Introduction to Networks Course Booklet (CCNAv7)

Author:   Cisco Networking Academy ,  Allan Johnson
Publisher:   Pearson Education (US)
ISBN:  

9780136632955


Pages:   360
Publication Date:   18 August 2020
Format:   Mixed media product
Availability:   In Print   Availability explained
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Introduction to Networks Course Booklet (CCNAv7)


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Overview

Your Cisco Networking Academy (R) Course Booklet is designed as a study resource you can easily read, highlight, and review on the go, wherever the Internet is not available or practical: The text is extracted directly, word-for-word, from the online course so you can highlight important points and take notes in the Your Chapter Notes section. Headings with the exact page correlations provide a quick reference to the online course for your classroom discussions and exam preparation. An icon system directs you to the online curriculum to take full advantage of the images embedded within the Networking Academy online course interface and reminds you to do the labs, interactive activities, packet tracer activities, watch videos, and take the chapter quizzes.

Full Product Details

Author:   Cisco Networking Academy ,  Allan Johnson
Publisher:   Pearson Education (US)
Imprint:   Cisco Press
Dimensions:   Width: 21.60cm , Height: 2.20cm , Length: 27.60cm
Weight:   0.880kg
ISBN:  

9780136632955


ISBN 10:   0136632955
Pages:   360
Publication Date:   18 August 2020
Audience:   College/higher education ,  Tertiary & Higher Education
Format:   Mixed media product
Publisher's Status:   Active
Availability:   In Print   Availability explained
This item will be ordered in for you from one of our suppliers. Upon receipt, we will promptly dispatch it out to you. For in store availability, please contact us.

Table of Contents

Introduction xxxi Chapter 1 Networking Today 1 Introduction - 1.0 1 Why should I take this module? - 1.0.1 1 What will I learn to do in this module? - 1.0.2 1 Networks Affect our Lives - 1.1 2 Networks Connect Us - 1.1.1 2 Video - The Cisco Networking Academy Learning Experience - 1.1.2 2 No Boundaries - 1.1.3 2 Network Components - 1.2 2 Host Roles - 1.2.1 2 Peer-to-Peer - 1.2.2 3 End Devices - 1.2.3 3 Intermediary Devices - 1.2.4 4 Network Media - 1.2.5 4 Check Your Understanding - Network Components - 1.2.6 4 Network Representations and Topologies - 1.3 4 Network Representations - 1.3.1 4 Topology Diagrams - 1.3.2 5 Physical Topology Diagrams 5 Logical Topology Diagrams 5 Check Your Understanding - Network Representations and Topologies - 1.3.3 5 Common Types of Networks - 1.4 5 Networks of Many Sizes - 1.4.1 5 Small Home Networks 6 Small Office and Home Office Networks 6 Medium to Large Networks 6 World Wide Networks 6 LANs and WANs - 1.4.2 6 LANs 7 WANs 7 The Internet - 1.4.3 7 Intranets and Extranets - 1.4.4 8 Check Your Understanding - Common Types of Networks - 1.4.5 8 Internet Connections - 1.5 8 Internet Access Technologies - 1.5.1 8 Home and Small Office Internet Connections - 1.5.2 8 Businesses Internet Connections - 1.5.3 9 The Converging Network - 1.5.4 9 Traditional Separate Networks 9 Converged Networks 10 Video - Download and Install Packet Tracer - 1.5.5 10 Video - Getting Started in Cisco Packet Tracer - 1.5.6 11 Packet Tracer - Network Representation - 1.5.7 11 Reliable Networks - 1.6 11 Network Architecture - 1.6.1 11 Fault Tolerance - 1.6.2 12 Scalability - 1.6.3 12 Quality of Service - 1.6.4 12 Network Security - 1.6.5 13 Check Your Understanding - Reliable Networks - 1.6.6 13 Network Trends - 1.7 13 Recent Trends - 1.7.1 13 Bring Your Own Device (BYOD) - 1.7.2 14 Online Collaboration - 1.7.3 14 Video Communications - 1.7.4 14 Video - Cisco Webex for Huddles - 1.7.5 14 Cloud Computing - 1.7.6 14 Cloud Types 15 Technology Trends in the Home - 1.7.7 15 Powerline Networking - 1.7.8 16 Wireless Broadband - 1.7.9 16 Wireless Internet Service Provider 16 Wireless Broadband Service 17 Check Your Understanding - Network Trends - 1.7.10 17 Network Security - 1.8 17 Security Threats - 1.8.1 17 Security Solutions - 1.8.2 18 Check Your Understanding - Network Security - 1.8.3 19 The IT Professional - 1.9 19 CCNA - 1.9.1 19 Networking Jobs - 1.9.2 19 Lab - Research IT and Networking Job Opportunities - 1.9.3 19 Module Practice and Quiz - 1.10 20 What did I learn in this module? - 1.10.1 20 Networks Affect our Lives 20 Network Components 20 Network Representations and Topologies 20 Common Types of Networks 20 Internet Connections 21 Reliable Networks 21 Network Trends 21 Network Security 21 The IT Professional 22 Chapter Quiz - Networking Today 23 Your Chapter Notes 23 Chapter 2 Basic Switch and End Device Configuration 25 Introduction - 2.0 25 Why should I take this module? - 2.0.1 25 What will I learn to do in this module? - 2.0.2 25 Cisco IOS Access - 2.1 25 Operating Systems - 2.1.1 25 GUI - 2.1.2 26 Purpose of an OS - 2.1.3 26 Access Methods - 2.1.4 27 Terminal Emulation Programs - 2.1.5 27 PuTTY 28 Tera Term 28 SecureCRT 28 Check Your Understanding - Cisco IOS Access - 2.1.6 28 IOS Navigation - 2.2 28 Primary Command