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Viser: Networking Essentials Companion Guide V3 - Cisco Certified Support Technician (CCST) Networking 100-150
Networking Essentials Companion Guide V3
Cisco Certified Support Technician (CCST) Networking 100-150
Cisco Networking Cisco Networking Academy
(2024)
Sprog: Engelsk
Cisco Press
662,00 kr.
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Detaljer om varen
- 2. Udgave
- Paperback: 976 sider
- Udgiver: Cisco Press (Februar 2024)
- ISBN: 9780138321338
Networking Essentials Companion Guide v3: Cisco Certified Support Technician (CCST) Networking 100-150 is the official supplemental textbook for the Networking Essentials course in the Cisco Networking Academy.
Networking is at the heart of the digital transformation. The network is essential to many business functions today, including business-critical data and operations, cybersecurity, and so much more. A wide variety of career paths rely on the network, so it's important to understand what the network can do, how it operates, and how to protect it.
This is a great course for developers, data scientists, cybersecurity specialists, and other professionals looking to broaden their networking domain knowledge. It's also an excellent launching point for students pursuing a wide range of career pathways--from cybersecurity to software development to business and more.
The Companion Guide is designed as a portable desk reference to use anytime, anywhere to reinforce the material from the course and organize your time.
The book's features help you focus on important concepts to succeed in this course:
- Chapter objectives: Review core concepts by answering the focus questions listed at the beginning of each chapter.
- Key terms: Refer to the lists of networking vocabulary introduced and highlighted in context in each chapter.
- Glossary: Consult the comprehensive Glossary with more than 250 terms.
- Summary of Activities and Labs: Maximize your study time with this complete list of all associated practice exercises at the end of each chapter.
- Check Your Understanding: Evaluate your readiness with the end-of-chapter questions that match the style of questions you see in the online course quizzes. The answer key explains each answer.
Introduction xlii
Chapter 1 Communications in a Connected World 1 Objectives 1 Key Terms 1 Introduction (1.0) 2 Network Types (1.1) 2 Everything Is Online (1.1.2) 2 Who Owns "The Internet"? (1.1.3) 2 Local Networks (1.1.4) 3 Small Home Networks 4 Small Office and Home Office Networks 4 Medium to Large Networks 4 Worldwide Networks 6 Mobile Devices (1.1.5) 6 Smartphone 6 Tablet 7 Smartwatch 8 Smart Glasses 8 Connected Home Devices (1.1.6) 8 Security System 8 Appliances 9 Smart TV 10 Gaming Console 11 Other Connected Devices (1.1.7) 11 Smart Cars 11 RFID Tags 12 Sensors and Actuators 13 Medical Devices 13 Data Transmission (1.2) 14 The Bit (1.2.2) 14 Common Methods of Data Transmission (1.2.3) 15 Bandwidth and Throughput (1.3) 17 Bandwidth (1.3.1) 17 Throughput (1.3.2) 18 Communications in a Connected World Summary (1.4) 18 What Did I Learn in This
