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Internet of Things (IoT) Fundamentals LiveLessons
by Jerome Henry and Robert Barton
Published 5 November 2020
15 Hours of Expert Video Instruction
Overview
By 2020, more than 50 billion "Internet of Things" (IoT) devices will be connected to the Internet. Those connections are already enabling radically new business models, capabilities, and applications, making IoT knowledge indispensable for executives and technologists alike. The IoT Fundamentals LiveLessons video training course offers 10 hours of expert instruction on all the essentials-from sensors and connectivity to data analytics and key industry applications.
Leading Cisco IoT experts Robert Barton and Jerome Henry illuminate core IoT technologies, components, and the building blocks of IoT solutions. They explore IoT network architecture and security considerations, show how to leverage the power of immense IoT data flows, and introduce important IoT applications in several key vertical markets.
Barton and Henry's 19 well-organized lessons teach through real examples, easy-to-follow animations, and detailed audio explanations. Whatever your role in planning for, using, or building IoT technologies, IoT Fundamentals LiveLessons will help you start fast-and succeed.
Coverage includes
What IoT is and how it is transforming businesses
Common IoT challenges, building blocks, and architectures
Core IoT networking protocols, including the 802.15.4 and LPWA families
Models for protecting security and integrity in IoT networks
Simple, low-cost IoT networks for homes and small businesses
IPv6 adaptations for low power and lossy IoT networks
IoT management protocols, including CoAP, MQTT, and SCADA
Moving processing to the edge and to the "fog" layer
Using data analytics to maximize the value of IoT systems
Analyzing IoT data with Hadoop, Kafka, Spark, and the Hadoop ecosystem
Industry-specific techniques, smart objects, protocols, and analytic techniques
IoT for utilities, the smart grid, and energy efficiency
IoT for connected and self-driving cars, mass transit, and cargo transportation
IoT for manufacturing: reducing cost and accelerating delivery
IoT for smart and connected cities: lighting, parking, and public safety
IoT for safer, more efficient oil/gas production and mining
Skill Level
All levels
Learn How To
Plan, organize, build, and deploy end-to-end IoT solutions
Navigate today's IoT product marketplace
Use maturing IoT technologies to solve many business and technical problems
Make sense of the full IoT protocol stack, from 802.15.4 and LPWA to IPv6 adaptations and management
Architect IoT networks for maximum security and integrity
Generate meaningful intelligence from the data your smart objects capture
Compare and use batch-level and real-time streaming analytics
Improve IoT system efficiency through fog and edge computing
Leverage key IoT applications for utilities, transportation, manufacturing, smart cities, public safety, oil/gas production, and mining
Who Should Take This Course
For wide audiences of IT, operations, and business professionals who want to plan for, deploy, secure, and leverage the benefits of IoT technologies. This course's case study applications will have special appeal to professionals in a wide range of industries, including municipal and other government operations; building management; power, water, and gas utility engineering; transportation; telecommunications; manufacturing; energy, and many others.
Course Requirements
Requires basic knowledge of Internet and networking technology.
Table of Contents
Module 1: What is the Internet of Things?:
Lesson 1: An Introduction to IoT:
Lesson 2: IoT Architectures:
Module 2: Building an IoT Network:
Lesson 3: Sensors and Actuators:
Lesson 4: Connecting IoT Devices over Wireless with IEEE 802.15.4:
Lesson 5: Low Power Wide Area Networks (LPWANs):
Lesson 6: IoT Connectivity for the Home Network:
Lesson 7: IPv6 Fundamentals for IoT:
Lesson 8: Management Protocols for IoT
Lesson 9: IoT Security:
Module 3: Harnessing the Data from IoT Devices:
Lesson 10: An Introduction to Analytics:
Lesson 11: Fog and Edge Computing:
Lesson 12: Data Analytics Architectures:
Module 4: IoT Considerations for Industry:
Lesson 13: Utilities and the Smart Grid:
Lesson 14: IoT for Transportation:
Lesson 15: Manufacturing:
Lesson 16: IoT for Connected and Smart Cities:
Lesson 17: IoT for Public Safety:
Lesson 18: Oil and Gas:
Lesson 19: IoT for Mining:
About Pearson Video Training
Pearson's expert-led video tutorials teach you the technology skills you need to succeed. These professional and personal technology videos feature world-leading author instructors published by your trusted technology brands: Addison-Wesley, Cisco Press, Pearson IT Certification, Prentice Hall, Sams, and Que. Topics include: IT certification, programming, web and mobile development, networking, security, and more. Learn more about Pearson Video training at http://www.informit.com/video
Overview
By 2020, more than 50 billion "Internet of Things" (IoT) devices will be connected to the Internet. Those connections are already enabling radically new business models, capabilities, and applications, making IoT knowledge indispensable for executives and technologists alike. The IoT Fundamentals LiveLessons video training course offers 10 hours of expert instruction on all the essentials-from sensors and connectivity to data analytics and key industry applications.