Modes - 2.2.1 28 Configuration Mode and Subconfiguration Modes - 2.2.2 28 Video - IOS CLI Primary Command Modes - 2.2.3 29 Navigate Between IOS Modes - 2.2.4 29 Video - Navigate Between IOS Modes - 2.2.5 30 A Note About Syntax Checker Activities - 2.2.6 30 Syntax Checker - Navigate Between IOS Modes - 2.2.7 30 Check Your Understanding - IOS Navigation - 2.2.8 30 The Command Structure - 2.3 30 Basic IOS Command Structure - 2.3.1 30 IOS Command Syntax Check - 2.3.2 31 IOS Help Features - 2.3.3 31 Video - Context Sensitive Help and Command Syntax Check - 2.3.4 32 Hot Keys and Shortcuts - 2.3.5 32 Video - Hot Keys and Shortcuts - 2.3.6 33 Packet Tracer - Navigate the IOS - 2.3.7 33 Lab - Navigate the IOS by Using Tera Term for Console Connectivity - 2.3.8 33 Basic Device Configuration - 2.4 34 Device Names - 2.4.1 34 Password Guidelines - 2.4.2 35 Configure Passwords - 2.4.3 35 Encrypt Passwords - 2.4.4 36 Banner Messages - 2.4.5 37 Video - Secure Administrative Access to a Switch - 2.4.6 37 Syntax Checker - Basic Device Configuration - 2.4.7 37 Check Your Understanding - Basic Device Configuration - 2.4.8 38 Save Configurations - 2.5 38 Configuration Files - 2.5.1 38 Alter the Running Configuration - 2.5.2 39 Video - Alter the Running Configuration - 2.5.3 39 Capture Configuration to a Text File - 2.5.4 39 Packet Tracer - Configure Initial Switch Settings - 2.5.5 40 Ports and Addresses - 2.6 40 IP Addresses - 2.6.1 40 Interfaces and Ports - 2.6.2 41 Check Your Understanding - Ports and Addresses - 2.6.3 42 Configure IP Addressing - 2.7 42 Manual IP Address Configuration for End Devices - 2.7.1 42 Automatic IP Address Configuration for End Devices - 2.7.2 42 Syntax Checker - Verify Windows PC IP Configuration - 2.7.3 43 Switch Virtual Interface Configuration - 2.7.4 43 Syntax Checker - Configure a Switch Virtual Interface - 2.7.5 43 Packet Tracer - Implement Basic Connectivity - 2.7.6 43 Verify Connectivity - 2.8 43 Video Activity - Test the Interface Assignment - 2.8.1 43 Follow Along in Packet Tracer 44 Video Activity - Test End-to-End Connectivity - 2.8.2 44 Follow Along in Packet Tracer 44 Module Practice and Quiz - 2.9 44 Packet Tracer - Basic Switch and End Device Configuration - 2.9.1 44 Lab - Basic Switch and End Device Configuration - 2.9.2 44 What did I learn in this module? - 2.9.3 44 Chapter Quiz - Basic Switch and End Device Configuration 46 Your Chapter Notes 46 Chapter 3 Protocols and Models 47 Introduction - 3.0 47 Why should I take this module? - 3.0.1 47 What will I learn to do in this module? - 3.0.2 47 Class Activity - Design a Communications System - 3.0.3 47 The Rules - 3.1 48 Video - Devices in a Bubble - 3.1.1 48 Communications Fundamentals - 3.1.2 48 Communication Protocols - 3.1.3 48 Analogy 49 Network 49 Rule Establishment - 3.1.4 49 Network Protocol Requirements - 3.1.5 50 Message Encoding - 3.1.6 50 Analogy 50 Network 50 Message Formatting and Encapsulation - 3.1.7 50 Analogy 51 Network 51 Message Size - 3.1.8 51 Analogy 51 Network 51 Message Timing - 3.1.9 52 Message Delivery Options - 3.1.10 52 Analogy 52 Network 52 A Note About the Node Icon - 3.1.11 53 Check Your Understanding - The Rules - 3.1.12 53 Protocols - 3.2 53 Network Protocol Overview - 3.2.1 53 Network Protocol Functions - 3.2.2 53 Protocol Interaction - 3.2.3 54 Check Your Understanding - Protocols - 3.2.4 54 Protocol Suites - 3.3 54 Network Protocol Suites - 3.3.1 54 Evolution of Protocol Suites - 3.3.2 55 TCP/IP Protocol Example - 3.3.3 55 TCP/IP Protocol Suite - 3.3.4 55 Application Layer 55 Transport layer 56 Internet Layer 57 Network Access Layer 57 TCP/IP Communication Process - 3.3.5 58 Check Your Understanding - Protocol Suites - 3.3.6 58 Standards Organizations - 3.4 58 Open Standards - 3.4.1 58 Internet Standards - 3.4.2 59 Electronic and Communications Standards - 3.4.3 59 Lab - Research Networking Standards - 3.4.4 59 Check Your Understanding - Standards Organizations 60 Reference Models - 3.5 60 The Benefits of Using a Layered Model - 3.5.1 60 The OSI Reference Model - 3.5.2 60 The TCP/IP Protocol Model - 3.5.3 61 OSI and TCP/IP Model Comparison - 3.5.4 61 Packet Tracer - Investigate the TCP/IP and OSI Models in Action - 3.5.5 62 Data Encapsulation - 3.6 62 Segmenting Messages - 3.6.1 62 Sequencing - 3.6.2 63 Protocol Data Units - 3.6.3 63 Encapsulation Example - 3.6.4 63 De-encapsulation Example - 3.6.5 64 Check Your Understanding - Data Encapsulation - 3.6.6 64 Data Access - 3.7 64 Addresses - 3.7.1 64 Layer 3 Logical Address - 3.7.2 64 Devices on the Same Network - 3.7.3 65 Role of the Data Link Layer Addresses: Same IP Network - 3.7.4 65 Devices on a Remote Network - 3.7.5 66 Role of the Network Layer Addresses - 3.7.6 66 Role of the Data Link Layer Addresses: Different IP Networks - 3.7.7 66 Data Link Addresses - 3.7.8 67 Host to Router 67 Router to Router 67 Router to Server 67 Lab - Install Wireshark - 3.7.9 67 Lab - Use Wireshark to View Network Traffic - 3.7.10 67 Check Your Understanding - Data Access 3.7.11 68 Module Practice and Quiz - 3.8 68 What did I learn in this module? - 3.8.1 68 The Rules 68 Protocols 68 Protocol Suites 68 Standards Organizations 69 Reference Models 69 Data