CompTIA Network+ N10-005 Simulator
Published on 6. June 2013
Software
DVD-ROM
978-0-7897-5176-8 (ISBN)
Description
Gain hands-on experience for the CompTIA Network+ N10-005 exam without having to invest heavily in hardware, software, or other equipment with this Network+ Simulator from Pearson IT Certification, a leader in IT Certification learning and a CompTIA Authorized Platinum Partner.
Limited Time Offer: Buy CompTIA Network+ N10-005 Simulator and receive a 10% off discount code for the CompTIA Network+ N10-005 exam. To receive your 10% off discount code:
Register your product at pearsonITcertification.com/register
Follow the instructions
Go to your Account page and click on "Access Bonus Content"
The Simulator Series from Pearson IT Certification are the most effective simulators for hands-on skills enhancement and is the perfect learning product to help you prepare for CompTIA's newly introduced performance-based questions. CompTIA's performance-based questions require exam candidates to perform a task or solve a problem within a simulated IT environment to demonstrate specific knowledge or skills.
Covers all Network + N10-005 objectives
Includes coverage of the new performance based questions
153 hands-on labs
Five different types of labs
More than four hours of LiveLessons video training ($150 value)
CompTIA Network+ N10-005 Simulator helps you reinforce Network+ exam topics and develop and enhance the hands-on skills you will need to succeed on the exam and on the job. This state-of-the-art, interactive simulation software presents you with more than 150 challenging labs that help you learn by doing, which is the most effective method of learning.
Experience realistic operating system and network device response as you work through each of the labs, which include detailed instructions, hints, and solution. Manipulate cables and other hardware and organize network devices on network topology maps. All Network+ N10-005 exam topics are covered, including networking concepts, network installation and configuration, network media and topologies, network management, and network security.
The labs are divided into five different types. Matching labs help you develop a mental map of concepts, enhancing retention and recall. Drag and Drop exercises allow you to work with physical cables and equipment and network designs. Command Line Interface (CLI) labs allow you to get hands-on experience configuring Cisco routers and switches. Graphical User Interface (GUI) labs allow you to work through common Windows 7, Windows Server 2008, Linux, and Linksys router configuration tasks. Worksheet exercises help you master numbering system conversions. Most labs conclude with Think About It sections to help you develop critical thinking skills and delve deeper into the concepts you are learning in the lab activities. You can save your grades on each lab in PDF format, and the software tracks your progress on each lab, so you always know exactly where you are in your studies.
In addition to the wealth of hands-on exercises, this software comes complete with more than four hours of video training by expert instructor Anthony Sequeira.
This unique simulation software helps you master the hands-on skills needed to succeed on the Network+ exam. Topics covered include:
OSI and TCP/IP models
Addressing methods and formats
Routing and switching
Networking protocols
DNS concepts
Troubleshooting
Virtual network components
Wireless networking
DHCP
SOHO networking
Media and connector types
LAN and WAN technologies
Network topologies
Wiring distribution
Network monitoring, management, and optimization
Common threats and vulnerabilities
Wireless security
Network access security and user authentication
Firewall installation
Security appliances and methods
System requirements:
Microsoft Windows XP (SP2/SP3), Windows Vista (32-bit/64-bit) with SP1, or Windows 7 (32-bit/64-bit), Mac OS X 10.6 or 10.7
Intel (R) Pentium (R) III 1GHz or faster processor (Windows) or Intel Core (TM) Duo 1.83GHz or faster processor (Mac)
512 MB RAM (1 GB Recommended)
1.5 GB Hard Disk Space
32-bit color depth at 1024 x 768 resolution
Adobe Acrobat Reader version 8.0 or higher
Connection to the Internet during installation for access code validation
Limited Time Offer: Buy CompTIA Network+ N10-005 Simulator and receive a 10% off discount code for the CompTIA Network+ N10-005 exam. To receive your 10% off discount code:
Register your product at pearsonITcertification.com/register
Follow the instructions
Go to your Account page and click on "Access Bonus Content"
The Simulator Series from Pearson IT Certification are the most effective simulators for hands-on skills enhancement and is the perfect learning product to help you prepare for CompTIA's newly introduced performance-based questions. CompTIA's performance-based questions require exam candidates to perform a task or solve a problem within a simulated IT environment to demonstrate specific knowledge or skills.