Chapter? (1.4.1) 19 Reflection Questions (1.4.2) 20 Practice 21 Check Your Understanding Questions 21
Chapter 2 Network Components, Types, and Connections 25 Objectives 25 Key Terms 25 Introduction (2.0) 26 Clients and Servers (2.1) 26 Client and Server Roles (2.1.2) 26 Peer-to-Peer Networks (2.1.3) 27 Peer-to-Peer Applications (2.1.4) 28 Multiple Roles in the Network (2.1.5) 29 Network Components (2.2) 30 Network Infrastructure (2.2.2) 30 End Devices (2.2.3) 32 ISP Connectivity Options (2.3) 33 ISP Services (2.3.1) 33 ISP Connections (2.3.2) 34 Cable and DSL Connections (2.3.3) 35 Additional Connectivity Options (2.3.4) 36 Network Components, Types, and Connections Summary (2.4) 37 What Did I Learn in This
Chapter? (2.4.1) 37 Reflection Questions (2.4.2) 38 Practice 39 Check Your Understanding Questions 39
Chapter 3 Wireless and Mobile Networks 41 Objectives 41 Key Terms 41 Introduction (3.0) 42 Wireless Networks (3.1) 42 Other Wireless Networks (3.1.3) 43 Global Positioning System 43 Wi-Fi 43 Bluetooth 43 NFC 43 Mobile Device Connectivity (3.2) 44 Mobile Devices and Wi-Fi (3.2.1) 44 Wi-Fi Settings (3.2.2) 44 Configure Mobile Wi-Fi Connectivity (3.2.3) 46 Configure Cellular Data Settings (3.2.4) 47 Android Cellular Data 47 iOS Cellular Data 48 Simple Connectivity with Bluetooth (3.2.6) 49 Bluetooth Pairing (3.2.7) 50 Explore Your Network Settings on Your Mobile Device (3.2.8) 51 Wireless and Mobile Networks Summary (3.3) 52 What Did I Learn in This
Chapter? (3.3.1) 52 Reflection Questions (3.3.2) 53 Practice 54 Check Your Understanding Questions 54
Chapter 4 Build a Home Network 57 Objectives 57 Key Terms 57 Introduction (4.0) 58 Home Network Basics (4.1) 58 Components of a Home Network (4.1.2) 58 Typical Home Network Routers (4.1.3) 59 Network Technologies in the Home (4.2) 60 LAN Wireless Frequencies (4.2.1) 61 Wired Network Technologies (4.2.2) 62 Category 5e Cable 62 Coaxial Cable 62 Fiber-Optic Cable 63 Wireless Standards (4.3) 63 Wi-Fi Networks (4.3.1) 64 Wireless Settings (4.3.2) 64 Network Mode 65 Set Up a Home Router (4.4) 66 First Time Setup (4.4.1) 66 Design Considerations (4.4.2) 67 Build a Home Network Summary (4.5) 69 What Did I Learn in This
Chapter? (4.5.1) 69 Reflection Questions (4.5.2) 71 Practice 72 Packet Tracer Activities 72 Check Your Understanding Questions 72
Chapter 5 Communication Principles 75 Objectives 75 Key Terms 75 Introduction (5.0) 76 Networking Protocols (5.1) 76 Communication Protocols (5.1.1) 76 Why Protocols Matter (5.1.2) 78 Communication Standards (5.2) 80 The Internet and Standards (5.2.2) 80 Network Standards Organizations (5.2.3) 80 Network Communication Models (5.3) 81 The TCP/IP Model (5.3.3) 81 The OSI Reference Model (5.3.4) 82 OSI Model and TCP/IP Model Comparison (5.3.5) 83 Communication Principles Summary (5.4) 85 What Did I Learn in This
Chapter? (5.4.1) 85 Reflection Questions (5.4.2) 87 Practice 88 Check Your Understanding Questions 88
Chapter 6 Network Media 91 Objectives 91 Key Terms 91 Introduction (6.0) 92 Network Media Types (6.1) 92 Three Media Types (6.1.2) 92 Common Network Cables (6.1.3) 93 Twisted-Pair Cable 93 Coaxial Cable 94 Fiber-Optic Cable 95 Network Media Summary (6.2) 95 What Did I Learn in This
