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Viser: CompTIA Network+ N10-009 Cert Guide
CompTIA Network+ N10-009 Cert Guide
Anthony Sequeira
(2024)
Sprog: Engelsk
Cisco Press
441,00 kr.
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Detaljer om varen
- 2. Udgave
- Paperback: 688 sider
- Udgiver: Cisco Press (December 2024)
- ISBN: 9780135367889
Learn, prepare, and practice for CompTIA Network+ N10-009 exam success with this Cert Guide from Pearson IT Certification, a leader in IT Certification learning.
CompTIA Network+ N10-009 Cert Guide from Pearson IT Certification helps you prepare to succeed on the CompTIA Network+ N10-009 exam by directly addressing the exam's objectives as stated by CompTIA. Leading instructor Anthony Sequeira shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills.
This complete study package includes
- Complete coverage of the exam objectives and a test-preparation routine designed to help you pass the exams
- Do I Know This Already? quizzes, which enable you to decide how much time you need to spend on each section
- Chapter-ending Key Topic tables, which help you drill on key concepts you must know thoroughly
- The powerful Pearson Test Prep Practice Test software, complete with hundreds of well-reviewed, exam-realistic questions, customization options, and detailed performance reports
- An online, interactive Flash Cards application to help you drill on key terms by chapter
- A final preparation chapter, which guides you through tools and resources to help you craft your review and test-taking strategies
- Study plan suggestions and templates to help you organize and optimize your study time
Well regarded for its level of detail, study plans, assessment features, and challenging review questions and exercises, this study guide helps you master the concepts and techniques that ensure your exam success.
This study guide helps you master all the topics on the CompTIA Network+ N10-009 exam, deepening your knowledge of
- Networking Concepts: Open systems interconnection reference model; networking appliances, applications and functions; cloud concepts and connectivity options; networking ports, protocols, services, traffic types; transmission media and transceivers; network topologies, architectures, and types; IPv4 network addressing; modern network environments
- Networking Implementation: Routing technologies, switching technologies and features, wireless devices, physical installations
- Network Operations: Organizational processes, network monitoring technologies, disaster recovery (DR) concepts, IPv4 and IPv6 network services, network access and management methods
- Network Security: Basic network security concepts, types of attacks and their impact on the network, network security features, defense techniques and solutions
- Network Troubleshooting: Troubleshooting methodology, common cabling and physical interface issues, troubleshooting common issues with network services, troubleshooting common performance issues, solving networking issues
Introduction xxxv
Part I: Networking Concepts
Chapter 1 The OSI Model and Encapsulation 3 Foundation Topics 4 The Purpose of Reference Models 4 The OSI Model 6 Layer
1: The Physical Layer 7 Layer
2: The Data Link Layer 11 Media Access Control 12 Logical Link Control 13 Layer
3: The Network Layer 14 Layer
4: The Transport Layer 17 Layer
5: The Session Layer 19 Layer
6: The Presentation Layer 20 Layer
7: The Application Layer 21 The TCP/IP Stack 22 Layers of the TCP/IP Stack 22 Common Application Protocols in the TCP/IP Stack 26 Real-World Case Study 27 Summary 28 Exam Preparation Tasks 28