Covers all Network + N10-005 objectives
Includes coverage of the new performance based questions
153 hands-on labs
Five different types of labs
More than four hours of LiveLessons video training ($150 value)
CompTIA Network+ N10-005 Simulator helps you reinforce Network+ exam topics and develop and enhance the hands-on skills you will need to succeed on the exam and on the job. This state-of-the-art, interactive simulation software presents you with more than 150 challenging labs that help you learn by doing, which is the most effective method of learning.
Experience realistic operating system and network device response as you work through each of the labs, which include detailed instructions, hints, and solution. Manipulate cables and other hardware and organize network devices on network topology maps. All Network+ N10-005 exam topics are covered, including networking concepts, network installation and configuration, network media and topologies, network management, and network security.
The labs are divided into five different types. Matching labs help you develop a mental map of concepts, enhancing retention and recall. Drag and Drop exercises allow you to work with physical cables and equipment and network designs. Command Line Interface (CLI) labs allow you to get hands-on experience configuring Cisco routers and switches. Graphical User Interface (GUI) labs allow you to work through common Windows 7, Windows Server 2008, Linux, and Linksys router configuration tasks. Worksheet exercises help you master numbering system conversions. Most labs conclude with Think About It sections to help you develop critical thinking skills and delve deeper into the concepts you are learning in the lab activities. You can save your grades on each lab in PDF format, and the software tracks your progress on each lab, so you always know exactly where you are in your studies.
In addition to the wealth of hands-on exercises, this software comes complete with more than four hours of video training by expert instructor Anthony Sequeira.
This unique simulation software helps you master the hands-on skills needed to succeed on the Network+ exam. Topics covered include:
OSI and TCP/IP models
Addressing methods and formats
Routing and switching
Networking protocols
DNS concepts
Troubleshooting
Virtual network components
Wireless networking
DHCP
SOHO networking
Media and connector types
LAN and WAN technologies
Network topologies
Wiring distribution
Network monitoring, management, and optimization
Common threats and vulnerabilities
Wireless security
Network access security and user authentication
Firewall installation
Security appliances and methods
System requirements:
Microsoft Windows XP (SP2/SP3), Windows Vista (32-bit/64-bit) with SP1, or Windows 7 (32-bit/64-bit), Mac OS X 10.6 or 10.7
Intel (R) Pentium (R) III 1GHz or faster processor (Windows) or Intel Core (TM) Duo 1.83GHz or faster processor (Mac)
512 MB RAM (1 GB Recommended)
1.5 GB Hard Disk Space
32-bit color depth at 1024 x 768 resolution
Adobe Acrobat Reader version 8.0 or higher
Connection to the Internet during installation for access code validation
More details
Language
English
Place of publication
Upper Saddle River
United States
Publishing group
Pearson Education (US)
Target group
Professional and scholarly
Illustrations
sound, colour
Dimensions
Height: 230 mm
Width: 191 mm
Thickness: 33 mm
Weight
196 gr
ISBN-13
978-0-7897-5176-8 (9780789751768)
Copyright in bibliographic data and cover images is held by Nielsen Book Services Limited or by the publishers or by their respective licensors: all rights reserved.
Schweitzer Classification
Other editions
Previous edition
Michael D. Taylor | Anthony Sequeira
CompTIA Network+ N10-005 Simulator
Software
10/2012
Pearson It Certification
€109.48
Article exhausted; check for reprint
Persons
Network+ Certified since 2003, Michael Taylor currently serves as Computer Sciences Department Head for a career college in the eastern United States where he has taught for the past ten years. In his role as a technical instructor, he won the Instructor of the Year award from his superiors and Instructor of the Quarter award from students multiple times. In addition to a Bachelor's degree in Business Administration from The University of North Carolina at Chapel Hill, Mr. Taylor holds a Master's degree in Industrial Technology with a concentration in Computer Network Management from East Carolina University in Greenville, North Carolina.
He has also held A+, MCSE, and multiple Cisco certifications. He has been a technical reviewer multiple volumes of the the Cisco Networking Academy textbook series. Most recently he authored the A+ Certification Instructor's Guide as well as the Network+ Certification Instructor's Guide.