Chapter? (6.2.1) 95 Reflection Questions (6.2.2) 96 Practice 97 Check Your Understanding Questions 97
Chapter 7 The Access Layer 101 Objectives 101 Key Terms 101 Introduction (7.0) 102 Encapsulation and the Ethernet Frame (7.1) 102 Encapsulation (7.1.2) 102 The Access Layer (7.2) 104 Ethernet Frame (7.2.1) 104 Access Layer Devices (7.2.2) 105 Ethernet Hubs (7.2.3) 106 Ethernet Switches (7.2.4) 107 The MAC Address Table (7.2.5) 109 The Access Layer Summary (7.3) 111 What Did I Learn in This
Chapter? (7.3.1) 111 Reflection Questions (7.3.2) 113 Practice 114 Check Your Understanding Questions 114
Chapter 8 The Internet Protocol 117 Objectives 117 Introduction (8.0) 118 Purpose of an IPv4 Address (8.1) 118 The IPv4 Address (8.1.1) 118 Octets and Dotted-Decimal Notation (8.1.2) 119 The IPv4 Address Structure (8.2) 119 Networks and Hosts (8.2.2) 119 Summary (8.3) 121 What Did I Learn in This
Chapter? (8.3.1) 121 Reflection Questions (8.3.2) 121 Practice 122 Packet Tracer Activities 122 Check Your Understanding Questions 122
Chapter 9 IPv4 and Network Segmentation 125 Objectives 125 Key Terms 125 Introduction (9.0) 126 IPv4 Unicast, Broadcast, and Multicast (9.1) 126 Unicast (9.1.2) 126 Broadcast (9.1.4) 127 Multicast (9.1.6) 129 Types of IPv4 Addresses (9.2) 130 Public and Private IPv4 Addresses (9.2.1) 130 Routing to the Internet (9.2.2) 131 Special-Use IPv4 Addresses (9.2.4) 132 Loopback Addresses 132 Link-Local addresses 133 Legacy Classful Addressing (9.2.5) 133 Assignment of IP Addresses (9.2.6) 134 Network Segmentation (9.3) 135 Broadcast Domains and Segmentation (9.3.2) 136 Problems with Large Broadcast Domains (9.3.3) 137 Reasons for Segmenting Networks (9.3.4) 138 IPv4 and Network Segmentation Summary (9.4) 140 What Did I Learn in This
Chapter? (9.4.1) 140 Reflection Questions (9.4.2) 143 Practice 144 Check Your Understanding Questions 144
Chapter 10 IPv6 Addressing Formats and Rules 147 Objectives 147 Key Terms 147 Introduction (10.0) 148 IPv4 Issues (10.1) 148 The Need for IPv6 (10.1.1) 148 Internet of Things 149 IPv4 and IPv6 Coexistence (10.1.2) 150 Dual Stack 150 Tunneling 150 Translation 151 IPv6 Addressing (10.2) 152 Hexadecimal Number System (10.2.1) 152 IPv6 Addressing Formats (10.2.2) 152 Preferred Format 153 Rule 1--Omit Leading Zeros (10.2.4) 153 Rule 2--Double Colon (10.2.5) 155 IPv6 Addressing Formats and Rules Summary (10.3) 156 What Did I Learn in This
Chapter? (10.3.1) 157 Reflection Questions (10.3.2) 158 Practice 159 Check Your Understanding Questions 159
Chapter 11 Dynamic Addressing with DHCP 163 Objectives 163 Key Term 163 Introduction (11.0) 164 Static and Dynamic Addressing (11.1) 164 Static IPv4 Address Assignment (11.1.1) 164 Dynamic IPv4 Address Assignment (11.1.2) 165 DHCP Servers (11.1.3) 166 DHCPv4 Configuration (11.2) 167 DHCPv4 Operation (11.2.1) 168 DHCP Service Configuration (11.2.3) 169 Dynamic Addressing with DHCP Summary (11.3) 170 What Did I Learn in This
Chapter? (11.3.1) 170 Reflection Questions (11.3.2) 171 Practice 172 Packet Tracer Activities 172 Check Your Understanding Questions 172