Chapter 2 Networking Appliances, Applications, and Functions 35 Foundation Topics 36 Physical and Virtual Appliances 36 Routers 36 Switches 36 Firewalls 45 Intrusion Detection System (IDS)/Intrusion Prevention System (IPS) 46 IDS Versus IPS 46 IDS and IPS Device Categories 47 Signature-Based Detection 48 Policy-Based Detection 48 Anomaly-Based Detection 48 Load Balancer 49 Proxy Servers 49 Network-attached Storage (NAS) 51 Storage Area Networks (SANs) 51 Access Points (APs) 52 Controllers 53 Networking Device Summary 53 Applications and Functions 54 Content Delivery Network (CDN) 54 Virtual Private Network (VPN) 55 Quality of Service (QoS) 55 Time to Live (TTL) 57 Real-World Case Study 57 Summary 58 Exam Preparation Tasks 58
Chapter 3 Cloud Concepts 65 Foundation Topics 66 Network Functions Virtualization (NFV) 66 Cloud Networking Components 67 Virtual Private Cloud (VPC) 67 Network Security Groups 68 Network Security Lists 69 Cloud Gateways 69 Deployment Models 71 Service Models 72 Key Cloud Concepts 73 Cloud Connectivity Options 73 Multitenancy 74 Elasticity 74 Scalability 75 Real-World Case Study 75 Summary 75 Exam Preparation Tasks 76
Chapter 4 Networking Ports, Protocols, Services, and Traffic Types 81 Foundation Topics 82 Ports and Protocols 82 FTP (File Transfer Protocol) 82 SFTP 82 SSH 82 Telnet 82 SMTP 83 DNS (Domain Name System) 83 DHCP (Dynamic Host Configuration Protocol) 83 TFTP 83 HTTP 83 NTP 83 SNMP 84 LDAP 84 HTTPS 84 SMB 84 Syslog 84 SMTPS 85 LDAPS 85 Structured Query Language (SQL) Server 85 RDP 85 SIP 85 Protocol/Port Summary 85 Internet Protocol (IP) Types 87 Internet Control Message Protocol (ICMP) 87 Transmission Control Protocol (TCP) 88 User Datagram Protocol (UDP) 88 Generic Routing Encapsulation (GRE) 88 Internet Protocol Security (IPsec) 89 Internet Protocol (IP) Types Summary 89 Traffic Types 90 Unicast 90 Broadcast 91 Multicast 91 Anycast 92 Traffic Types Summary 94 Summary 95 Exam Preparation Tasks 95
Chapter 5 Transmission Media and Transceivers 101 Foundation Topics 102 Wireless 102 Transmission Methods 105 WLAN Standards (802.11) 106
802.11a 106
802.11b 106
802.11g 106
802.11n (Wi-Fi 4) 106
802.11ac (Wi-Fi 5) 107
802.11ax (Wi-Fi 6) 107
802.11 Standards Summary 108 Cellular 108 Satellite 109 Copper and Fiber Media and Connectors 111 Coaxial Cable 111 Twisted-Pair Cable 113 Shielded Twisted Pair 113 Unshielded Twisted Pair 114 Twisted-Pair Cable Connectors 116 Plenum Versus Non-plenum Cable 117 Fiber-Optic Cable 117 Multimode Fiber 118 Single-Mode Fiber 120 Fiber-Optic Cable Connectors 120 Fiber Connector Polishing Styles 121 Ethernet and Fiber Standards (802.3) 122 Distance and Speed Limitations 124 Transceivers 126 Multiplexing in Fiber-Optic Networks 127 Media Converters 127 Real-World Case Study 128 Summary 128 Exam Preparation Tasks 128
Chapter 6 Network Topologies, Architectures, and Types 135 Foundation Topics 136 Defining a Network 136 The Purpose of Networks 136 Network Types and Characteristics 137 LAN 137 WAN 138 WLAN 138 SAN 139 Other Categories of Networks 139 CAN 139 MAN 139 PAN 139 Networks Defined Based on Resource Location 140 Client/Server Networks 140 Peer-to-Peer Networks 141 Cloud Networking 143 Networks Defined by Topology 143 Physical Versus Logical Topology 143 Point-to-Point Topology 145 Star Topology 145 Hub-and-Spoke Topology 146 Full-Mesh Topology 147 Partial-Mesh Topology 148 The Three-Tier Hierarchical Model 150 The Access/Edge Layer 150 The Distribution/Aggregation Layer 151 The Core Layer 152 Spine and Leaf 153 Traffic Flows 155 Real-World Case Study 155 Summary 155 Exam Preparation Tasks 156
Chapter 7 IPv4 Addressing 163 Foundation Topics 164 Binary Numbering 164 Principles of Binary Numbering 164 Converting a Binary Number to a Decimal Number 165 Converting a Decimal Number to a Binary Number 165 Binary Numbering Practice 167 Binary Conversion Exercise 1 167 Binary Conversion Exercise
1: Solution 168 Binary Conversion Exercise 2 168 Binary Conversion Exercise
2: Solution 168 Binary Conversion Exercise 3 168 Binary Conversion Exercise
3: Solution 169 Binary Conversion Exercise 4 169 Binary Conversion Exercise