Leading Cisco IoT experts Robert Barton and Jerome Henry illuminate core IoT technologies, components, and the building blocks of IoT solutions. They explore IoT network architecture and security considerations, show how to leverage the power of immense IoT data flows, and introduce important IoT applications in several key vertical markets.
Barton and Henry's 19 well-organized lessons teach through real examples, easy-to-follow animations, and detailed audio explanations. Whatever your role in planning for, using, or building IoT technologies, IoT Fundamentals LiveLessons will help you start fast-and succeed.
Coverage includes
What IoT is and how it is transforming businesses
Common IoT challenges, building blocks, and architectures
Core IoT networking protocols, including the 802.15.4 and LPWA families
Models for protecting security and integrity in IoT networks
Simple, low-cost IoT networks for homes and small businesses
IPv6 adaptations for low power and lossy IoT networks
IoT management protocols, including CoAP, MQTT, and SCADA
Moving processing to the edge and to the "fog" layer
Using data analytics to maximize the value of IoT systems
Analyzing IoT data with Hadoop, Kafka, Spark, and the Hadoop ecosystem
Industry-specific techniques, smart objects, protocols, and analytic techniques
IoT for utilities, the smart grid, and energy efficiency
IoT for connected and self-driving cars, mass transit, and cargo transportation
IoT for manufacturing: reducing cost and accelerating delivery
IoT for smart and connected cities: lighting, parking, and public safety
IoT for safer, more efficient oil/gas production and mining
Skill Level
All levels
Learn How To
Plan, organize, build, and deploy end-to-end IoT solutions
Navigate today's IoT product marketplace
Use maturing IoT technologies to solve many business and technical problems
Make sense of the full IoT protocol stack, from 802.15.4 and LPWA to IPv6 adaptations and management
Architect IoT networks for maximum security and integrity
Generate meaningful intelligence from the data your smart objects capture
Compare and use batch-level and real-time streaming analytics
Improve IoT system efficiency through fog and edge computing
Leverage key IoT applications for utilities, transportation, manufacturing, smart cities, public safety, oil/gas production, and mining
Who Should Take This Course
For wide audiences of IT, operations, and business professionals who want to plan for, deploy, secure, and leverage the benefits of IoT technologies. This course's case study applications will have special appeal to professionals in a wide range of industries, including municipal and other government operations; building management; power, water, and gas utility engineering; transportation; telecommunications; manufacturing; energy, and many others.
Course Requirements
Requires basic knowledge of Internet and networking technology.
Table of Contents
Module 1: What is the Internet of Things?:
Lesson 1: An Introduction to IoT:
Lesson 2: IoT Architectures:
Module 2: Building an IoT Network:
Lesson 3: Sensors and Actuators:
Lesson 4: Connecting IoT Devices over Wireless with IEEE 802.15.4:
Lesson 5: Low Power Wide Area Networks (LPWANs):
Lesson 6: IoT Connectivity for the Home Network:
Lesson 7: IPv6 Fundamentals for IoT:
Lesson 8: Management Protocols for IoT
Lesson 9: IoT Security:
Module 3: Harnessing the Data from IoT Devices:
Lesson 10: An Introduction to Analytics:
Lesson 11: Fog and Edge Computing:
Lesson 12: Data Analytics Architectures:
Module 4: IoT Considerations for Industry:
Lesson 13: Utilities and the Smart Grid:
Lesson 14: IoT for Transportation:
Lesson 15: Manufacturing:
Lesson 16: IoT for Connected and Smart Cities:
Lesson 17: IoT for Public Safety:
Lesson 18: Oil and Gas:
Lesson 19: IoT for Mining:
About Pearson Video Training
Pearson's expert-led video tutorials teach you the technology skills you need to succeed. These professional and personal technology videos feature world-leading author instructors published by your trusted technology brands: Addison-Wesley, Cisco Press, Pearson IT Certification, Prentice Hall, Sams, and Que. Topics include: IT certification, programming, web and mobile development, networking, security, and more. Learn more about Pearson Video training at http://www.informit.com/video
More than 21 hours of video training covering all of the objectives in the CCNA Wireless WIFUND 200-355 exam. Includes 240 interactive practice quizzes, 12 glossary quizzes, and 24 dynamic hands-on exercises and multi-step simulations so you can practice what you learn and assess your skills.