Anthony Sequeira formally began his career in the Information Technology industry in 1994 with IBM in Tampa, Florida. He quickly formed his own computer consultancy, Computer Solutions, and then discovered his true passion - teaching and writing about Microsoft and Cisco technologies. Anthony joined Mastering Computers in 1996 and lectured to massive audiences around the world about the latest in computer technologies. Mastering Computers became the revolutionary online training company, KnowledgeNet, and Anthony trained there for many years. Anthony is currently pursuing his second CCIE in the area of Security and is a full-time instructor for the next-generation of KnowledgeNet - StormWind Live.
He has also held A+, MCSE, and multiple Cisco certifications. He has been a technical reviewer multiple volumes of the the Cisco Networking Academy textbook series. Most recently he authored the A+ Certification Instructor's Guide as well as the Network+ Certification Instructor's Guide.
Anthony Sequeira formally began his career in the Information Technology industry in 1994 with IBM in Tampa, Florida. He quickly formed his own computer consultancy, Computer Solutions, and then discovered his true passion - teaching and writing about Microsoft and Cisco technologies. Anthony joined Mastering Computers in 1996 and lectured to massive audiences around the world about the latest in computer technologies. Mastering Computers became the revolutionary online training company, KnowledgeNet, and Anthony trained there for many years. Anthony is currently pursuing his second CCIE in the area of Security and is a full-time instructor for the next-generation of KnowledgeNet - StormWind Live.
Content
Hands-on Lab Activities:
1.0: Networking Concepts 1. TCP/IP Model Layer Matching 2. TCP/IP Protocols and Functions 3. OSI Model Layer Functions 4. Transport Layer Header Fields 5. Network Layer Header Fields 6. Data Link Layer Fields 7. Distinguishing between Applications and Protocols 8. OSI Model Layer and Network Devices 9. Understanding Data Encapsulation 10. Application Layer Network Server Descriptions 11. Reference Model Terminology 12. Network Numbering Systems - Conversions 13. Network Numbering Systems - Adding 14. Binary Adding 15. Network Numbering Review Practice 16. Identify Parts of an IPv4 and IPv6 Address 17. Network Addressing Terminology 18. IPv4 Address Types and Classes 19. Calculating the Number of Hosts in a Given Network 20. Discovering the Network Number for a Given Host 21. IPv6 Addressing Terminology 22. IPv6 Header Field Descriptions 23. IPv6 Header Field Positioning 24. IPv6 Address Format Prefix Types and Descriptions 25. Truncating IPv6 Addresses 26. IPv6 Network Numbering 27. Summary Review of Header Fields 28.Determining if Two Computers Are on the Same Logical Network in IPv4 29. IPv4 Allocating Bits for Network Addresses 30. IPv4 - Create a Custom Subnet Mask (Part 1 ) 31. IPv4 - Creating a Custom Subnet Mask (Part 2) 32. IPv4 - Using Variable Length Subnet Masks 33. IPv4 Scenario-based Test Applet 34.Intermediate IPv4 Addressing Practice 1 35.Intermediate IPv4 Addressing Practice 2 36. IPv4 Advanced - Route Aggregation Planning 37. Routing Protocols 38. Routed Protocols 39. Matching Well-Known Port Numbers 40. Network Application Protocols 41. Configuring an FTP Server 42. Configuring an FTP Client 43. Configuring an Email Client 44. Domain Name Services Terminology 45. Configuring Static Hostname Resolution on a Workstation 46. Using NSLookup for DNS Troubleshooting 47. DNS Troubleshooting Simulation 48. Reordering Troubleshooting Steps 49. Troubleshooting Practice 50. Virtualization Terminology 51. Workstation Virtualization 52. Server Virtualization Planning 53. Contrast Virtualization Technologies and Services 2.0 Network Installation and Configuration 54. Connect to a Switch Console Port and Set the Hostname 55. Connect to a Switch and Reconfigure the Hostname and Password 56. Configure an IP Address on a Switch with a Default Gateway 57. Switch Management via Telnet 58. Understanding Switching Loops 59. Choosing and Configuring a Root Switch 60. Configuring Switched VLANs and Trunk Ports 61. Configuring Port Security 62. Spanning Tree Port Identification 63. Connecting to the Router's Console Port 64. Configuring Hostname and Passwords 65. Configuring an Ethernet Interface on a Router 66. Using the Show Run Command to Read the Current Configuration 67. 