4: Solution 170 IPv4 Addressing 170 IPv4 Address Structure 171 Classes of Addresses 173 Assigning IPv4 Addresses 175 IP Addressing Components 175 Static Configuration 176 Dynamic Configuration 180 Automatic Private IP Addressing 180 Subnetting 181 Purpose of Subnetting 182 Subnet Mask Notation 182 Subnet Notation: Practice Exercise 1 184 Subnet Notation: Practice Exercise 1 Solution 184 Subnet Notation: Practice Exercise 2 184 Subnet Notation: Practice Exercise 2 Solution 185 Extending a Classful Mask 185 Borrowed Bits 185 Calculating the Number of Created Subnets 185 Calculating the Number of Available Hosts 186 Basic Subnetting Practice: Exercise 1 187 Basic Subnetting Practice: Exercise 1 Solution 187 Basic Subnetting Practice: Exercise 2 188 Basic Subnetting Practice: Exercise 2 Solution 188 Calculating New IP Address Ranges 189 Advanced Subnetting Practice: Exercise 1 192 Advanced Subnetting Practice: Exercise 1 Solution 192 Advanced Subnetting Practice: Exercise 2 193 Advanced Subnetting Practice: Exercise 2 Solution 193 Additional Practice 195 Classless Inter-domain Routing 196 Real-World Case Study 197 Summary 198
Chapter 8 Evolving Use Cases 203 Foundation Topics 205 SDN and SD-WAN 205 Software-Defined Networking (SDN) 205 Software-Defined Wide Area Network (SD-WAN) 206 Virtual Extensible Local Area Network (VXLAN) 208 Zero Trust Architecture (ZTA) 209 SASE and SSE 211 Infrastructure as Code (IaC) 212 IP Version 6 215 Need for IPv6 216 IPv6 Address Structure 217 IPv6 Address Types 217 IPv6 Data Flows 218 Unicast 219 Multicast 219 Anycast 220 Real-World Case Study 221 Summary 222 Exam Preparation Tasks 223
Part II: Network Implementation
Chapter 9 Routing Technologies 229 Foundation Topics 230 Routing 230 Sources of Routing Information 233 Directly Connected Routes 233 Static Routes 234 Dynamic Routing Protocols 235 Routing Protocol Characteristics 237 Believability of a Route 237 Metrics 238 Interior Versus Exterior Gateway Protocols 238 Route Advertisement Method 238 Distance Vector 239 Link State 242 Routing Protocol Examples 242 Address Translation 244 NAT 244 PAT 246 First Hop Redundancy Protocol (FHRP) 248 Real-World Case Study 250 Summary 250 Exam Preparation Tasks 251
Chapter 10 Ethernet Switching Technologies 257 Foundation Topics 258 Principles of Ethernet 258 Carrier-Sense Multiple Access with Collision Detection 258 Distance and Speed Limitations 262 Ethernet Switch Features 263 Virtual LANs 263 Switch Configuration for an Access Port 266 Trunks 267 Switch Configuration for a Trunk Port 268 Spanning Tree Protocol 269 Corruption of a Switch''s MAC Address Table 269 Broadcast Storms 270 STP Operation 271 Modern Enhancements to STP 274 Link Aggregation 275 LACP Configuration 276 Power over Ethernet 277 Other Switch Features 278 Real-World Case Study 279 Summary 279 Exam Preparation Tasks 280
Chapter 11 Configure Wireless Devices and Technologies 285 Foundation Topics 286 Introducing Wireless LANs 286 WLAN Concepts and Components 286 Wireless Routers 286 Wireless Access Point 287 Guest Networks 289 Antennas 289 Channel and Frequency Options 292 Deploying Wireless LANs 293 Types of WLANs 293 IBSS 293 BSS 294 ESS 295 Mesh Topology 295 Sources of Interference 296 Wireless AP Placement 297 Securing Wireless LANs 299 Security Issues 299 Approaches to WLAN Security 300 Security Standards 303 WPA2 303 WPA3 303 Additional Wireless Options 3
Part I: Networking Concepts
Chapter 1 The OSI Model and Encapsulation 3 Foundation Topics 4 The Purpose of Reference Models 4 The OSI Model 6 Layer
1: The Physical Layer 7 Layer
2: The Data Link Layer 11 Media Access Control 12 Logical Link Control 13 Layer
3: The Network Layer 14 Layer
4: The Transport Layer 17 Layer
5: The Session Layer 19 Layer
6: The Presentation Layer 20 Layer