The CCNA Wireless 200-355 Complete Video Course is a unique video product that provides users with more than 21 hours of personal, visual instruction from wireless expert and instructor Jerome Henry. Video lessons cover all objectives on the CCNA Wireless; WIFUND 200-355 exam. With 240 practice questions, 12 glossary quizzes, and 24 dynamic hands-on exercises and simulations, the CCNA Wireless 200-355 Complete Video Course offers you everything you need to study for and pass the exams.
The unique video product contains a series of short instructional videos that demonstrates the process of designing, surveying, deploying, configuring, and troubleshooting Cisco Wi-Fi networks. The videos cover the full range of topics you need to understand Wi-Fi, manage a wireless network, and successfully prepare for the CCNA Wireless certification.
CCNA Wireless 200-355 Complete Video Course contains 12 modules, subdivided into 50 lessons and 210 sub-lessons, for a total of more than 21 hours of instruction. The videos consist of audio instruction and animations. Each video presents detailed objectives and video captures. Audio instruction throughout offers detailed explanations and tips. Interactive exercises and quizzes are also included in this title.
Coverage includes:
Module 1: RF Communications
Module 2: 802.11 Communications
Module 3: Wi-Fi Site Surveys
Module 4: Wi-Fi Security Fundamentals
Module 5: Cisco Wireless Architectures
Module 6: Autonomous AP Implementation
Module 7: Cloud Wi-Fi Implementation
Module 8: Centralized Wireless Implementation
Module 9: FlexConnect Wireless Implementations
Module 10: Converged Access Implementation
Module 11: Client Configuration
Module 12: Wireless Infrastructure Maintenance and Troubleshooting
Skill Level
* Beginner to Intermediate
What You Will Learn
* Learn about every objective in the CCNA Wireless 200-355 exam
* Module 1: RF Communications
* Module 2: 802.11 Communications
* Module 3: Wi-Fi Site Surveys
* Module 4: Wi-Fi Security Fundamentals
* Module 5: Cisco Wireless Architectures
* Module 6: Autonomous AP Implementation
* Module 7: Cloud Wi-Fi Implementation
* Module 8: Centralized Wireless Implementation
* Module 9: FlexConnect Wireless Implementations
* Module 10: Converged Access Implementation
* Module 11: Client Configuration
* Module 12: Wireless Infrastructure Maintenance and Troubleshooting
Who Should Take This Course
* CCNA Wireless certification candidates, including administrators, technicians, and network engineers who are responsible for deploying, configuring, and troubleshooting 802.11 wireless networks.
* Engineers involved in 802.11 wireless management
* Any individual wishing to get a deeper understanding of 802.11 to better administrate and troubleshoot 802.11 wireless networks.
New Player Enables Streaming and Download Access
Now you can stream and download videos for unlimited 24/7 online/offline access and ownership.
Streaming - Watch instantly as the video streams online in real time; after purchase simply click "Watch Now" to get started.
Download - Download video files for offline viewing anytime, anywhere; after purchase simply click the download icon within the player and follow the prompts.
Plus, enjoy new player features that track your progress and help you navigate between modules.
Table of Contents
Module 1: RF Communications
Wi-Fi networks use radio waves, and you cannot understand Wi-Fi without understanding radio waves. This module covers the fundamentals of radio communications: how waves are transmitted, what they look like, what can affect them as they travel between your AP and wireless clients, but also how you measure them in terms of frequencies and power, so as to know what kind of performances your Wi-Fi clients might be able to get. At the end of this module, you will know about the multiple frequency bands where Wi-Fi can operate, but also the differences in regulations from one country to the next. You will also be able to read an antenna radiation pattern chart; to understand where your signal is going to propagate. You cannot see RF, so we built this module to give you as many practical analogies as possible, to help you sense how waves operate, even if you can't see them.
Lesson 1: Analyzing RF Propagation
Wi-Fi uses RF signals. As soon as these signals leave your antenna, they get affected by the environment. This lesson looks at RF propagation, how a wave moves from one place to another. To understand waves, we will first look at how a wave is described and its characteristics. We will then look at what happen to that wave as it moves. You will be able to use this information not only for Wi-Fi designs, but also to understand the characteristics of any radio transmissions, from cellular to radio or TV.
Lesson 2: Mastering Basic RF Math
Don't fear, this is not a dry math lesson! Of course, math is the heart of physics, and Wi-Fi follows the laws of physics...and you need to follow them to understand how much power your access point is allowed to inject into its antenna and how far your signal can go if you use this or that antenna. So this lesson aims at giving you mental math shortcuts that will prove useful when you need to compare antennas, compare cells, compare signals at different frequencies, or even compare the performances of clients.
Lesson 3: Measuring RF Signals
After you understand the basics of RF propagation, you soon realize that the energy the wireless clients receive is very faint. This lesson will help you understand how the received energy is measured, and how it is compared to the environmental noise. This will help you evaluate the possibilities of various Wi-Fi client types, from laptops to phones or tables. With this information in hand, you will be able to better build a wireless cell that provides an optimal signal for all the clients you intend to include.
