies 126 
    Data Link Frame 128 
CHAPTER 7 ETHERNET SWITCHING 131 
    Ethernet Frames 132 
    Ethernet MAC Address 134 
    The MAC Address Table 135 
    Switch Speeds and Forwarding Methods 140 
    7.1.6 Lab—Use Wireshark to Examine Ethernet Frames 142 
    7.2.7 Lab—View Network Device MAC Addresses 149 
    7.3.7 Lab—View the Switch MAC Address Table 155 
CHAPTER 8 NETWORK LAYER 159 
    Network Layer Characteristics 160 
    IPv4 Packet 161 
    IPv6 Packet 163 
    How a Host Routes 164 
    Introduction to Routing 166 
CHAPTER 9 ADDRESS RESOLUTION 171 
    MAC and IP 172 
    ARP 173 
    IPv6 Neighbor Discovery 175 
    9.1.3 Packet Tracer—Identify MAC and IP Addresses 177 
    9.2.9 Packet Tracer—Examine the ARP Table 181 
    9.3.4 Packet Tracer—IPv6 Neighbor Discovery 185 
CHAPTER 10 BASIC ROUTER CONFIGURATION 191 
    Configure Initial Router Settings 192 
    Configure Interfaces 194 
    Configure the Default Gateway 196 
    Command Reference 197 
    10.1.4 Packet Tracer—Configure Initial Router Settings 198 
    10.3.4 Packet Tracer—Connect a Router to a LAN 202 
    10.3.5 Packet Tracer—Troubleshoot Default Gateway Issues 207 
    10.4.3 Packet Tracer—Basic Device Configuration 210 
    10.4.4 Lab—Build a Switch and Router Network 212 
CHAPTER 11 IPV4 ADDRESSING 219 
    IPv4 Address Structure 220 
    IPv4 Unicast, Broadcast, and Multicast 224 
    Types of IPv4 Addresses 224 
    Network Segmentation 226 
    Subnet an IPv4 Network 227 
    VLSM Addressing Schemes 231 
    11.5.5 Packet Tracer—Subnet an IPv4 Network 236 
    11.6.6 Lab—Calculate IPv4 Subnets 241 
    11.7.5 Packet Tracer—Subnetting Scenario 245 
    11.9.3 Packet Tracer—VLSM Design and Implementation Practice 249 
    11.10.1 Packet Tracer—Design and Implement a VLSM Addressing Scheme 253 
    11.10.2 Lab—Design and Implement a VLSM Addressing Scheme 255 
CHAPTER 12 IPV6 ADDRESSING 261 
    IPv4 Issues 262 
    IPv6 Address Representation 263 
    IPv6 Address Types 263 
    GUA and LLA Static Configuration 265 
    Dynamic Addressing for IPv6 GUAs 267 
    Dynamic Addressing for IPv6 LLAs 272 
    IPv6 Multicast Addresses 272 
    Subnet an IPv6 Network 272 
    12.6.6 Packet Tracer—Configure IPv6 Addressing 276 
    12.7.4 Lab—Identify IPv6 Addresses 280 
    12.9.1 Packet Tracer—Implement a Subnetted IPv6 Addressing Scheme 284 
    12.9.2 Lab—Configure IPv6 Addresses on Network Devices 286 
CHAPTER 13 ICMP 291 
    ICMP Messages 292 
    Ping and Traceroute Tests 296 
    Command Reference 297 
    13.2.6 Packet Tracer—Verify IPv4 and IPv6 Addressing 297 
    13.2.7 Packet Tracer—Use Ping and Traceroute to Test Network Connectivity 301 
    13.3.1 Packet Tracer—Use ICMP to Test and Correct Network Connectivity 305 
    13.3.2 Lab—Use Ping and Traceroute to Test Network Connectivity 307 
CHAPTER 14 TRANSPORT LAYER 319 
    Transportation of Data 320 
    TCP Overview 322 
    UDP Overview 325 
    Port Numbers 327 
    TCP Communication Process 329 
    Reliability and Flow Control 332 
    UDP Communication 334 
    Command Reference 336 
    14.8.1 Packet Tracer—TCP and UDP Communications 336 
CHAPTER 15 APPLICATION LAYER 343 
    Application, Presentation, and Session 344 
    Application Layer 344 
    Peer-to-Peer 346 
    Web and Email Protocols 347 
    IP Addressing Services 349 
    File Sharing Services 353 
    Command Reference 355 
    15.4.8 Lab—Observe DNS Resolution 355 
CHAPTER 16 NETWORK SECURITY FUNDAMENTALS 359 
    Security Threats and Vulnerabilities 360 
    Network Attacks 361 
    Network Attack Mitigation 364 
    Device Security 366 
    Command Reference 368 
    16.2.6 Lab—Research Network Security Threats 368 
    16.4.6 Packet Tracer—Configure Secure Passwords and SSH 372 
    16.4.7 Lab—Configure Network Devices with SSH 375 
    16.5.1 Packet Tracer—Secure Network Devices 381 
    16.5.1 Lab—Secure Network Devices 383 
CHAPTER 17 BUILD A SMALL NETWORK 389 
    Devices in a Small Network 390 
    Small Network Applications and Protocols 392 
    Scale to Larger Networks 394 
    Verify Connectivity 395 
    Host and IOS Commands 397 
    Troubleshooting Methodologies 402 
    Troubleshooting Scenarios 403 
    Command Reference 405 
    17.4.6 Lab—Test Network Latency with Ping and Traceroute 406 
    17.5.9 Packet Tracer—Interpret show Command Output 411 
    17.7.6 Lab—Troubleshoot Connectivity Issues 413 
    17.7.7 Packet Tracer—Troubleshoot Connectivity Issues 418 
    17.8.1 Lab—Design and Build a Small Network 422 
    17.8.2 Packet Tracer—Skills Integration Challenge 423 
    17.8.3 Packet Tracer—Troubleshooting Challenge 426