Encapsulation 69 Data Access 70 Chapter Quiz - Protocols and Models 71 Your Chapter Notes 71 Chapter 4 Physical Layer 73 Introduction - 4.0 73 Why should I take this module? - 4.0.1 73 What will I learn to do in this module? - 4.0.2 73 Purpose of the Physical Layer - 4.1 73 The Physical Connection - 4.1.1 73 Network Interface Cards 74 The Physical Layer - 4.1.2 74 Check Your Understanding - Purpose of the Physical Layer - 4.1.3 74 Physical Layer Characteristics - 4.2 74 Physical Layer Standards - 4.2.1 74 Physical Components - 4.2.2 75 Physical Components 75 Encoding - 4.2.3 76 Signaling - 4.2.4 76 Copper Cable 76 Fiber Optic Cable 76 Wireless Media 76 Bandwidth - 4.2.5 76 Bandwidth Terminology - 4.2.6 77 Latency 77 Throughput 77 Goodput 78 Check Your Understanding - Physical Layer Characteristics - 4.2.7 78 Copper Cabling - 4.3 78 Characteristics of Copper Cabling - 4.3.1 78 Types of Copper Cabling - 4.3.2 79 Unshielded twisted-pair (UTP) - 4.3.3 79 Shielded twisted-pair (STP) - 4.3.4 79 Coaxial cable - 4.3.5 79 Check Your Understanding - Copper Cabling - 4.3.6 80 UTP Cabling - 4.4 80 Properties of UTP Cabling - 4.4.1 80 UTP Cabling Standards and Connectors - 4.4.2 81 Straight-through and Crossover UTP Cables - 4.4.3 82 Cable Types and Standards 82 Activity - Cable Pinouts - 4.4.4 83 Fiber-Optic Cabling - 4.5 83 Properties of Fiber-Optic Cabling - 4.5.1 83 Types of Fiber Media - 4.5.2 83 Single-Mode Fiber 83 Multimode Fiber 83 Fiber-Optic Cabling Usage - 4.5.3 84 Fiber-Optic Connectors - 4.5.4 84 Straight-Tip (ST) Connectors 84 Subscriber Connector (SC) Connectors 84 Lucent Connector (LC) Simplex Connectors 84 Duplex Multimode LC Connectors 85 Fiber Patch Cords - 4.5.5 85 SC-SC Multimode Patch Cord 85 LC-LC Single-mode Patch Cord 85 ST-LC Multimode Patch Cord 85 SC-ST Single-mode Patch Cord 85 Fiber versus Copper - 4.5.6 85 UTP and Fiber-Optic Cabling Comparison 85 Check Your Understanding - Fiber-Optic Cabling - 4.5.7 86 Wireless Media - 4.6 86 Properties of Wireless Media - 4.6.1 86 Types of Wireless Media - 4.6.2 87 Wireless LAN - 4.6.3 87 Check Your Understanding - Wireless Media - 4.6.4 88 Packet Tracer - Connect a Wired and Wireless LAN - 4.6.5 88 Lab - View Wired and Wireless NIC Information - 4.6.6 88 Module Practice and Quiz - 4.7 88 Packet Tracer - Connect the Physical Layer - 4.7.1 88 What did I learn in this module? - 4.7.2 88 Purpose of the Physical Layer 88 Physical Layer Characteristics 89 Copper Cabling 89 UTP Cabling 89 Fiber-Optic Cabling 89 Wireless Media 90 Chapter Quiz - Physical Layer 91 Your Chapter Notes 91 Chapter 5 Number Systems 93 Introduction - 5.0 93 Why should I take this module? - 5.0.1 93 What will I learn to do in this module? - 5.0.2 93 Binary Number System - 5.1 93 Binary and IPv4 Addresses - 5.1.1 93 Video - Converting Between Binary and Decimal Numbering Systems - 5.1.2 94 Binary Positional Notation - 5.1.3 94 Check Your Understanding - Binary Number System - 5.1.4 95 Convert Binary to Decimal - 5.1.5 95 Activity - Binary to Decimal Conversions - 5.1.6 96 Decimal to Binary Conversion - 5.1.7 97 128 97 64 97 32 97 16 97 8 97 4 98 2 98 1 98 Decimal to Binary Conversion Example - 5.1.8 98 Step 1 98 Step 2 99 Step 3 99 Step 4 99 Step 5 99 Step 6 99 Step 7 99 Step 8 99 Step 9 99 Step 10 99 Step 11 99 Activity - Decimal to Binary Conversions - 5.1.9 100 Activity - Binary Game - 5.1.10 100 IPv4 Addresses - 5.1.11 100 Dotted Decimal Address 100 Octets 100 32-bit Address 100 Hexadecimal Number System - 5.2 100 Hexadecimal and IPv6 Addresses - 5.2.1 100 Video - Converting Between Hexadecimal and Decimal Numbering Systems - 5.2.2 101 Decimal to Hexadecimal Conversions - 5.2.3 101 Hexadecimal to Decimal Conversion - 5.2.4 101 Check Your Understanding - Hexadecimal Number System - 5.2.5 102 Module Practice and Quiz 102 What did I learn in this module? - 5.3.1 102 Binary Number System 102 Hexadecimal Number System 102 Chapter Quiz - Number Systems 103 Your Chapter Notes 103 Chapter 6 Data Link Layer 105 Introduction - 6.0 105 Why should I take this module? - 6.0.1 105 What will I learn to do in this module? - 6.0.2 105 Purpose of the Data Link Layer - 6.1 105 The Data Link Layer - 6.1.1 105 IEEE 802 LAN/MAN Data Link Sublayers - 6.1.2 106 Providing Access to Media - 6.1.3 107 Data Link Layer Standards - 6.1.4 107 Check Your Understanding - Purpose of the Data Link Layer - 6.1.5 108 Topologies - 6.2 108 Physical and Logical Topologies - 6.2.1 108 WAN Topologies - 6.2.2 108 Point-to-Point 108 Hub and Spoke 108 Mesh 109 Point-to-Point WAN Topology - 6.2.3 109 LAN Topologies - 6.2.4 109 Legacy LAN Topologies 109 Half and Full Duplex Communication - 6.2.5 110 Half-duplex communication 110 Full-duplex communication 110 Access Control Methods - 6.2.6 110 Contention-based access 110 Controlled access 111 Contention-Based Access - CSMA/CD - 6.2.7 111 PC1 Sends a Frame 111 The Hub Receives the Frame 112 The Hub Sends the Frame 112 Contention-Based Access - CSMA/CA - 6.2.8 112 Check Your Understanding - Topologies - 6.2.9 112 Data Link Frame - 6.3 112 The Frame - 6.3.1 112 Frame Fields - 6.3.2 113 Layer 2 Addresses - 6.3.3 114 Host-to-Router 114 Router-to-Router 114 Router-to-Host 