Lesson 4: Connecting Antennas
Most access points come from a default antenna, that translate in a cell of a particular shape and size. But changing the antenna allows you to modify that shape, to provide coverage in specific areas, while isolating your system from neighboring signals. Choosing the right antenna implies understanding antenna types and characteristics. This lesson will help you master the radiation patterns used by antenna vendors to describe their antennas. This lesson will also help you choose the right antenna for the right type of coverage, while making sure that you respect the rules of maximum radiated signal strength.
Lesson 5: Understanding RF Transmission Regulations
ITU, IEEE, WI-FI Alliance, FCC, ETSI...many organizations have roles that influence what your access points and wireless clients can send and receive. This lesson will help you navigate the role of these organizations. At the end of this lesson, you will have a clear understanding of what frequencies and powers are allowed for Wi-Fi, who decided of these rules, and how these different organizations interconnect to determine what your Wi-Fi network can and cannot do.
Module 2: 802.11 Communications
Now that you understand radio waves, it is time to give a closer look at Wi-Fi-specific transmissions. There are multiple ways of transmitting 0s and 1s in a radio wave. In this module, you will learn the choices that the 802.11 designers have made for such transmissions. You will learn how Wi-Fi transmits data, but also all the accompanying frames and mechanisms behind these transmissions. This module will help you understand why Wi-Fi works, why (sometimes) it does not work, and the reasons behind Wi-Fi transmission possibilities and limitations.
Lesson 1: Describing Spread Spectrum Transmissions
You will read everywhere that Wi-Fi uses Spread Spectrum transmissions-what does this mean? There are several ways to represent 0s and 1s in a radio wave, each with its advantages and limitations. In this lesson, you will learn the techniques that Wi-Fi uses. This knowledge will help you understand why and how data rates are related to distance, but also why Wi-Fi can bond channels together. You will be able to use this knowledge to decipher terms behind 802.11ac, such as MU-MIMO and channel reuse.
Lesson 2: Connecting Wi-Fi Devices
Now that you understand Wi-Fi transmission, it is time to connect devices to one another. In this lesson, we will explore the different Wi-Fi topologies: direct connections through ad-hoc and Wi-Fi direct, but also infrastructure mode and all its associated terms-SSID, BSSID, MBSSID, DS, ESS. At the end of this lesson, you will also understand the various roles that access points and stations can play in a wireless choreography, including bridging, mesh, and repeater roles.
Lesson 3: Accessing the Wireless Medium
Access points and stations can send frames whenever they need, but Wi-Fi has some rules in place to avoid, as best as possible, frame collisions in the air. In this lesson, you will learn the access methods behind Wi-Fi transmissions, and the various frames in place to avoid smooth communications. You will also learn the challenges of implementing decentralized access methods, and why this implementation choice not only made the success of Wi-Fi, but also created fundamental incompatibilities with other technologies, for example with LTE.
Lesson 4: Describing 802.11 Speed and Channel Protocols
In the 15 years of Wi-Fi development, one primary effort was to increase transmission speeds. This is how amendments like 802.11b, 802.11g, 802.11a, 802.11n, 802.11ac or 802.11ax were developed. In this lesson, you will learn what these amendments bring to Wi-Fi communication, but also what issues and limitations new protocols bring to the older ones. You will also learn other enhancement techniques, such as MIMO, MU-MIMO, MRC, spatial streams and beamforming.
Module 3: Wi-Fi Site Surveys
Site surveys are at the heart of Wi-Fi deployments. As a CCNA, you may not be expected to plan and design for large deployments without support, but you are definitely expected to understand what site surveys are and how (if) they are done. This module will give you the tools you need to be proficient with site surveys, covering the various techniques at your disposal, the various requirements for standard deployment types, and also browsing to the site survey tools available for offsite and onsite surveys.
Lesson 1: Understanding Wi-Fi Application Requirements
Each survey type typically follows a standard process, built over years of shared experience and best practices from thousands of professionals worldwide. But a survey is nothing if you do not have clear performance objectives for your Wi-Fi coverage. This lesson will help you determine the type of cell you want to build, if you are designing for simple data traffic, or for voice, high bandwidth real time applications, high user density, or even location-based services.
Lesson 2: Describing Wi-Fi Site Survey Methodologies
Do you actually need to perform a site survey? And if so, what kind of site survey would you perform? It all depends on the phase of the deployment you are addressing. In this lesson, you will learn about the various phases in Wi-Fi deployment, and you will learn, for each phase, what type of survey can be performed and to achieve what purpose. This will help you determine if your network requires a site survey, or if it was properly designed.