'show' Commands Useful for Troubleshooting Common Router Problems 68. Connecting Two Routers to Each Other 69. Verifying a Router-to-Router Connection with Cisco Discovery Protocol 70. Saving the Router or Switch Configuration 71.: Static and Default Routing 72. Configuring InterVLAN Routing 73. Configuring Dynamic Routing 74. Reading a Routing Table 75. Configure Small Office/Home Office Router for Basic Operation 76. Matching Antenna Types 77. Wireless Antenna Placement 78. Using a Static Address on a Small Office/Home Office Router 79. DHCP Technology 80. Details of DHCP Client Address Configuration Process 81. Configuring Small Office/Home Office Router- Network User Security Settings 82. Manually Configuring Wireless Signals on a Small Office/Home Office Router 83. Configuring a Wireless USB Network Adapter to Connect to a Wireless Router 84. Using NetSh to scan for wireless networks 85. Configuring a Network Adapter with an IPv6 Address 86. Configuring Access Restrictions on a Small Business/Home Office Router 87. Configuring Port Forwarding to Local Services on a Small Office/Home Office Router 88. Address Translation Terminology 89. Configuring a Connection to a Network Printer 90. Mapping a Network Drive to the Desktop 91. Configuring a Client Network Adapter with an IPv4 Address 3.0 Network Media and Topologies 92. Media Types and Properties 93. Matching Transceiver Port Functions for Category 5 Cabling 94. Matching Cable to Wire Length 95. Create a Straight Cable and Test It 96. Create a Crossover Cable 97. Configuring a Network Adapter with an IP Address 98. Making a Direct Connection Between Two PCs 99. Verify a Data Link Connection from a Computer to a Network 100. Demonstrate Appropriate Wired Network Connections Between Device Pairs 101. Drag and Drop Appropriate Cables into a Topology 102. Fiber Optic Cabling, Connectors, and Uses 103. Connecting Campus Area Distribution Facilities to Each Other 104. Matching Wireless Standards and Terminology 105. Matching DSL types with descriptions 106. Matching Broadband Terminology with Descriptions 107. Wide Area Networking Technology 108. Network Topologies 109. Network Types 110. Identify Common Cat5 Wiring Problems 111. IEEE Local Area Network Wire Standards 112. IEEE LAN Standards and Technologies 113. Components of Wiring Distribution Systems 114. Network Infrastructure Component Placement 4.0 Network Management 115. Functions of Network Appliances/Management Software 116. Hardware Tools and Functions 117. Use of the ipconfig Command with Available Options 118. Using ipconfig to Discover Network Settings 119. Using ping to Troubleshoot Connectivity 120. Using extended ping (Command Switches) to Troubleshoot Connectivity 121. Using ARP to Discover a MAC Address 122. Using tracert to Troubleshoot Connectivity 123. Using netstat to Troubleshoot Connectivity 124. Using ipconfig, ping, arp, and tracert Together to Troubleshoot Connectivity 125. Using the route print Command 126. Using Basic Linux Troubleshooting Commands 127. Identifying Troubleshooting Commands to Use for Various Tasks 128. Matching Command Output to Commands 129. Understanding SNMP Functions and Terminology 130. Identifying Network Monitoring Databases and Logs Based on Need 131. Network Documentation 132. Identifying Network Performance Terminology 5.0 Network Security 133. Security Terminology and Descriptions 134. Wireless Security Terminology 135. Remote Access Terminology 136. VPN Terminology 137. Tunneling Terminology 138. Matching Authentication Terminology with Descriptions 139. Password and Authentication Methodology 140. Creating Network Users on a Domain Controller 141. Secure Protocols vs. Unsecure Protocols 142. Creating a Local Login Database to Secure Access to a Router 143. Network Vulnerabilities the Hacker and Network Admin Perspectives 144. Types of Network Threats and Attacks 145. Network Protection Mechanisms 146. Firewall Terminology and Functions 147. Folder Sharing and Security 148. Resource Security through a Domain Controller 149. Data Storage and Disaster Recovery Concepts 150. Using Encrypting File System (EFS) to Encrypt Data Files 151. Configuring a VPN Client 152. Small Office/Home Office Router: Wireless MAC Access Security 153. Security Appliance Terminology and Methods
