Computer Networking Online Bundle, 3 Certificate Courses

Learn how to perform computer networking tasks

Computer Networking Online Bundle, 3 Certificate Courses

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Learn How to Perform Computer Networking Tasks

Introduction to Networking

A brief introduction to networking history provides context, explaining how networks became so important to businesses and individuals. The course emphasizes networking fundamentals, explaining the software and hardware that makes networking possible. The course stresses understanding how and why networks work, rather than focusing on memorization of terms or numbers.

Upon completion of the course, you will be capable of performing basic computer networking tasks, such as Internet connectivity, configuring connections to an Internet Service Provider, and creating a private network. This course will give you the foundation you need to begin training for computer certification in a technical field, or employment in a computer networking career.

Intermediate Networking

Learn real-world applications for the concepts you learned in Introduction to Networking. Continue to build your knowledge of networks and networking, with detailed treatments of TCP/IP, how switches and routers operate, DNS, and more. You'll gain a full understanding of almost every aspect of networking technology, including hot topics such as virtual private networks, security, Internet connectivity, and cloud computing. Completion of this course and its prerequisite should serve as a springboard for a career in computer networking or training for CCNA Certification.

Wireless Networking

Wireless networking is one of the fastest growing segments of the computer industry. Every electronic device seems capable of wireless connections these days: computers, handhelds, cell phones , and even digital cameras are all capable of transmitting without a tether. To many people, those wireless connections are nothing short of technical wizardry. This course will remove the mystery and give you a thorough understanding of this fascinating and lucrative technology. 

You'll learn how wireless works, how wireless devices connect to networks, and how to build and connect to your own wireless network. We'll also explore wireless standards, wireless security, satellite Internet and cellular phone technology, as well as the future of wireless.

Becoming knowledgeable about wireless networking is easier than ever. With a helpful instructor who is also a working industry expert, a practical and thoughtful approach to teaching, and an emphasis on giving you a practical, hands-on understanding how wireless works, this course will teach you everything you want to know about the world of wireless connectivity.

Course Fast Facts:

  • Learn Certificate in Computer Networking Suite in only 18 - 24 weeks
  • Approximately only 2 to 4 hours per week of study is required
  • This course is delivered 100% on-line and is accessible 24/7 from any computer or smartphone
  • Instructors lead each course and you will be able to interact with them and ask questions
  • You can study from home or at work at your own pace in your own time
  • You can download printer friendly course material or save for viewing off line
  • You will be awarded a certificate at completion of this course

How to study online course?

Upon enrolment an automated welcome email will be sent to you (please check your junk email inbox if not received as this is an automated email), in order for you to access your online course, which is Available 24/7 on any computer or smart mobile device. New courses start every month to ensure that we have the correct ratio of students to tutors available, please ensure you select a starting date when you go through our shopping cart, at checkout. The course is easy to follow and understand.

Recognition & Accreditation

All students who complete the course receive a certificate of completion with a passing score (for the online assessment) and will be issued a certificate via email.

Course I: Introduction to Networking

There are 12 units of study

History of Networking

Have you ever wondered how networks started? We're surrounded by networks, whether they're computer networks, networks of roads, or the network of telephones that allow us to communicate every day. In our first lesson, you'll learn how networks have evolved over the last hundred years. You'll also find out why every additional device that connects to a network greatly increases the value of the network. By the time you've completed this lesson, you'll have a framework of knowledge that will take you through the rest of the course.

How Networks Operate

In today's lesson, you'll jump right into networks and networking, and learn how they work. We'll use examples from our everyday experience. You'll learn how to tell the difference between a network and networking, and realize that computer networks are a lot like freeway networks. You'll never look at an interstate the same way again! You'll also find out why shipping your data from one computer to the next is a lot like sending your distant uncle a new coffee mug for his birthday. Believe it or not, freeways and shipped gifts have a direct correlation to how networks and networking operate!

Peer-to-Peer versus Client/Server

Have you ever heard someone refer to a computer as a server? Maybe you've heard someone talk about connecting computers in a peer-to-peer environment. Understanding the difference between client/server and peer-to-peer networks really helps you learn about computers and networking. So in today's lesson, you'll learn how to tell the difference between client/server and peer-to-peer networks, and when to use one instead of the other.

Network Types and Topologies

Many people have heard of Ethernet, but what does that mean exactly? In this lesson, you'll learn all about Ethernet, and a whole lot more. Here you'll find out the difference between a star topology and a bus topology, and the advantages of each. Is Ethernet or Token Ring the best modern network technology, and why? In this lesson, you'll get those answers and many more!