Lesson 3: Describing Wi-Fi Survey Tools
Once you understand the site survey techniques and cell performance requirements, you need to choose one or several site survey tools. This lesson will give you an overview of the various tools available for each type of survey. Each tool is typically built for a specific purpose, giving it strengths and also limitations. This lesson will help you choose the best tool(s), to provide the information you need for each phase of your deployment.
Module 4: Wi-Fi Security Fundamentals
At this point of your Wireless CCNA journey, you understand radio waves, the specifics of 802.11 transmissions. You understand how to build a Wi-Fi cell, from the antenna choice to powers and performance requirements for each type of deployments. You also know how to perform a site survey to achieve these performance goals. It is time to add wireless clients to your design. But before doing so, you need to make sure that your network is secure. Wi-Fi has long been plagued by a reputation of being insecure. This reputation is undue, if you take the proper steps to apply modern security techniques to your cell... but your network can be a disaster if you apply techniques that are still available, but were designed for older networks. This module will provide you with the knowledge you need to apply proper Wi-Fi security, and make your Wi-Fi network more secure than most wired networks.
Lesson 1: Describing Wi-Fi Security Components
Security is achieved by applying a combination of factors that work together, from authentication to encryption, but also attack detection and prevention. Not all factors are needed for all networks. This lesson will guide you through the different elements of Wi-Fi security to help you chose the bricks you need to make your network secure, without gaps and also without any security excesses that create burden for your users or the wireless administrator, without adding a security layer that would be useful for the network you deployed.
Lesson 2: Describing Authentication Options
Authentication is the first phase you need to implement Wi-Fi security. However, it is quite a complex one, because there are many different possible techniques, each providing a different quality of security. To make things worse, not all clients and not all infrastructure support the same authentication techniques. This lesson will help you sort the various techniques, to understand how they work, what security confidence they can bring, and what support you can expect from the various types of clients and Cisco network deployments.
Lesson 3: Describing Encryption
Wi-Fi signals can travel far beyond the limits of your walls, and be captured by unwanted listeners. Therefore, a key to wireless security is to encrypt traffic. But just as computing technologies have evolved a lot over the last 15 years, Wi-Fi encryption technologies have also changed dramatically. This lesson will guide you through the modern encryption techniques that you need to implement, will help you recognize the obsolete technologies that should be avoided, and will also give you glimpse on what future technologies may bring to your network security.
Module 5: Cisco Wireless Architectures
It is now time to dive into Cisco wireless networks. Each network is a unique combination of needs, constraints and possibilities, and there are several wireless network types. As a CCNA Wireless, you are expected to be able to manage these networks, and also understand what deployment choice was made, and the reasons behind this choice. This module will help you navigate through the various components of wireless networks, and will also help you understand the various wireless architectures available today. You will also learn the common components of these architectures, in terms of management, security or protocols. You will also learn how to determine key elements of your deployment and configuration, such as channel plan, power or QoS management.
Lesson 1: Contrasting Wireless Architectures
There are all sorts of ways to build a wireless network, depending on the physical environment, the business requirements, the client types, the expected performances, but also the management needs. For these reasons, Cisco distinguishes 5 deployment types that you need to master. This lesson will guide you through these different types, and will also help you understand how these networks are managed and secured.
Lesson 2: Describing Wired Infrastructure Devices and Functions
Your wireless access points need to connect to switches. You may also implement Wireless LAN controllers to control these access points, creating an overlay to the wired infrastructure. You need to understand how the wireless infrastructure interacts with the wired infrastructure. This lesson will help you understand the various elements of the wireless infrastructure, from split MAC, control and data traffic, to Mobility Controller and Mobility Agent, and will also help you understand how switches and routers should be configured to interact with your wireless infrastructure.
Lesson 3: Describing Security Components
Security is key to wireless deployments, and this lesson will detail two security protocols that you need for your wireless networks management: TACACS and RADIUS. You will also learn the basics of Cisco Identity Services (ISE), the tool of choice to manage the secure access of your wireless users and devices.
Lesson 4: Describing Management Components
In small networks, you install access points. In larger networks, you also install Wireless LAN controllers to reduce the management touch points. When your network contains several Wireless LAN controllers, you may also need to centralize their management. This lesson will guide you through the principle of Cisco Prime Infrastructure, the management tool of choice for networks that use Wireless LAN controllers.
Lesson 5: Describing Radio Resource Management
RRM is one of the most central concepts in controller-based architectures, and you are expected to understand it well. In this lesson, you will learn what RRM does and why it is there. You will see how RRM controls AP channels and power, with DCA and TPC, but will also look more closely at the edge of the cell, where cl
The CCNA Wireless 200-355 Complete Video Course is a unique video product that provides users with more than 21 hours of personal, visual instruction from wireless expert and instructor Jerome Henry. Video lessons cover all objectives on the CCNA Wireless; WIFUND 200-355 exam. With 240 practice questions, 12 glossary quizzes, and 24 dynamic hands-on exercises and simulations, the CCNA Wireless 200-355 Complete Video Course offers you everything you need to study for and pass the exams.