114 LAN and WAN Frames - 6.3.4 115 Check Your Understanding - Data Link Frame - 6.3.5 116 Module Practice and Quiz - 6.4 116 What did I learn in this module? - 6.4.1 116 Purpose of the Data Link Layer 116 Topologies 116 Data Link Frame 116 Chapter Quiz - Data Link Layer 118 Your Chapter Notes 118 Chapter 7 Ethernet Switching 119 Introduction - 7.0 119 Why should I take this module? - 7.0.1 119 What will I learn to do in this module? - 7.0.2 119 Ethernet Frames - 7.1 119 Ethernet Encapsulation - 7.1.1 119 Data Link Sublayers - 7.1.2 120 MAC Sublayer - 7.1.3 120 Data Encapsulation 120 Accessing the Media 121 Ethernet Frame Fields - 7.1.4 121 Ethernet Frame Fields Detail 121 Check Your Understanding - Ethernet Switching - 7.1.5 122 Lab - Use Wireshark to Examine Ethernet Frames - 7.1.6 122 Ethernet MAC Address - 7.2 122 MAC Address and Hexadecimal - 7.2.1 122 Ethernet MAC Address - 7.2.2 123 Frame Processing - 7.2.3 123 Unicast MAC Address - 7.2.4 124 Broadcast MAC Address - 7.2.5 124 Multicast MAC Address - 7.2.6 125 Lab - View Network Device MAC Addresses - 7.2.7 126 The MAC Address Table - 7.3 126 Switch Fundamentals - 7.3.1 126 Switch Learning and Forwarding - 7.3.2 126 Learn 127 Forward 127 Filtering Frames - 7.3.3 127 PC-D to Switch 127 Switch to PC-A 128 PC-A to Switch to PC-D 128 Video - MAC Address Tables on Connected Switches - 7.3.4 128 Video - Sending the Frame to the Default Gateway - 7.3.5 128 Activity - Switch It! - 7.3.6 128 Lab - View the Switch MAC Address Table - 7.3.7 128 Switch Speeds and Forwarding Methods - 7.4 129 Frame Forwarding Methods on Cisco Switches - 7.4.1 129 Cut-Through Switching - 7.4.2 129 Memory Buffering on Switches - 7.4.3 130 Memory Buffering Methods 130 Duplex and Speed Settings - 7.4.4 131 Auto-MDIX - 7.4.5 131 Check Your Understanding - Switch Speeds and Forwarding Methods - 7.4.6 132 Module Practice and Quiz - 7.5 132 What did I learn in this module? - 7.5.1 132 Ethernet Frame 132 Ethernet MAC Address 132 The MAC Address Table 132 Switch Speeds and Forwarding Methods 133 Chapter Quiz - Ethernet Switching 134 Your Chapter Notes 134 Chapter 8 Network Layer 135 Introduction - 8.0 135 Why should I take this module? - 8.0.1 135 What will I learn to do in this module? - 8.0.2 135 Network Layer Characteristics - 8.1 135 The Network Layer - 8.1.1 135 IP Encapsulation - 8.1.2 136 Characteristics of IP - 8.1.3 137 Connectionless - 8.1.4 137 Best Effort - 8.1.5 137 Media Independent - 8.1.6 137 Check Your Understanding - IP Characteristics - 8.1.7 138 IPv4 Packet - 8.2 138 IPv4 Packet Header - 8.2.1 138 IPv4 Packet Header Fields - 8.2.2 138 Video - Sample IPv4 Headers in Wireshark - 8.2.3 139 Check Your Understanding - IPv4 Packet - 8.2.4 139 IPv6 Packet - 8.3 139 Limitations of IPv4 - 8.3.1 139 IPv6 Overview - 8.3.2 139 IPv4 Packet Header Fields in the IPv6 Packet Header - 8.3.3 140 IPv6 Packet Header - 8.3.4 140 Video - Sample IPv6 Headers in Wireshark - 8.3.5 140 Check Your Understanding - IPv6 Packet - 8.3.6 141 How a Host Routes - 8.4 141 Host Forwarding Decision - 8.4.1 141 Default Gateway - 8.4.2 142 A Host Routes to the Default Gateway - 8.4.3 142 Host Routing Tables - 8.4.4 142 IPv4 Routing Table for PC1 142 Check Your Understanding - How a Host Routes - 8.4.5 143 Introduction to Routing - 8.5 143 Router Packet Forwarding Decision - 8.5.1 143 R1 Routing Table 144 IP Router Routing Table - 8.5.2 144 Static Routing - 8.5.3 144 Dynamic Routing - 8.5.4 145 Video- IPv4 Router Routing Tables - 8.5.5 146 Introduction to an IPv4 Routing Table - 8.5.6 146 Check Your Understanding - Introduction to Routing - 8.5.7 147 Module Practice and Quiz - 8.6 147 What did I learn in this module? - 8.6.1 147 Network Layer Characteristics 147 IPv4 Packet 148 IPv6 Packet 148 How a Host Routes 148 Introduction to Routing 148 Chapter Quiz - Network Layer 150 Your Chapter Notes 150 Chapter 9 Address Resolution 151 Introduction - 9.0 151 Why should I take this module? - 9.0.1 151 What will I learn to do in this module? - 9.0.2 151 MAC and IP - 9.1 151 Destination on Same Network - 9.1.1 151 Destination on Remote Network - 9.1.2 152 Packet Tracer - Identify MAC and IP Addresses - 9.1.3 153 Check Your Understanding - MAC and IP - 9.1.4 153 ARP - 9.2 153 ARP Overview - 9.2.1 153 ARP Functions - 9.2.2 153 Video - ARP Request - 9.2.3 154 Video - ARP Operation - ARP Reply - 9.2.4 155 Video - ARP Role in Remote Communications - 9.2.5 155 Removing Entries from an ARP Table - 9.2.6 156 ARP Tables on Networking Devices - 9.2.7 156 ARP Issues - ARP Broadcasts and ARP Spoofing - 9.2.8 157 Packet Tracer - Examine the ARP Table - 9.2.9 157 Check Your Understanding - ARP - 9.2.10 157 IPv6 Neighbor Discovery - 9.3 157 Video - IPv6 Neighbor Discovery - 9.3.1 157 IPv6 Neighbor Discovery Messages - 9.3.2 157 IPv6 Neighbor Discovery - Address Resolution - 9.3.3 158 Packet Tracer - IPv6 Neighbor Discovery - 9.3.4 158 Check Your Understanding - Neighbor Discovery - 9.3.5 159 Module Practice and Quiz - 9.4 159 What did I learn in this module? - 9.4.1 159 MAC and IP 159 ARP 159 Neighbor Discovery 159 Chapter Quiz - Address Resolution 160 Your Chapter Notes 160 Chapter 10 Basic Router Configuration 161 