Chapter 12 Gateways to Other Networks 175 Objectives 175 Key Term 175 Introduction (12.0) 176 Network Boundaries (12.1) 176 Routers as Gateways (12.1.2) 176 Routers as Boundaries Between Networks (12.1.3) 177 Network Address Translation (12.2) 178 NAT Operation (12.2.1) 179 Gateways to Other Networks Summary (12.3) 180 What Did I Learn in This
Chapter? (12.3.1) 180 Reflection Questions (12.3.2) 181 Practice 182 Packet Tracer Activities 182 Check Your Understanding Questions 182
Chapter 13 The ARP Process 185 Objectives 185 Key Term 185 Introduction (13.0) 186 MAC and IP (13.1) 186 Destination on Same Network (13.1.1) 186 Destination on Remote Network (13.1.2) 187 Broadcast Containment (13.2) 189 Broadcast Domains (13.2.2) 190 Access Layer Communication (13.2.3) 191 ARP (13.2.5) 192 The ARP Process Summary (13.3) 193 What Did I Learn in This
Chapter? (13.3.1) 193 Reflection Questions (13.3.2) 194 Practice 195 Packet Tracer Activities 195 Check Your Understanding Questions 195
Chapter 14 Routing Between Networks 199 Objectives 199 Key Terms 199 Introduction (14.0) 200 The Need for Routing (14.1) 200 Now We Need Routing (14.1.2) 200 The
Chapter 1 Communications in a Connected World 1 Objectives 1 Key Terms 1 Introduction (1.0) 2 Network Types (1.1) 2 Everything Is Online (1.1.2) 2 Who Owns "The Internet"? (1.1.3) 2 Local Networks (1.1.4) 3 Small Home Networks 4 Small Office and Home Office Networks 4 Medium to Large Networks 4 Worldwide Networks 6 Mobile Devices (1.1.5) 6 Smartphone 6 Tablet 7 Smartwatch 8 Smart Glasses 8 Connected Home Devices (1.1.6) 8 Security System 8 Appliances 9 Smart TV 10 Gaming Console 11 Other Connected Devices (1.1.7) 11 Smart Cars 11 RFID Tags 12 Sensors and Actuators 13 Medical Devices 13 Data Transmission (1.2) 14 The Bit (1.2.2) 14 Common Methods of Data Transmission (1.2.3) 15 Bandwidth and Throughput (1.3) 17 Bandwidth (1.3.1) 17 Throughput (1.3.2) 18 Communications in a Connected World Summary (1.4) 18 What Did I Learn in This
Chapter? (1.4.1) 19 Reflection Questions (1.4.2) 20 Practice 21 Check Your Understanding Questions 21
Chapter 2 Network Components, Types, and Connections 25 Objectives 25 Key Terms 25 Introduction (2.0) 26 Clients and Servers (2.1) 26 Client and Server Roles (2.1.2) 26 Peer-to-Peer Networks (2.1.3) 27 Peer-to-Peer Applications (2.1.4) 28 Multiple Roles in the Network (2.1.5) 29 Network Components (2.2) 30 Network Infrastructure (2.2.2) 30 End Devices (2.2.3) 32 ISP Connectivity Options (2.3) 33 ISP Services (2.3.1) 33 ISP Connections (2.3.2) 34 Cable and DSL Connections (2.3.3) 35 Additional Connectivity Options (2.3.4) 36 Network Components, Types, and Connections Summary (2.4) 37 What Did I Learn in This
Chapter? (2.4.1) 37 Reflection Questions (2.4.2) 38 Practice 39 Check Your Understanding Questions 39
Chapter 3 Wireless and Mobile Networks 41 Objectives 41 Key Terms 41 Introduction (3.0) 42 Wireless Networks (3.1) 42 Other Wireless Networks (3.1.3) 43 Global Positioning System 43 Wi-Fi 43 Bluetooth 43 NFC 43 Mobile Device Connectivity (3.2) 44 Mobile Devices and Wi-Fi (3.2.1) 44 Wi-Fi Settings (3.2.2) 44 Configure Mobile Wi-Fi Connectivity (3.2.3) 46 Configure Cellular Data Settings (3.2.4) 47 Android Cellular Data 47 iOS Cellular Data 48 Simple Connectivity with Bluetooth (3.2.6) 49 Bluetooth Pairing (3.2.7) 50 Explore Your Network Settings on Your Mobile Device (3.2.8) 51 Wireless and Mobile Networks Summary (3.3) 52 What Did I Learn in This