The unique video product contains a series of short instructional videos that demonstrates the process of designing, surveying, deploying, configuring, and troubleshooting Cisco Wi-Fi networks. The videos cover the full range of topics you need to understand Wi-Fi, manage a wireless network, and successfully prepare for the CCNA Wireless certification.
CCNA Wireless 200-355 Complete Video Course contains 12 modules, subdivided into 50 lessons and 210 sub-lessons, for a total of more than 21 hours of instruction. The videos consist of audio instruction and animations. Each video presents detailed objectives and video captures. Audio instruction throughout offers detailed explanations and tips. Interactive exercises and quizzes are also included in this title.
Coverage includes:
Module 1: RF Communications
Module 2: 802.11 Communications
Module 3: Wi-Fi Site Surveys
Module 4: Wi-Fi Security Fundamentals
Module 5: Cisco Wireless Architectures
Module 6: Autonomous AP Implementation
Module 7: Cloud Wi-Fi Implementation
Module 8: Centralized Wireless Implementation
Module 9: FlexConnect Wireless Implementations
Module 10: Converged Access Implementation
Module 11: Client Configuration
Module 12: Wireless Infrastructure Maintenance and Troubleshooting
Skill Level
* Beginner to Intermediate
What You Will Learn
* Learn about every objective in the CCNA Wireless 200-355 exam
* Module 1: RF Communications
* Module 2: 802.11 Communications
* Module 3: Wi-Fi Site Surveys
* Module 4: Wi-Fi Security Fundamentals
* Module 5: Cisco Wireless Architectures
* Module 6: Autonomous AP Implementation
* Module 7: Cloud Wi-Fi Implementation
* Module 8: Centralized Wireless Implementation
* Module 9: FlexConnect Wireless Implementations
* Module 10: Converged Access Implementation
* Module 11: Client Configuration
* Module 12: Wireless Infrastructure Maintenance and Troubleshooting
Who Should Take This Course
* CCNA Wireless certification candidates, including administrators, technicians, and network engineers who are responsible for deploying, configuring, and troubleshooting 802.11 wireless networks.
* Engineers involved in 802.11 wireless management
* Any individual wishing to get a deeper understanding of 802.11 to better administrate and troubleshoot 802.11 wireless networks.
New Player Enables Streaming and Download Access
Now you can stream and download videos for unlimited 24/7 online/offline access and ownership.
Streaming - Watch instantly as the video streams online in real time; after purchase simply click "Watch Now" to get started.
Download - Download video files for offline viewing anytime, anywhere; after purchase simply click the download icon within the player and follow the prompts.
Plus, enjoy new player features that track your progress and help you navigate between modules.
Table of Contents
Module 1: RF Communications
Wi-Fi networks use radio waves, and you cannot understand Wi-Fi without understanding radio waves. This module covers the fundamentals of radio communications: how waves are transmitted, what they look like, what can affect them as they travel between your AP and wireless clients, but also how you measure them in terms of frequencies and power, so as to know what kind of performances your Wi-Fi clients might be able to get. At the end of this module, you will know about the multiple frequency bands where Wi-Fi can operate, but also the differences in regulations from one country to the next. You will also be able to read an antenna radiation pattern chart; to understand where your signal is going to propagate. You cannot see RF, so we built this module to give you as many practical analogies as possible, to help you sense how waves operate, even if you can't see them.
Lesson 1: Analyzing RF Propagation
Wi-Fi uses RF signals. As soon as these signals leave your antenna, they get affected by the environment. This lesson looks at RF propagation, how a wave moves from one place to another. To understand waves, we will first look at how a wave is described and its characteristics. We will then look at what happen to that wave as it moves. You will be able to use this information not only for Wi-Fi designs, but also to understand the characteristics of any radio transmissions, from cellular to radio or TV.
Lesson 2: Mastering Basic RF Math
Don't fear, this is not a dry math lesson! Of course, math is the heart of physics, and Wi-Fi follows the laws of physics...and you need to follow them to understand how much power your access point is allowed to inject into its antenna and how far your signal can go if you use this or that antenna. So this lesson aims at giving you mental math shortcuts that will prove useful when you need to compare antennas, compare cells, compare signals at different frequencies, or even compare the performances of clients.