Introduction - 10.0 161 Why should I take this module? - 10.0.1 161 What will I learn in this module? - 10.0.2 161 Configure Initial Router Settings - 10.1 161 Basic Router Configuration Steps - 10.1.1 161 Basic Router Configuration Example - 10.1.2 162 Syntax Checker - Configure Initial Router Settings - 10.1.3 164 Packet Tracer - Configure Initial Router Settings - 10.1.4 164 Configure Interfaces - 10.2 164 Configure Router Interfaces - 10.2.1 164 Configure Router Interfaces Example - 10.2.2 165 Verify Interface Configuration - 10.2.3 166 Configuration Verification Commands - 10.2.4 167 show ip interface brief 167 show ipv6 interface brief 167 show ip route 168 show ipv6 route 168 show interfaces 169 show ip interface 170 show ipv6 interface 171 Syntax Checker - Configure Interfaces - 10.2.5 172 Configure the Default Gateway - 10.3 172 Default Gateway on a Host - 10.3.1 172 Default Gateway on a Switch - 10.3.2 172 Syntax Checker - Configure the Default Gateway - 10.3.3 173 Packet Tracer - Connect a Router to a LAN - 10.3.4 173 Packet Tracer - Troubleshoot Default Gateway Issues - 10.3.5 173 Module Practice and Quiz - 10.4 174 Video - Network Device Differences: Part 1 - 10.4.1 174 Video - Network Device Differences: Part 2 - 10.4.2 174 Packet Tracer - Basic Device Configuration - 10.4.3 174 Lab - Build a Switch and Router Network - 10.4.4 174 What did I learn in this module? - 10.4.5 174 Configure Initial Router Settings 174 Configure Interfaces 175 Configure the Default Gateway 175 Chapter Quiz - Basic Router Configuration 176 Your Chapter Notes 176 Chapter 11 IPv4 Addressing 177 Introduction - 11.0 177 Why should I take this module? - 11.0.1 177 What will I learn to do in this module? - 11.0.2 177 IPv4 Address Structure - 11.1 178 Network and Host Portions - 11.1.1 178 The Subnet Mask - 11.1.2 178 The Prefix Length - 11.1.3 178 Comparing the Subnet Mask and Prefix Length 179 Determining the Network: Logical AND - 11.1.4 179 Video - Network, Host and Broadcast Addresses - 11.1.5 180 Network, Host, and Broadcast Addresses - 11.1.6 180 Network address 180 Network, Host, and Broadcast Addresses 181 Activity - ANDing to Determine the Network Address - 11.1.7 182 Check Your Understanding - IPv4 Address Structure - 11.1.8 182 IPv4 Unicast, Broadcast, and Multicast - 11.2 182 Unicast - 11.2.1 182 Broadcast - 11.2.2 182 IP Directed Broadcasts 183 Multicast - 11.2.3 183 Activity - Unicast, Broadcast, or Multicast - 11.2.4 183 Types of IPv4 Addresses - 11.3 184 Public and Private IPv4 Addresses - 11.3.1 184 The Private Address Blocks 184 Routing to the Internet - 11.3.2 184 Activity - Pass or Block IPv4 Addresses - 11.3.3 185 Special Use IPv4 Addresses - 11.3.4 185 Loopback addresses 185 Pinging the Loopback Interface 185 Link-Local addresses 186 Legacy Classful Addressing - 11.3.5 186 Assignment of IP Addresses - 11.3.6 187 Activity - Public or Private IPv4 Address - 11.3.7 187 Check Your Understanding - Types of IPv4 Addresses - 11.3.8 187 Network Segmentation - 11.4 187 Broadcast Domains and Segmentation - 11.4.1 187 Problems with Large Broadcast Domains - 11.4.2 188 Reasons for Segmenting Networks - 11.4.3 188 Location 189 Group or Function 189 Device Type 189 Check Your Understanding - Network Segmentation - 11.4.4 189 Subnet an IPv4 Network - 11.5 189 Subnet on an Octet Boundary - 11.5.1 189 Subnet Masks on Octet Boundaries 190 Subnetting Network 10.0.0.0/8 using a /16 190 Subnetting Network 10.0.0.0/8 using a /24 Prefix 191 Subnet within an Octet Boundary - 11.5.2 191 Subnet a /24 Network 191 Video - The Subnet Mask - 11.5.3 192 Video - Subnet with the Magic Number - 11.5.4 192 Packet Tracer - Subnet an IPv4 Network - 11.5.5 192 Subnet a Slash 16 and a Slash 8 Prefix - 11.6 192 Create Subnets with a Slash 16 prefix - 11.6.1 192 Subnet a /16 Network 193 Create 100 Subnets with a Slash 16 prefix - 11.6.2 193 Create 1000 Subnets with a Slash 8 prefix - 11.6.3 194 Video - Subnet Across Multiple Octets - 11.6.4 194 Activity - Calculate the Subnet Mask - 11.6.5 195 Lab - Calculate IPv4 Subnets - 11.6.6 195 Subnet to Meet Requirements - 11.7 195 Subnet Private versus Public IPv4 Address Space - 11.7.1 195 Subnetting Network 10.0.0.0/8 using a /16 195 Subnetting Network 10.0.0.0/8 using a /24 196 Minimize Unused Host IPv4 Addresses and Maximize Subnets - 11.7.2 197 Subnetting a /24 Network 197 Example: Efficient IPv4 Subnetting - 11.7.3 198 Activity - Determine the Number of Bits to Borrow - 11.7.4 198 Packet Tracer - Subnetting Scenario - 11.7.5 198 VLSM - 11.8 199 Video - VLSM Basics - 11.8.1 199 Video - VLSM Example - 11.8.2 199 IPv4 Address Conservation - 11.8.3 199 VLSM - 11.8.4 200 VLSM Topology Address Assignment - 11.8.5 201 Activity - VLSM Practice - 11.8.6 201 Structured Design - 11.9 201 IPv4 Network Address Planning - 11.9.1 201 Device Address Assignment - 11.9.2 202 Packet Tracer - VLSM Design and Implementation Practice - 11.9.3 203 Module Practice and Quiz - 11.10 203 Packet Tracer - Design and Implement a VLSM Addressing Scheme - 11.10.1 203 Lab - Design and Implement a VLSM Addressing Scheme - 11.10.2 203 What did I learn in this module? - 11.10.3 203 IPv4 Addressing Structure 203 IPv4 