Video Lessons:
Lesson 1: The OSI and TCP/IP Models Lesson 2: IPv4 and IPv6 Addressing Lesson 3: IPv4 Subnetting Lesson 4: Router and Switch Setup Lesson 5: routing and Routing Protocols Lesson 6: Common Networking Problems Lesson 7: Network Troubleshooting Lesson 8: Virtual Networking Lesson 9: Wireless Networking Lesson 10: Networking Media Lesson 11: Networking Topologies Lesson 12: Network Management Tools and Techniques Lesson 13: SNMP Lesson 14: Quality of Service (QoS) Lesson 15: Common Network Attacks and Mitigation Lesson 16: Securing Wireless Lesson 17: Firewalls and Intrusion Prevention Systems Lesson 18: VPNs
1.0: Networking Concepts 1. TCP/IP Model Layer Matching 2. TCP/IP Protocols and Functions 3. OSI Model Layer Functions 4. Transport Layer Header Fields 5. Network Layer Header Fields 6. Data Link Layer Fields 7. Distinguishing between Applications and Protocols 8. OSI Model Layer and Network Devices 9. Understanding Data Encapsulation 10. Application Layer Network Server Descriptions 11. Reference Model Terminology 12. Network Numbering Systems - Conversions 13. Network Numbering Systems - Adding 14. Binary Adding 15. Network Numbering Review Practice 16. Identify Parts of an IPv4 and IPv6 Address 17. Network Addressing Terminology 18. IPv4 Address Types and Classes 19. Calculating the Number of Hosts in a Given Network 20. Discovering the Network Number for a Given Host 21. IPv6 Addressing Terminology 22. IPv6 Header Field Descriptions 23. IPv6 Header Field Positioning 24. IPv6 Address Format Prefix Types and Descriptions 25. Truncating IPv6 Addresses 26. IPv6 Network Numbering 27. Summary Review of Header Fields 28.Determining if Two Computers Are on the Same Logical Network in IPv4 29. IPv4 Allocating Bits for Network Addresses 30. IPv4 - Create a Custom Subnet Mask (Part 1 ) 31. IPv4 - Creating a Custom Subnet Mask (Part 2) 32. IPv4 - Using Variable Length Subnet Masks 33. IPv4 Scenario-based Test Applet 34.Intermediate IPv4 Addressing Practice 1 35.Intermediate IPv4 Addressing Practice 2 36. IPv4 Advanced - Route Aggregation Planning 37. Routing Protocols 38. Routed Protocols 39. Matching Well-Known Port Numbers 40. Network Application Protocols 41. Configuring an FTP Server 42. Configuring an FTP Client 43. Configuring an Email Client 44. Domain Name Services Terminology 45. Configuring Static Hostname Resolution on a Workstation 46. Using NSLookup for DNS Troubleshooting 47. DNS Troubleshooting Simulation 48. Reordering Troubleshooting Steps 49. Troubleshooting Practice 50. Virtualization Terminology 51. Workstation Virtualization 52. Server Virtualization Planning 53. Contrast Virtualization Technologies and Services 2.0 Network Installation and Configuration 54. Connect to a Switch Console Port and Set the Hostname 55. Connect to a Switch and Reconfigure the Hostname and Password 56. Configure an IP Address on a Switch with a Default Gateway 57. Switch Management via Telnet 58. Understanding Switching Loops 59. Choosing and Configuring a Root Switch 60. Configuring Switched VLANs and Trunk Ports 61. Configuring Port Security 62. Spanning Tree Port Identification 63. Connecting to the Router's Console Port 64. Configuring Hostname and Passwords 65. Configuring an Ethernet Interface on a Router 66. Using the Show Run Command to Read the Current Configuration 67. 'show' Commands Useful for Troubleshooting Common Router Problems 68. Connecting Two Routers to Each Other 69. Verifying a Router-to-Router Connection with Cisco Discovery Protocol 70. Saving the Router or Switch Configuration 71.: Static and Default Routing 72. Configuring InterVLAN Routing 73. Configuring Dynamic Routing 74. Reading a Routing Table 75. Configure Small Office/Home Office Router for Basic Operation 76. Matching Antenna Types 77. Wireless Antenna Placement 78. Using a Static Address on a Small Office/Home Office Router 79. DHCP Technology 80. Details of DHCP Client Address Configuration Process 81. Configuring Small Office/Home Office Router- Network