Lesson 3: Measuring RF Signals
After you understand the basics of RF propagation, you soon realize that the energy the wireless clients receive is very faint. This lesson will help you understand how the received energy is measured, and how it is compared to the environmental noise. This will help you evaluate the possibilities of various Wi-Fi client types, from laptops to phones or tables. With this information in hand, you will be able to better build a wireless cell that provides an optimal signal for all the clients you intend to include.
Lesson 4: Connecting Antennas
Most access points come from a default antenna, that translate in a cell of a particular shape and size. But changing the antenna allows you to modify that shape, to provide coverage in specific areas, while isolating your system from neighboring signals. Choosing the right antenna implies understanding antenna types and characteristics. This lesson will help you master the radiation patterns used by antenna vendors to describe their antennas. This lesson will also help you choose the right antenna for the right type of coverage, while making sure that you respect the rules of maximum radiated signal strength.
Lesson 5: Understanding RF Transmission Regulations
ITU, IEEE, WI-FI Alliance, FCC, ETSI...many organizations have roles that influence what your access points and wireless clients can send and receive. This lesson will help you navigate the role of these organizations. At the end of this lesson, you will have a clear understanding of what frequencies and powers are allowed for Wi-Fi, who decided of these rules, and how these different organizations interconnect to determine what your Wi-Fi network can and cannot do.
Module 2: 802.11 Communications
Now that you understand radio waves, it is time to give a closer look at Wi-Fi-specific transmissions. There are multiple ways of transmitting 0s and 1s in a radio wave. In this module, you will learn the choices that the 802.11 designers have made for such transmissions. You will learn how Wi-Fi transmits data, but also all the accompanying frames and mechanisms behind these transmissions. This module will help you understand why Wi-Fi works, why (sometimes) it does not work, and the reasons behind Wi-Fi transmission possibilities and limitations.
Lesson 1: Describing Spread Spectrum Transmissions
You will read everywhere that Wi-Fi uses Spread Spectrum transmissions-what does this mean? There are several ways to represent 0s and 1s in a radio wave, each with its advantages and limitations. In this lesson, you will learn the techniques that Wi-Fi uses. This knowledge will help you understand why and how data rates are related to distance, but also why Wi-Fi can bond channels together. You will be able to use this knowledge to decipher terms behind 802.11ac, such as MU-MIMO and channel reuse.
Lesson 2: Connecting Wi-Fi Devices
Now that you understand Wi-Fi transmission, it is time to connect devices to one another. In this lesson, we will explore the different Wi-Fi topologies: direct connections through ad-hoc and Wi-Fi direct, but also infrastructure mode and all its associated terms-SSID, BSSID, MBSSID, DS, ESS. At the end of this lesson, you will also understand the various roles that access points and stations can play in a wireless choreography, including bridging, mesh, and repeater roles.
Lesson 3: Accessing the Wireless Medium
Access points and stations can send frames whenever they need, but Wi-Fi has some rules in place to avoid, as best as possible, frame collisions in the air. In this lesson, you will learn the access methods behind Wi-Fi transmissions, and the various frames in place to avoid smooth communications. You will also learn the challenges of implementing decentralized access methods, and why this implementation choice not only made the success of Wi-Fi, but also created fundamental incompatibilities with other technologies, for example with LTE.
Lesson 4: Describing 802.11 Speed and Channel Protocols
In the 15 years of Wi-Fi development, one primary effort was to increase transmission speeds. This is how amendments like 802.11b, 802.11g, 802.11a, 802.11n, 802.11ac or 802.11ax were developed. In this lesson, you will learn what these amendments bring to Wi-Fi communication, but also what issues and limitations new protocols bring to the older ones. You will also learn other enhancement techniques, such as MIMO, MU-MIMO, MRC, spatial streams and beamforming.
Module 3: Wi-Fi Site Surveys
Site surveys are at the heart of Wi-Fi deployments. As a CCNA, you may not be expected to plan and design for large deployments without support, but you are definitely expected to understand what site surveys are and how (if) they are done. This module will give you the tools you need to be proficient with site surveys, covering the various techniques at your disposal, the various requirements for standard deployment types, and also browsing to the site survey tools available for offsite and onsite surveys.
Lesson 1: Understanding Wi-Fi Application Requirements
Each survey type typically follows a standard process, built over years of shared experience and best practices from thousands of professionals worldwide. But a survey is nothing if you do not have clear performance objectives for your Wi-Fi coverage. This lesson will help you determine the type of cell you want to build, if you are designing for simple data traffic, or for voice, high bandwidth real time applications, high user density, or even location-based services.
Lesson 2: Describing Wi-Fi Site Survey Methodologies
Do you actually need to perform a site survey? And if so, what kind of site survey would you perform? It all depends on the phase of the deployment you are addressing. In this lesson, you will learn about the various phases in Wi-Fi deployment, and you will learn, for each phase, what type of survey can be performed and to achieve what purpose. This will help you determine if your network requires a site survey, or if it was properly designed.