Segmentation and Routing

In today's lesson, we'll explore how routers operate, and you'll see why routers operate a lot like how a receptionist in a growing company handles telephone calls. In this lesson, we'll build on information you learned in previous lessons, then you'll find out how a single interconnected network (the Internet) can actually span the entire globe. A global network is an amazing feat, accomplished by interconnecting network segments and routing data! When you've completed this lesson, you'll understand how routing helps our data to cross the city, state, or an entire ocean.

Protocols

When people communicate, they speak a language—such as English—to exchange information. Computers communicate similarly over a network, but instead of speaking a language, they use something called a protocol. Protocols are similar to languages, and in this lesson, you'll learn about the protocols used in networking. You'll also learn which protocol has emerged as the dominant computer protocol, and why!

TCP/IP

In today's lesson, you'll learn how the networking protocol TCP/IP operates. TCP/IP is a collection of protocols, and today you'll learn how TCP/IP divides its tasks. We'll go over how TCP/IP uses addresses to direct data to its rightful owner—it's similar to how we use street addresses.

Name Resolution and Services

Have you ever wondered how your computer converts a World Wide Web address into a Web site that appears on your screen? In this lesson, you'll learn how the Domain Name System (DNS) translates names into numeric addresses, and how all that allows your favorite Web site, e-mail, or file to appear on your computer screen. You'll also learn how the entire computer industry comes to a consensus about how the Internet should work.

Wide Area Networks (WANs)

Today, we'll take a look at Wide Area Networks (WANs) and how they compare to Local Area Networks (LANs). You'll learn all about how data gets sent over long distances, and how the Internet changed expensive, long-distance network connections. You'll also learn how Point-to-Point Tunneling Protocol (PPTP) secures those Internet connections from prying eyes.

Remote Access

If you connect to the Internet, you use remote access. In today's lesson, we'll explore the traditional means of connecting to remote LANs, and talk about exactly how dial-up Internet access works. Then we'll discuss modern means by which many people connect to the Internet, including DSL and cable modems.

Making Internet Connections

In this lesson, you'll apply many of the concepts you've learned so far in this course. We'll walk through the process of making an Internet connection, and you'll see the step-by-step process of creating a dial-up connection. Each step of the way, you'll come to understand what's going on behind the scenes. From there, we'll jump to connecting to the Internet using broadband connections, such as DSL or cable modems.

Review and Conclusion

In our final lesson, we'll tie all the previous lessons together, clarifying how new information about networks and networking can be quickly understood. You'll learn three categories into which networking knowledge can be placed, and see examples to apply your newfound network categories. By the end of this lesson, your understanding of networking will be solid as a rock, and you'll be well-prepared for a lifetime of continued learning about networking!

 

Course II: Intermediate Networking

There are 12 units of study

Get up to Speed

In our first lesson, you'll learn about the concept of a network stack. After a succinct review of essential network and networking terms, we'll compare the theoretical structure of a network stack—commonly called the OSI model—to real-world networking. We'll then trace how data travels through the computer for transmission on the network.

Path of a Packet

We'll pick up right where the last lesson left off today when we begin our discussion on how a unit of computer data—called a packet—gets from one computer to another. You'll learn all about how packets are formed, how packets are sometimes chopped then reassembled to go across WAN links, and how the receiving computer handles packets upon arrival. You'll also learn why the network's most important device is the router.

Routing

Today's lesson is dedicated to helping you understand how routers operate. You'll learn all about how routers create a virtual map of the entire Internet. You'll also see how routers connect to different network types—an Ethernet segment and an ATM link, for example—transmit data across those different mediums. Then we'll discuss why routers have their own special languages, called routing protocols.

Routing Protocols Explained

Today you'll learn the language of routers: routing protocols. You'll learn why some routing protocols are appropriate for smaller networks, and why very large networks require specialized routing protocols. You'll also learn about the two most revealing measurements of a router's capability: latency and packets per second (pps).

TCP/IP in Detail

You've heard of TCP/IP, but its details may seem mysterious. After you complete this lesson, those mysteries will be banished forever! You'll learn about IP addressing, the four primary IP address classes, and all about the various protocols that come packaged within TCP/IP. Prepare to demystify TCP/IP!

Fundamentals of Networking Security

Security is on everyone's mind these days, so in this lesson, you'll learn the fundamentals of how computers enforce security. You'll learn what a security descriptor is and how it can allow some people to only read a document, while others can delete or modify the document as much as they like. You'll also learn the difference between a security implementation and security protocols. Finally, you'll find out how security operates in a Windows environment, including exactly what happens during log on, authentication, and authorization.