Chapter? (3.3.1) 52 Reflection Questions (3.3.2) 53 Practice 54 Check Your Understanding Questions 54
Chapter 4 Build a Home Network 57 Objectives 57 Key Terms 57 Introduction (4.0) 58 Home Network Basics (4.1) 58 Components of a Home Network (4.1.2) 58 Typical Home Network Routers (4.1.3) 59 Network Technologies in the Home (4.2) 60 LAN Wireless Frequencies (4.2.1) 61 Wired Network Technologies (4.2.2) 62 Category 5e Cable 62 Coaxial Cable 62 Fiber-Optic Cable 63 Wireless Standards (4.3) 63 Wi-Fi Networks (4.3.1) 64 Wireless Settings (4.3.2) 64 Network Mode 65 Set Up a Home Router (4.4) 66 First Time Setup (4.4.1) 66 Design Considerations (4.4.2) 67 Build a Home Network Summary (4.5) 69 What Did I Learn in This
Chapter? (4.5.1) 69 Reflection Questions (4.5.2) 71 Practice 72 Packet Tracer Activities 72 Check Your Understanding Questions 72
Chapter 5 Communication Principles 75 Objectives 75 Key Terms 75 Introduction (5.0) 76 Networking Protocols (5.1) 76 Communication Protocols (5.1.1) 76 Why Protocols Matter (5.1.2) 78 Communication Standards (5.2) 80 The Internet and Standards (5.2.2) 80 Network Standards Organizations (5.2.3) 80 Network Communication Models (5.3) 81 The TCP/IP Model (5.3.3) 81 The OSI Reference Model (5.3.4) 82 OSI Model and TCP/IP Model Comparison (5.3.5) 83 Communication Principles Summary (5.4) 85 What Did I Learn in This
Chapter? (5.4.1) 85 Reflection Questions (5.4.2) 87 Practice 88 Check Your Understanding Questions 88
Chapter 6 Network Media 91 Objectives 91 Key Terms 91 Introduction (6.0) 92 Network Media Types (6.1) 92 Three Media Types (6.1.2) 92 Common Network Cables (6.1.3) 93 Twisted-Pair Cable 93 Coaxial Cable 94 Fiber-Optic Cable 95 Network Media Summary (6.2) 95 What Did I Learn in This
Chapter? (6.2.1) 95 Reflection Questions (6.2.2) 96 Practice 97 Check Your Understanding Questions 97
Chapter 7 The Access Layer 101 Objectives 101 Key Terms 101 Introduction (7.0) 102 Encapsulation and the Ethernet Frame (7.1) 102 Encapsulation (7.1.2) 102 The Access Layer (7.2) 104 Ethernet Frame (7.2.1) 104 Access Layer Devices (7.2.2) 105 Ethernet Hubs (7.2.3) 106 Ethernet Switches (7.2.4) 107 The MAC Address Table (7.2.5) 109 The Access Layer Summary (7.3) 111 What Did I Learn in This
Chapter? (7.3.1) 111 Reflection Questions (7.3.2) 113 Practice 114 Check Your Understanding Questions 114
Chapter 8 The Internet Protocol 117 Objectives 117 Introduction (8.0) 118 Purpose of an IPv4 Address (8.1) 118 The IPv4 Address (8.1.1) 118 Octets and Dotted-Decimal Notation (8.1.2) 119 The IPv4 Address Structure (8.2) 119 Networks and Hosts (8.2.2) 119 Summary (8.3) 121 What Did I Learn in This
Chapter? (8.3.1) 121 Reflection Questions (8.3.2) 121 Practice 122 Packet Tracer Activities 122 Check Your Understanding Questions 122