7: The Application Layer 21 The TCP/IP Stack 22 Layers of the TCP/IP Stack 22 Common Application Protocols in the TCP/IP Stack 26 Real-World Case Study 27 Summary 28 Exam Preparation Tasks 28
Chapter 2 Networking Appliances, Applications, and Functions 35 Foundation Topics 36 Physical and Virtual Appliances 36 Routers 36 Switches 36 Firewalls 45 Intrusion Detection System (IDS)/Intrusion Prevention System (IPS) 46 IDS Versus IPS 46 IDS and IPS Device Categories 47 Signature-Based Detection 48 Policy-Based Detection 48 Anomaly-Based Detection 48 Load Balancer 49 Proxy Servers 49 Network-attached Storage (NAS) 51 Storage Area Networks (SANs) 51 Access Points (APs) 52 Controllers 53 Networking Device Summary 53 Applications and Functions 54 Content Delivery Network (CDN) 54 Virtual Private Network (VPN) 55 Quality of Service (QoS) 55 Time to Live (TTL) 57 Real-World Case Study 57 Summary 58 Exam Preparation Tasks 58
Chapter 3 Cloud Concepts 65 Foundation Topics 66 Network Functions Virtualization (NFV) 66 Cloud Networking Components 67 Virtual Private Cloud (VPC) 67 Network Security Groups 68 Network Security Lists 69 Cloud Gateways 69 Deployment Models 71 Service Models 72 Key Cloud Concepts 73 Cloud Connectivity Options 73 Multitenancy 74 Elasticity 74 Scalability 75 Real-World Case Study 75 Summary 75 Exam Preparation Tasks 76
Chapter 4 Networking Ports, Protocols, Services, and Traffic Types 81 Foundation Topics 82 Ports and Protocols 82 FTP (File Transfer Protocol) 82 SFTP 82 SSH 82 Telnet 82 SMTP 83 DNS (Domain Name System) 83 DHCP (Dynamic Host Configuration Protocol) 83 TFTP 83 HTTP 83 NTP 83 SNMP 84 LDAP 84 HTTPS 84 SMB 84 Syslog 84 SMTPS 85 LDAPS 85 Structured Query Language (SQL) Server 85 RDP 85 SIP 85 Protocol/Port Summary 85 Internet Protocol (IP) Types 87 Internet Control Message Protocol (ICMP) 87 Transmission Control Protocol (TCP) 88 User Datagram Protocol (UDP) 88 Generic Routing Encapsulation (GRE) 88 Internet Protocol Security (IPsec) 89 Internet Protocol (IP) Types Summary 89 Traffic Types 90 Unicast 90 Broadcast 91 Multicast 91 Anycast 92 Traffic Types Summary 94 Summary 95 Exam Preparation Tasks 95
Chapter 5 Transmission Media and Transceivers 101 Foundation Topics 102 Wireless 102 Transmission Methods 105 WLAN Standards (802.11) 106
802.11a 106
802.11b 106
802.11g 106
802.11n (Wi-Fi 4) 106
802.11ac (Wi-Fi 5) 107
802.11ax (Wi-Fi 6) 107
802.11 Standards Summary 108 Cellular 108 Satellite 109 Copper and Fiber Media and Connectors 111 Coaxial Cable 111 Twisted-Pair Cable 113 Shielded Twisted Pair 113 Unshielded Twisted Pair 114 Twisted-Pair Cable Connectors 116 Plenum Versus Non-plenum Cable 117 Fiber-Optic Cable 117 Multimode Fiber 118 Single-Mode Fiber 120 Fiber-Optic Cable Connectors 120 Fiber Connector Polishing Styles 121 Ethernet and Fiber Standards (802.3) 122 Distance and Speed Limitations 124 Transceivers 126 Multiplexing in Fiber-Optic Networks 127 Media Converters 127 Real-World Case Study 128 Summary 128 Exam Preparation Tasks 128
Chapter 6 Network Topologies, Architectures, and Types 135 Foundation Topics 136 Defining a Network 136 The Purpose of Networks 136 Network Types and Characteristics 137 LAN 137 WAN 138 WLAN 138 SAN 139 Other Categories of Networks 139 CAN 139 MAN 139 PAN 139 Networks Defined Based on Resource Location 140 Client/Server Networks 140 Peer-to-Peer Networks 141 Cloud Networking 143 Networks Defined by Topology 143 Physical Versus Logical Topology 143 Point-to-Point Topology 145 Star Topology 145 Hub-and-Spoke Topology 146 Full-Mesh Topology 147 Partial-Mesh Topology 148 The Three-Tier Hierarchical Model 150 The Access/Edge Layer 150 The Distribution/Aggregation Layer 151 The Core Layer 152 Spine and Leaf 153 Traffic Flows 155 Real-World Case Study 155 Summary 155 Exam Preparation Tasks 156