Encryption

In today's lesson, we'll explore encryption, a method used to secure data for transmission over the Internet. You'll learn about various encryption schemes, and you'll get firsthand knowledge of how a chunk of data gets encrypted, how it gets decrypted on the receiving end, and how this process can be secure. You'll also learn how Secure Sockets Layer (SSL) makes it safe for you to order merchandise online, and how SSL ensures that your connection to the seller's Web site is secure.

Virtual Private Networks

The Internet is a great public network, but what if you need it for private communication? For example, what if a salesman needs to make a private connection to her company's network to check on special bulk pricing? In today's lesson, you'll learn how you can create a virtual private network out of your Internet connection. You'll get a hands-on view of how these private connections are made, and why they're so useful.

DNS Names, Concepts, and Components

The Internet, and almost every other network today, uses Domain Name System (DNS) to translate names we understand (like www addresses) into IP addresses that computers can use. It's important to understand how this system works, so in this chapter you'll learn details about how DNS operates. You'll learn how resource records are the building blocks of DNS, and how DNS scales to the entire Internet by being broken into zones.

DNS Resource Records and Resolution

We'll expand on our discussion of DNS in this lesson. Here you'll learn about the most important types of resource records, including A records, SOA records, and others. You'll also learn about the two types of DNS queries: recursive and iterative. There are many other resource record types, and you'll learn about those today, too. By the end of this lesson, it'll be clear just how important DNS is to our daily lives!

Internet Servers and Services

In this lesson, you'll learn how Internet Servers operate, including how a Web page is requested and transmitted to your computer, then displayed on your screen. You'll also learn about the two primary Web protocols—HTTP and HTML. There are other Internet-based services, such as e-mail servers, news servers, and instant messaging, and we'll investigate those in this lesson, too.

Understanding Servers

Have you ever wondered about the difference between a desktop computer and a server? Have you heard of cloud computing, but don’t know exactly what it means? In our final lesson, we'll go over the differences between server-class operating systems and server-class computers, and we’ll talk in-depth about the various hardware components that comprise a true server-class computer. Understanding why a desktop computer shouldn't be used as a departmental server is important! You’ll also learn what cloud computing is, why it’s such a compelling platform, and how datacenters provide all that computing power.

 

Course III: Wireless Networking

There are 12 units of study

Networking Basics

The first Internet connection was made at UCLA in September 1969 with a thick gray cable between two computers. Times sure have changed! Today the Internet serves millions of e-mails and Web pages every few minutes, connecting millions of users from all over the world. And today, wireless networking is the hottest networking technology around. People who use wireless networks can check e-mail from their favorite coffee shop, surf the Internet from their couch, and even get instant messages on their Internet-connected cellular phone. Learning how all those wireless networks operate is as interesting as the Internet itself. In this first lesson, you'll learn about basic network facts and operation, preparing you to expand your knowledge in subsequent lessons.

How Wireless Networking Works

Did you ever wonder how your radio turns invisible waves into music? Or have you wondered why you can hear bass sounds from farther away than cymbals? Why does a radio station cut out when you go through a mountain tunnel or around a bend? Wireless networks have similar characteristics to radio music transmissions, but there are important differences. In this lesson, I'll explain how wireless networking actually works in simple everyday terms that make it easy to understand. You'll also learn about different methods used to pull computer data out of thin air.

Standards in the Wireless World

Why do some electronic devices gain widespread popularity while others sit on the shelf? In this lesson, you'll learn how standards in the networking world help drive the adoption of technology. You'll also get a firsthand look at how standards operate in every real-world business, like clothes and batteries and shampoo. In doing so, you'll learn why some wireless networking technologies have flourished while others have failed miserably (early wireless technologies were a flop!). By the end of this lesson, you'll know who makes the standards, how something becomes standardized, and why it's so important. And yes, you'll also see how all this applies to wireless networking standards and gain insight on why wireless networking is so popular today.

Wireless Devices

If you've considered buying wireless networking equipment, you know that there are lots of choices out there. How do you make sense of it all? Which technology is better? What do all of those extra features mean to you? In this lesson, you'll learn all about wireless network devices, what role each device plays, and how to make sense of it all! By the end of this chapter, you'll know exactly what each wireless networking device is capable of doing and which one is right for you.

Wireless Networks—Short Range

In this lesson, we'll investigate short-range wireless network technologies. You'll learn all about Bluetooth (it has nothing to do with dentistry!), Wi-Fi, and the details that make each technology unique. We'll also take a firsthand look at why one is better than the other and where each technology fits into the larger wireless networking picture.

Wireless Networks—Long Range

Would you consider a wireless networking technology capable of traveling 90,000 miles a long-range wireless technology? I certainly would! In this lesson, you'll learn which wireless technology can go beyond your house, beyond your neighborhood, and even beyond the atmosphere. You'll also learn the drawbacks of having your data travel into space and back, and about some long-range wireless technologies that might give DSL or cable Internet access a run for their long-range money.