Chapter 9 IPv4 and Network Segmentation 125 Objectives 125 Key Terms 125 Introduction (9.0) 126 IPv4 Unicast, Broadcast, and Multicast (9.1) 126 Unicast (9.1.2) 126 Broadcast (9.1.4) 127 Multicast (9.1.6) 129 Types of IPv4 Addresses (9.2) 130 Public and Private IPv4 Addresses (9.2.1) 130 Routing to the Internet (9.2.2) 131 Special-Use IPv4 Addresses (9.2.4) 132 Loopback Addresses 132 Link-Local addresses 133 Legacy Classful Addressing (9.2.5) 133 Assignment of IP Addresses (9.2.6) 134 Network Segmentation (9.3) 135 Broadcast Domains and Segmentation (9.3.2) 136 Problems with Large Broadcast Domains (9.3.3) 137 Reasons for Segmenting Networks (9.3.4) 138 IPv4 and Network Segmentation Summary (9.4) 140 What Did I Learn in This
Chapter? (9.4.1) 140 Reflection Questions (9.4.2) 143 Practice 144 Check Your Understanding Questions 144
Chapter 10 IPv6 Addressing Formats and Rules 147 Objectives 147 Key Terms 147 Introduction (10.0) 148 IPv4 Issues (10.1) 148 The Need for IPv6 (10.1.1) 148 Internet of Things 149 IPv4 and IPv6 Coexistence (10.1.2) 150 Dual Stack 150 Tunneling 150 Translation 151 IPv6 Addressing (10.2) 152 Hexadecimal Number System (10.2.1) 152 IPv6 Addressing Formats (10.2.2) 152 Preferred Format 153 Rule 1--Omit Leading Zeros (10.2.4) 153 Rule 2--Double Colon (10.2.5) 155 IPv6 Addressing Formats and Rules Summary (10.3) 156 What Did I Learn in This
Chapter? (10.3.1) 157 Reflection Questions (10.3.2) 158 Practice 159 Check Your Understanding Questions 159
Chapter 11 Dynamic Addressing with DHCP 163 Objectives 163 Key Term 163 Introduction (11.0) 164 Static and Dynamic Addressing (11.1) 164 Static IPv4 Address Assignment (11.1.1) 164 Dynamic IPv4 Address Assignment (11.1.2) 165 DHCP Servers (11.1.3) 166 DHCPv4 Configuration (11.2) 167 DHCPv4 Operation (11.2.1) 168 DHCP Service Configuration (11.2.3) 169 Dynamic Addressing with DHCP Summary (11.3) 170 What Did I Learn in This
Chapter? (11.3.1) 170 Reflection Questions (11.3.2) 171 Practice 172 Packet Tracer Activities 172 Check Your Understanding Questions 172
Chapter 12 Gateways to Other Networks 175 Objectives 175 Key Term 175 Introduction (12.0) 176 Network Boundaries (12.1) 176 Routers as Gateways (12.1.2) 176 Routers as Boundaries Between Networks (12.1.3) 177 Network Address Translation (12.2) 178 NAT Operation (12.2.1) 179 Gateways to Other Networks Summary (12.3) 180 What Did I Learn in This
Chapter? (12.3.1) 180 Reflection Questions (12.3.2) 181 Practice 182 Packet Tracer Activities 182 Check Your Understanding Questions 182
Chapter 13 The ARP Process 185 Objectives 185 Key Term 185 Introduction (13.0) 186 MAC and IP (13.1) 186 Destination on Same Network (13.1.1) 186 Destination on Remote Network (13.1.2) 187 Broadcast Containment (13.2) 189 Broadcast Domains (13.2.2) 190 Access Layer Communication (13.2.3) 191 ARP (13.2.5) 192 The ARP Process Summary (13.3) 193 What Did I Learn in This
Chapter? (13.3.1) 193 Reflection Questions (13.3.2) 194 Practice 195 Packet Tracer Activities 195 Check Your Understanding Questions 195
Chapter 14 Routing Between Networks 199 Objectives 199 Key Terms 199 Introduction (14.0) 200 The Need for Routing (14.1) 200 Now We Need Routing (14.1.2) 200 The
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