Chapter 7 IPv4 Addressing 163 Foundation Topics 164 Binary Numbering 164 Principles of Binary Numbering 164 Converting a Binary Number to a Decimal Number 165 Converting a Decimal Number to a Binary Number 165 Binary Numbering Practice 167 Binary Conversion Exercise 1 167 Binary Conversion Exercise
1: Solution 168 Binary Conversion Exercise 2 168 Binary Conversion Exercise
2: Solution 168 Binary Conversion Exercise 3 168 Binary Conversion Exercise
3: Solution 169 Binary Conversion Exercise 4 169 Binary Conversion Exercise
4: Solution 170 IPv4 Addressing 170 IPv4 Address Structure 171 Classes of Addresses 173 Assigning IPv4 Addresses 175 IP Addressing Components 175 Static Configuration 176 Dynamic Configuration 180 Automatic Private IP Addressing 180 Subnetting 181 Purpose of Subnetting 182 Subnet Mask Notation 182 Subnet Notation: Practice Exercise 1 184 Subnet Notation: Practice Exercise 1 Solution 184 Subnet Notation: Practice Exercise 2 184 Subnet Notation: Practice Exercise 2 Solution 185 Extending a Classful Mask 185 Borrowed Bits 185 Calculating the Number of Created Subnets 185 Calculating the Number of Available Hosts 186 Basic Subnetting Practice: Exercise 1 187 Basic Subnetting Practice: Exercise 1 Solution 187 Basic Subnetting Practice: Exercise 2 188 Basic Subnetting Practice: Exercise 2 Solution 188 Calculating New IP Address Ranges 189 Advanced Subnetting Practice: Exercise 1 192 Advanced Subnetting Practice: Exercise 1 Solution 192 Advanced Subnetting Practice: Exercise 2 193 Advanced Subnetting Practice: Exercise 2 Solution 193 Additional Practice 195 Classless Inter-domain Routing 196 Real-World Case Study 197 Summary 198
Chapter 8 Evolving Use Cases 203 Foundation Topics 205 SDN and SD-WAN 205 Software-Defined Networking (SDN) 205 Software-Defined Wide Area Network (SD-WAN) 206 Virtual Extensible Local Area Network (VXLAN) 208 Zero Trust Architecture (ZTA) 209 SASE and SSE 211 Infrastructure as Code (IaC) 212 IP Version 6 215 Need for IPv6 216 IPv6 Address Structure 217 IPv6 Address Types 217 IPv6 Data Flows 218 Unicast 219 Multicast 219 Anycast 220 Real-World Case Study 221 Summary 222 Exam Preparation Tasks 223
Part II: Network Implementation
Chapter 9 Routing Technologies 229 Foundation Topics 230 Routing 230 Sources of Routing Information 233 Directly Connected Routes 233 Static Routes 234 Dynamic Routing Protocols 235 Routing Protocol Characteristics 237 Believability of a Route 237 Metrics 238 Interior Versus Exterior Gateway Protocols 238 Route Advertisement Method 238 Distance Vector 239 Link State 242 Routing Protocol Examples 242 Address Translation 244 NAT 244 PAT 246 First Hop Redundancy Protocol (FHRP) 248 Real-World Case Study 250 Summary 250 Exam Preparation Tasks 251
Chapter 10 Ethernet Switching Technologies 257 Foundation Topics 258 Principles of Ethernet 258 Carrier-Sense Multiple Access with Collision Detection 258 Distance and Speed Limitations 262 Ethernet Switch Features 263 Virtual LANs 263 Switch Configuration for an Access Port 266 Trunks 267 Switch Configuration for a Trunk Port 268 Spanning Tree Protocol 269 Corruption of a Switch''s MAC Address Table 269 Broadcast Storms 270 STP Operation 271 Modern Enhancements to STP 274 Link Aggregation 275 LACP Configuration 276 Power over Ethernet 277 Other Switch Features 278 Real-World Case Study 279 Summary 279 Exam Preparation Tasks 280
Chapter 11 Configure Wireless Devices and Technologies 285 Foundation Topics 286 Introducing Wireless LANs 286 WLAN Concepts and Components 286 Wireless Routers 286 Wireless Access Point 287 Guest Networks 289 Antennas 289 Channel and Frequency Options 292 Deploying Wireless LANs 293 Types of WLANs 293 IBSS 293 BSS 294 ESS 295 Mesh Topology 295 Sources of Interference 296 Wireless AP Placement 297 Securing Wireless LANs 299 Security Issues 299 Approaches to WLAN Security 300 Security Standards 303 WPA2 303 WPA3 303 Additional Wireless Options 3
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