Lesson 3: Describing Wi-Fi Survey Tools
Once you understand the site survey techniques and cell performance requirements, you need to choose one or several site survey tools. This lesson will give you an overview of the various tools available for each type of survey. Each tool is typically built for a specific purpose, giving it strengths and also limitations. This lesson will help you choose the best tool(s), to provide the information you need for each phase of your deployment.
Module 4: Wi-Fi Security Fundamentals
At this point of your Wireless CCNA journey, you understand radio waves, the specifics of 802.11 transmissions. You understand how to build a Wi-Fi cell, from the antenna choice to powers and performance requirements for each type of deployments. You also know how to perform a site survey to achieve these performance goals. It is time to add wireless clients to your design. But before doing so, you need to make sure that your network is secure. Wi-Fi has long been plagued by a reputation of being insecure. This reputation is undue, if you take the proper steps to apply modern security techniques to your cell... but your network can be a disaster if you apply techniques that are still available, but were designed for older networks. This module will provide you with the knowledge you need to apply proper Wi-Fi security, and make your Wi-Fi network more secure than most wired networks.
Lesson 1: Describing Wi-Fi Security Components
Security is achieved by applying a combination of factors that work together, from authentication to encryption, but also attack detection and prevention. Not all factors are needed for all networks. This lesson will guide you through the different elements of Wi-Fi security to help you chose the bricks you need to make your network secure, without gaps and also without any security excesses that create burden for your users or the wireless administrator, without adding a security layer that would be useful for the network you deployed.
Lesson 2: Describing Authentication Options
Authentication is the first phase you need to implement Wi-Fi security. However, it is quite a complex one, because there are many different possible techniques, each providing a different quality of security. To make things worse, not all clients and not all infrastructure support the same authentication techniques. This lesson will help you sort the various techniques, to understand how they work, what security confidence they can bring, and what support you can expect from the various types of clients and Cisco network deployments.
Lesson 3: Describing Encryption
Wi-Fi signals can travel far beyond the limits of your walls, and be captured by unwanted listeners. Therefore, a key to wireless security is to encrypt traffic. But just as computing technologies have evolved a lot over the last 15 years, Wi-Fi encryption technologies have also changed dramatically. This lesson will guide you through the modern encryption techniques that you need to implement, will help you recognize the obsolete technologies that should be avoided, and will also give you glimpse on what future technologies may bring to your network security.
Module 5: Cisco Wireless Architectures
It is now time to dive into Cisco wireless networks. Each network is a unique combination of needs, constraints and possibilities, and there are several wireless network types. As a CCNA Wireless, you are expected to be able to manage these networks, and also understand what deployment choice was made, and the reasons behind this choice. This module will help you navigate through the various components of wireless networks, and will also help you understand the various wireless architectures available today. You will also learn the common components of these architectures, in terms of management, security or protocols. You will also learn how to determine key elements of your deployment and configuration, such as channel plan, power or QoS management.
Lesson 1: Contrasting Wireless Architectures
There are all sorts of ways to build a wireless network, depending on the physical environment, the business requirements, the client types, the expected performances, but also the management needs. For these reasons, Cisco distinguishes 5 deployment types that you need to master. This lesson will guide you through these different types, and will also help you understand how these networks are managed and secured.
Lesson 2: Describing Wired Infrastructure Devices and Functions
Your wireless access points need to connect to switches. You may also implement Wireless LAN controllers to control these access points, creating an overlay to the wired infrastructure. You need to understand how the wireless infrastructure interacts with the wired infrastructure. This lesson will help you understand the various elements of the wireless infrastructure, from split MAC, control and data traffic, to Mobility Controller and Mobility Agent, and will also help you understand how switches and routers should be configured to interact with your wireless infrastructure.
Lesson 3: Describing Security Components
Security is key to wireless deployments, and this lesson will detail two security protocols that you need for your wireless networks management: TACACS and RADIUS. You will also learn the basics of Cisco Identity Services (ISE), the tool of choice to manage the secure access of your wireless users and devices.
Lesson 4: Describing Management Components
In small networks, you install access points. In larger networks, you also install Wireless LAN controllers to reduce the management touch points. When your network contains several Wireless LAN controllers, you may also need to centralize their management. This lesson will guide you through the principle of Cisco Prime Infrastructure, the management tool of choice for networks that use Wireless LAN controllers.
Lesson 5: Describing Radio Resource Management
RRM is one of the most central concepts in controller-based architectures, and you are expected to understand it well. In this lesson, you will learn what RRM does and why it is there. You will see how RRM controls AP channels and power, with DCA and TPC, but will also look more closely at the edge of the cell, where cl