Unicast, Broadcast, and Multicast 204 Types of IPv4 Addresses 204 Network Segmentation 204 Subnet an IPv4 Network 204 Subnet a /16 and a /8 Prefix 205 Subnet to Meet Requirements 205 Variable Length Subnet Masking 205 Structured Design 205 Chapter Quiz - IPv4 Addressing 206 Your Chapter Notes 206 Chapter 12 IPv6 Addressing 207 Introduction - 12.0 207 Why should I take this module? - 12.0.1 207 What will I learn in this module? - 12.0.2 207 IPv4 Issues - 12.1 207 Need for IPv6 - 12.1.1 207 Internet of Things 208 IPv4 and IPv6 Coexistence - 12.1.2 208 Dual Stack 208 Tunneling 208 Translation 209 Check Your Understanding - IPv4 Issues - 12.1.3 209 IPv6 Address Representation - 12.2 209 IPv6 Addressing Formats - 12.2.1 209 Preferred Format 209 Rule 1 - Omit Leading Zeros - 12.2.2 210 Omitting Leading 0s 210 Rule 2 - Double Colon - 12.2.3 211 Omitting Leading 0s and All 0 Segments 211 Activity - IPv6 Address Representation - 12.2.4 212 IPv6 Address Types - 12.3 212 Unicast, Multicast, Anycast - 12.3.1 212 IPv6 Prefix Length - 12.3.2 213 Types of IPv6 Unicast Addresses - 12.3.3 213 A Note About the Unique Local Address - 12.3.4 213 IPv6 GUA - 12.3.5 214 IPv6 GUA Structure - 12.3.6 214 Global Routing Prefix 214 Subnet ID 215 Interface ID 215 IPv6 LLA - 12.3.7 215 Check Your Understanding - IPv6 Address Types - 12.3.8 216 GUA and LLA Static Configuration - 12.4 216 Static GUA Configuration on a Router - 12.4.1 216 IPv6 GUA Configuration on Router R1 217 Static GUA Configuration on a Windows Host - 12.4.2 217 Static Configuration of a Link-Local Unicast Address - 12.4.3 217 Syntax Checker - GUA and LLA Static Configuration - 12.4.4 218 Dynamic Addressing for IPv6 GUAs - 12.5 218 RS and RA Messages - 12.5.1 218 Method 1: SLAAC - 12.5.2 219 Method 2: SLAAC and Stateless DHCPv6 - 12.5.3 220 Method 3: Stateful DHCPv6 - 12.5.4 220 EUI-64 Process vs. Randomly Generated - 12.5.5 220 EUI-64 Process - 12.5.6 220 EUI-64 Generated Interface ID 221 Randomly Generated Interface IDs - 12.5.7 221 Random 64-bit Generated Interface ID 222 Check Your Understanding - Dynamic Addressing for IPv6 GUAs - 12.5.8 222 Dynamic Addressing for IPv6 LLAs - 12.6 222 Dynamic LLAs - 12.6.1 222 Dynamic LLAs on Windows - 12.6.2 222 EUI-64 Generated Interface ID 222 Random 64-bit Generated Interface ID 223 Dynamic LLAs on Cisco Routers - 12.6.3 223 IPv6 LLA Using EUI-64 on Router R1 223 Verify IPv6 Address Configuration - 12.6.4 224 show ipv6 interface brief 224 show ipv6 route 225 ping 226 Syntax Checker - Verify IPv6 Address Configuration - 12.6.5 226 Packet Tracer - Configure IPv6 Addressing - 12.6.6 226 IPv6 Multicast Addresses - 12.7 226 Assigned IPv6 Multicast Addresses - 12.7.1 226 Well-Known IPv6 Multicast Addresses - 12.7.2 227 Solicited-Node IPv6 Multicast Addresses - 12.7.3 227 Lab - Identify IPv6 Addresses - 12.7.4 227 Subnet an IPv6 Network - 12.8 227 Subnet Using the Subnet ID - 12.8.1 227 IPv6 Subnetting Example - 12.8.2 228 IPv6 Subnet Allocation - 12.8.3 228 Router Configured with IPv6 Subnets - 12.8.4 228 IPv6 Address Configuration on Router R1 228 Check Your Understanding - Subnet an IPv6 Network - 12.8.5 229 Module Practice and Quiz - 12.9 229 Packet Tracer - Implement a Subnetted IPv6 Addressing Scheme - 12.9.1 229 Lab - Configure IPv6 Addresses on Network Devices - 12.9.2 229 What did I learn in this module? - 12.9.3 229 IPv4 Issues 229 IPv6 Address Representation 229 IPv6 Address Types 230 GUA and LLA Static Configuration 230 Dynamic Addressing for IPv6 GUAs 230 Dynamic Addressing for IPv6 LLAs 231 IPv6 Multicast Addresses 231 Subnet an IPv6 Network 231 Chapter Quiz - IPv6 Addressing 232 Your Chapter Notes 232 Chapter 13 ICMP 233 Introduction - 13.0 233 Why should I take this module? - 13.0.1 233 What will I learn in this module? - 13.0.2 233 ICMP Messages - 13.1 233 ICMPv4 and ICMPv6 Messages - 13.1.1 233 Host Reachability - 13.1.2 234 Destination or Service Unreachable - 13.1.3 234 Time Exceeded - 13.1.4 234 ICMPv6 Messages - 13.1.5 235 RA Message 235 RS Message 235 NS Message 235 NA Message 236 Check Your Understanding - ICMP Messages - 13.1.6 236 Ping and Traceroute Tests - 13.2 236 Ping - Test Connectivity - 13.2.1 236 Ping the Loopback - 13.2.2 237 Ping the Default Gateway - 13.2.3 237 Ping a Remote Host - 13.2.4 237 Traceroute - Test the Path - 13.2.5 238 Round Trip Time (RTT) 238 IPv4 TTL and IPv6 Hop Limit 238 Packet Tracer - Verify IPv4 and IPv6 Addressing - 13.2.6 238 Packet Tracer - Use Ping and Traceroute to Test Network Connectivity - 13.2.7 238 Module Practice and Quiz - 13.3 239 Packet Tracer - Use ICMP to Test and Correct Network Connectivity - 13.3.1 239 Lab - Use Ping and Traceroute to Test Network Connectivity - 13.3.2 239 What did I learn in this module? - 13.3.3 239 ICMP Messages 239 Ping and Traceroute Testing 240 Chapter Quiz - ICMP 241 Your Chapter Notes 241 Chapter 14 Transport Layer 243 Introduction - 14.0 243 Why should I take this module? - 14.0.1 243 What will I learn to do in this module? - 14.0.2 243 Transportation of Data - 14.1 244 Role of the Transport Layer - 14.1.1 244 Transport Layer Responsibilities - 14.1.2 244 Tracking Individual Conversations 244 Segmenting Data and