User Security Settings 82. Manually Configuring Wireless Signals on a Small Office/Home Office Router 83. Configuring a Wireless USB Network Adapter to Connect to a Wireless Router 84. Using NetSh to scan for wireless networks 85. Configuring a Network Adapter with an IPv6 Address 86. Configuring Access Restrictions on a Small Business/Home Office Router 87. Configuring Port Forwarding to Local Services on a Small Office/Home Office Router 88. Address Translation Terminology 89. Configuring a Connection to a Network Printer 90. Mapping a Network Drive to the Desktop 91. Configuring a Client Network Adapter with an IPv4 Address 3.0 Network Media and Topologies 92. Media Types and Properties 93. Matching Transceiver Port Functions for Category 5 Cabling 94. Matching Cable to Wire Length 95. Create a Straight Cable and Test It 96. Create a Crossover Cable 97. Configuring a Network Adapter with an IP Address 98. Making a Direct Connection Between Two PCs 99. Verify a Data Link Connection from a Computer to a Network 100. Demonstrate Appropriate Wired Network Connections Between Device Pairs 101. Drag and Drop Appropriate Cables into a Topology 102. Fiber Optic Cabling, Connectors, and Uses 103. Connecting Campus Area Distribution Facilities to Each Other 104. Matching Wireless Standards and Terminology 105. Matching DSL types with descriptions 106. Matching Broadband Terminology with Descriptions 107. Wide Area Networking Technology 108. Network Topologies 109. Network Types 110. Identify Common Cat5 Wiring Problems 111. IEEE Local Area Network Wire Standards 112. IEEE LAN Standards and Technologies 113. Components of Wiring Distribution Systems 114. Network Infrastructure Component Placement 4.0 Network Management 115. Functions of Network Appliances/Management Software 116. Hardware Tools and Functions 117. Use of the ipconfig Command with Available Options 118. Using ipconfig to Discover Network Settings 119. Using ping to Troubleshoot Connectivity 120. Using extended ping (Command Switches) to Troubleshoot Connectivity 121. Using ARP to Discover a MAC Address 122. Using tracert to Troubleshoot Connectivity 123. Using netstat to Troubleshoot Connectivity 124. Using ipconfig, ping, arp, and tracert Together to Troubleshoot Connectivity 125. Using the route print Command 126. Using Basic Linux Troubleshooting Commands 127. Identifying Troubleshooting Commands to Use for Various Tasks 128. Matching Command Output to Commands 129. Understanding SNMP Functions and Terminology 130. Identifying Network Monitoring Databases and Logs Based on Need 131. Network Documentation 132. Identifying Network Performance Terminology 5.0 Network Security 133. Security Terminology and Descriptions 134. Wireless Security Terminology 135. Remote Access Terminology 136. VPN Terminology 137. Tunneling Terminology 138. Matching Authentication Terminology with Descriptions 139. Password and Authentication Methodology 140. Creating Network Users on a Domain Controller 141. Secure Protocols vs. Unsecure Protocols 142. Creating a Local Login Database to Secure Access to a Router 143. Network Vulnerabilities the Hacker and Network Admin Perspectives 144. Types of Network Threats and Attacks 145. Network Protection Mechanisms 146. Firewall Terminology and Functions 147. Folder Sharing and Security 148. Resource Security through a Domain Controller 149. Data Storage and Disaster Recovery Concepts 150. Using Encrypting File System (EFS) to Encrypt Data Files 151. Configuring a VPN Client 152. Small Office/Home Office Router: Wireless MAC Access Security 153. Security Appliance Terminology and Methods
Video Lessons:
Lesson 1: The OSI and TCP/IP Models Lesson 2: IPv4 and IPv6 Addressing Lesson 3: IPv4 Subnetting Lesson 4: Router and Switch Setup Lesson 5: routing and Routing Protocols Lesson 6: Common Networking Problems Lesson 7: Network Troubleshooting Lesson 8: Virtual Networking Lesson 9: Wireless Networking Lesson 10: Networking Media Lesson 11: Networking Topologies Lesson 12: Network Management Tools and Techniques Lesson 13: SNMP Lesson 14: Quality of Service (QoS) Lesson 15: Common Network Attacks and Mitigation Lesson 16: Securing Wireless Lesson 17: Firewalls and Intrusion Prevention Systems Lesson 18: VPNs