Reassembling Segments 244 Add Header Information 244 Identifying the Applications 245 Conversation Multiplexing 245 Transport Layer Protocols - 14.1.3 245 Transmission Control Protocol (TCP) - 14.1.4 245 User Datagram Protocol (UDP) - 14.1.5 246 The Right Transport Layer Protocol for the Right Application - 14.1.6 247 Check Your Understanding - Transportation of Data - 14.1.7 248 TCP Overview - 14.2 248 TCP Features - 14.2.1 248 TCP Header - 14.2.2 248 TCP Header Fields - 14.2.3 249 Applications that use TCP - 14.2.4 249 Check Your Understanding - TCP Overview - 14.2.5 249 UDP Overview - 14.3 249 UDP Features - 14.3.1 249 UDP Header - 14.3.2 250 UDP Header Fields - 14.3.3 250 Applications that use UDP - 14.3.4 250 Check Your Understanding - UDP Overview - 14.3.5 251 Port Numbers - 14.4 251 Multiple Separate Communications - 14.4.1 251 Socket Pairs - 14.4.2 251 Port Number Groups - 14.4.3 252 Well-Known Port Numbers 253 The netstat Command - 14.4.4 253 Check Your Understanding - Port Numbers - 14.4.5 254 TCP Communication Process - 14.5 254 TCP Server Processes - 14.5.1 254 Clients Sending TCP Requests 254 Request Destination Ports 254 Request Source Ports 254 Response Destination Ports 254 Response Source Ports 255 TCP Connection Establishment - 14.5.2 255 Step 1. SYN 255 Step 2. ACK and SYN 255 Step 3. ACK 255 Session Termination - 14.5.3 255 Step 1. FIN 255 Step 2. ACK 255 Step 3. FIN 255 Step 4. ACK 256 TCP Three-way Handshake Analysis - 14.5.4 256 Video - TCP 3-Way Handshake - 14.5.5 256 Check Your Understanding - TCP Communication Process - 14.5.6 257 Reliability and Flow Control - 14.6 257 TCP Reliability - Guaranteed and Ordered Delivery - 14.6.1 257 Video - TCP Reliability - Sequence Numbers and Acknowledgments - 14.6.2 257 TCP Reliability - Data Loss and Retransmission - 14.6.3 257 Video - TCP Reliability - Data Loss and Retransmission - 14.6.4 258 TCP Flow Control - Window Size and Acknowledgments - 14.6.5 258 TCP Flow Control - Maximum Segment Size (MSS) - 14.6.6 259 TCP Flow Control - Congestion Avoidance - 14.6.7 259 Check Your Understanding - Reliability and Flow Control - 14.6.8 260 UDP Communication - 14.7 260 UDP Low Overhead versus Reliability - 14.7.1 260 UDP Datagram Reassembly - 14.7.2 260 UDP Server Processes and Requests - 14.7.3 260 UDP Client Processes - 14.7.4 261 Clients Sending UDP Requests 261 UDP Request Destination Ports 261 UDP Request Source Ports 261 UDP Response Destination 261 UDP Response Source Ports 261 Check Your Understanding - UDP Communication - 14.7.5 261 Module Practice and Quiz - 14.8 261 Packet Tracer - TCP and UDP Communications - 14.8.1 261 What did I learn in this module? - 14.8.2 262 Transportation of Data 262 TCP Overview 262 UPD Overview 262 Port Numbers 262 TCP Communications Process 262 Reliability and Flow Control 263 UPD Communication 263 Chapter Quiz - Transport Layer 264 Your Chapter Notes 264 Chapter 15 Application Layer 265 Introduction - 15.0 265 Why should I take this module? - 15.0.1 265 What will I learn to do in this module? - 15.0.2 265 Application, Presentation, and Session - 15.1 265 Application Layer - 15.1.1 265 Presentation and Session Layer - 15.1.2 266 Presentation Layer 266 Session Layer 266 TCP/IP Application Layer Protocols - 15.1.3 266 Name System 266 Host Config 267 Email 267 File Transfer 267 Web 268 Check Your Understanding - Application, Session, Presentation - 15.1.4 268 Peer-to-Peer - 15.2 268 Client-Server Model - 15.2.1 268 Peer-to-Peer Networks - 15.2.2 269 Peer-to-Peer Applications - 15.2.3 269 Common P2P Applications - 15.2.4 269 Check Your Understanding - Peer-to-Peer - 15.2.5 270 Web and Email Protocols - 15.3 270 Hypertext Transfer Protocol and Hypertext Markup Language - 15.3.1 270 Step 1 270 Step 2 270 Step 3 271 Step 4 271 HTTP and HTTPS - 15.3.2 271 Email Protocols - 15.3.3 271 SMTP, POP, and IMAP - 15.3.4 272 SMTP 272 POP 272 IMAP 272 Check Your Understanding - Web and Email Protocols - 15.3.5 273 IP Addressing Services - 15.4 273 Domain Name Service - 15.4.1 273 Step 1 273 Step 2 273 Step 3 273 Step 4 273 Step 5 273 DNS Message Format - 15.4.2 274 DNS Hierarchy - 15.4.3 274 The nslookup Command - 15.4.4 275 Syntax Checker - The nslookup Command - 15.4.5 275 Dynamic Host Configuration Protocol - 15.4.6 275 DHCP Operation - 15.4.7 276 Lab - Observe DNS Resolution - 15.4.8 277 Check Your Understanding - IP Addressing Services - 15.4.9 277 File Sharing Services - 15.5 277 File Transfer Protocol - 15.5.1 277 Server Message Block - 15.5.2 277 Check Your Understanding - File Sharing Services - 15.5.3 278 Module Practice and Quiz - 15.6 278 What did I learn in this module? - 15.6.1 278 Application, Presentation, and Session 278 Peer-to-Peer 278 Web and Email Protocols 279 IP Addressing Services 279 File Sharing Services 279 Chapter Quiz - Application Layer 280 Your Chapter Notes 280 Chapter 16 Network Security Fundamentals 281 Introduction - 16.0 281 Why should I take this module? - 16.0.1 281 What will I learn to do in this module? - 16.0.2 281 Security Threats and Vulnerabilities - 16.1 281 Types of Threats - 16.1.1 281 Information Theft 282 Data Loss and Manipulation 282 Identity Theft 282 Disruption of Service 282 Types of Vulnerabilities - 16.1.2 282 Technological Vulnerabilities 283 Configuration Vulnerabilities 283 Policy Vulnerabilities 283 Physical Security - 16.1.3 283 Check Your Understanding - Security Threats and Vulnerabilities - 16.1.4 283 Network Attacks - 16.2 283 Types of Malware - 16.2.1 283 Viruses 283 Worms 284 Trojan Horses 284 Reconnaissance Attacks - 16.2.2 284 Internet Queries 285 Ping Sweeps 285 Port Scans 285 Access Attacks - 16.2.3 285 Password Attacks 285 Trust Exploitation 285 Port Redirection 285 Man-in-the-Middle 286 Denial of Service Attacks - 16.2.4 286 DoS Attack 286 DDoS Attack 286 Check Your Understanding - Network Attacks - 16.2.5 286 Lab - Research Network Security Threats - 16.2.6 286 Network Attack Mitigations - 16.3 286 The Defense-in-Depth Approach - 16.3.1 286 Keep Backups - 16.3.2 287 Upgrade, Update, and Patch - 16.3.3 287 Authentication, Authorization, and Accounting - 16.3.4 288 Firewalls - 16.3.5 288 Types of Firewalls - 16.3.6 288 Endpoint Security - 16.3.7 289 Check Your Understanding - Network Attack Mitigation - 16.3.8 289 Device Security - 16.4 289 Cisco AutoSecure - 16.4.1 289 Passwords - 16.4.2 290 Weak Passwords 290 Strong Passwords 290 Additional Password Security - 16.4.3 291 Enable SSH - 16.4.4 292 Disable Unused Services - 16.4.5 293 Packet Tracer - Configure Secure Passwords and SSH - 16.4.6 294 Lab - Configure Network Devices with SSH - 16.4.7 294 Module Practice and Quiz - 16.5 294 Packet Tracer - Secure Network Devices - 16.5.1 294 Lab - Secure Network Devices - 16.5.2 294 What did I learn in this module? - 16.5.3 294 Security Threats and Vulnerabilities 294 Network Attacks 294 Network Attack Mitigation 295 Device Security 295 Chapter Quiz - Network Security Fundamentals 296 Your Chapter Notes 296 Chapter 17 Build a Small Network 297 Introduction - 17.0 297 Why should I take this module? - 17.0.1 297 What will I learn to do in this module? - 17.0.2 297 Devices in a Small Network - 17.1 297 Small Network Topologies - 17.1.1 297 Device Selection for a Small Network - 17.1.2 298 Cost 298 Speed and Types of Ports/Interfaces 298 Expandability 298 Operating System Features and Services 299 IP Addressing for a Small Network - 17.1.3 299 Redundancy in a Small Network - 17.1.4 300 Traffic Management - 17.1.5 300 Check Your Understanding - Devices in a Small Network - 17.1.6 300 Small Network Applications and Protocols - 17.2 300 Common Applications - 17.2.1 300 Network Applications 301 Application Layer Services 301 Common Protocols - 17.2.2 301 Web Server 302 Email Server 302 FTP Server 302 DHCP Server 302 DNS Server 302 Voice and Video Applications - 17.2.3 303 Infrastructure 303 VoIP 303 IP Telephony 303 Real-Time Applications 303 Check Your Understanding - Small Network Applications and Protocols - 17.2.4 303 Scale to Larger Networks - 17.3 303 Small Network Growth - 17.3.1 303 Protocol Analysis - 17.3.2 304 Employee Network Utilization - 17.3.3 304 Check Your Understanding - Scale to Larger Networks - 17.3.4 305 Verify Connectivity - 17.4 305 Verify Connectivity with Ping - 17.4.1 305 IOS Ping Indicators 306 Extended Ping - 17.4.2 307 Verify Connectivity with Traceroute - 17.4.3 308 Extended Traceroute - 17.4.4 309 Network Baseline - 17.4.5 310 Lab - Test Network Latency with Ping and Traceroute - 17.4.6 312 Host and IOS Commands - 17.5 312 IP Configuration on a Windows Host - 17.5.1 312 IP Configuration on a Linux Host - 17.5.2 314 IP Configuration on a macOS Host - 17.5.3 315 The arp Command - 17.5.4 316 Common show Commands Revisited - 17.5.5 317 show running-config 317 show interfaces 318 show ip interface 319 show arp 320 show ip route 321 show protocols 321 show version 322 The show cdp neighbors Command - 17.5.6 323 The show ip interface brief Command - 17.5.7 324 Verify Switch Interfaces 324 Video - The show version Command - 17.5.8 325 Packet Tracer - Interpret show Command Output - 17.5.9 325 Troubleshooting Methodologies - 17.6 325 Basic Troubleshooting Approaches - 17.6.1 325 Resolve or Escalate? - 17.6.2 326 The debug Command - 17.6.3 326 The terminal monitor Command - 17.6.4 328 Check Your Understanding - Troubleshooting Methodologies - 17.6.5 329 Troubleshooting Scenarios - 17.7 329 Duplex Operation and Mismatch Issues - 17.7.1 329 IP Addressing Issues on IOS Devices - 17.7.2 330 IP Addressing Issues on End Devices - 17.7.3 330 Default Gateway Issues - 17.7.4 331 Troubleshooting DNS Issues - 17.7.5 332 Lab - Troubleshoot Connectivity Issues - 17.7.6 334 Packet Tracer - Troubleshoot Connectivity Issues - 17.7.7 334 Module Practice and Quiz - 17.8 335 Lab - Design and Build a Small Business Network - 17.8.1 335 Packet Tracer - Skills Integration Challenge - 17.8.2 335 Packet Tracer - Troubleshooting Challenge - 17.8.3 335 What did I learn in this module? - 17.8.4 335 Devices in a Small Network 335 Small Network Applications and Protocols 335 Scale to Larger Networks 336 Verify Connectivity 336 Host and IOS Commands 336 Troubleshooting Methodologies 337 Troubleshooting Scenarios 337 Chapter Quiz - Build a Small Network 338 Your Chapter Notes 338 9780136632955 TOC 6/15/2020

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