Creating a Wireless Network—Part 1

Now that you've learned all about wireless technologies, it's time to put your knowledge to work. In this lesson, you'll learn how to plan a wireless network. After all, once you learn about wireless networking, you'll want to get wireless working in your house or office! In this lesson, I'll walk you through each planning phase, complete with network drawings that depict how a real-life wireless network should be prepared.

Creating a Wireless Network—Part 2

In the previous lesson, you planned a network. In this lesson, you'll install a wireless access point (WAP) to get the wireless network up and running. You'll also learn about issues you should address when configuring a wireless network, including interference with neighboring networks and how to extend your network to reach far-off corners of your home or office.

Connecting to a Wireless Network—Part 1

Once you have a wireless network ready for computers to access, you're ready for the next step: connecting wireless devices. In this lesson, you'll learn how to outfit a computer with a wireless network card, how to connect that computer to your wireless network, and how to make sure that wireless network connection is properly configured. By the end of this lesson, you'll be ready to surf the Internet from your couch! Then we'll look at the similarities and differences between Windows and Apple software.

Connecting to a Wireless Network—Part 2

Computers aren't the only devices capable of connecting to wireless networks these days. There are all sorts of wireless devices, like Personal Data Assistants (PDAs), that you can connect. In this lesson, you'll learn how to hook those other devices into the wireless network you created in previous lessons. Then you'll get a chance to explore how Bluetooth networks operate, how they differ from Wi-Fi, and how to go about connecting one Bluetooth device to another.

Security in Wireless Networks

You can't take the security of your computer (or network) for granted these days. In this lesson, you'll discover how wireless networks provide security for wireless devices that connect to them. You'll also learn how to make your own wireless network secure, ensuring that only the people you want to connect to your wireless network are capable of doing so. You'll also learn how to secure your wireless device, such as a computer or PDA, when you're roaming all those cool (but potentially unsafe) public access areas like coffee shops or downtown wireless districts.

Conclusions and the Future

What is the future of wireless networking? Are we there? Is this as cool as it's going to get or are we going to see all sorts of new wireless technologies in the future? In this lesson, I'll give you my thoughts on where the future of wireless networking is headed and what that future might have in store. We'll discuss the future of cellular networks, the future of answering the telephone on the Internet, and how power lines and broadband might be a match made in heaven! Of course, the future is open, but it's fun to make some educated guesses based on history and how networking technology has moved in the past. Be prepared to add you own thoughts to our discussion on the future of networking—this will be an especially interesting and exciting lesson

Entry requirements

Students must have basic literacy and numeracy skills.

Minimum education

Open entry. Previous schooling and academic achievements are not required for entry into this course.

Computer requirements

Students will need access to a computer and the internet. 

Minimum specifications for the computer are:

Windows:

  • Microsoft Windows XP, or later
  • Modern and up to date browser (Internet Explorer 8 or later, Firefox, Chrome, Safari)

MAC/iOS

  • OSX/iOS 6 or later
  • Modern and up to date browser (Firefox, Chrome, Safari)

All systems

  • Internet bandwidth of 1Mb or faster
  • Flash player or a browser with HTML5 video capabilities(Currently Internet Explorer 9, Firefox, Chrome, Safari)

Students will also need access the following applications:

Adobe Acrobat Reader

Adobe PDF plug - in ( a free download obtained at Adobe.com)

Email

Through well-crafted lessons, expert online instruction and interaction with your tutor, participants in these courses gain valuable knowledge at their convenience. They have the flexibility to study at their own pace combined with enough structure and support to complete the course. And they can access the classroom 24/7 from anywhere with an Internet connection.

New sessions of each course run every month. They last six weeks, with two new lessons being released weekly. The courses are entirely Web-based with comprehensive lessons, quizzes, and assignments. A dedicated professional instructor facilitates every course; pacing learners, answering questions, giving feedback, and facilitating discussions.

About this Course

Learn How to Perform Computer Networking Tasks

Introduction to Networking

A brief introduction to networking history provides context, explaining how networks became so important to businesses and individuals. The course emphasizes networking fundamentals, explaining the software and hardware that makes networking possible. The course stresses understanding how and why networks work, rather than focusing on memorization of terms or numbers.

Upon completion of the course, you will be capable of performing basic computer networking tasks, such as Internet connectivity, configuring connections to an Internet Service Provider, and creating a private network. This course will give you the foundation you need to begin training for computer certification in a technical field, or employment in a computer networking career.

Intermediate Networking

Learn real-world applications for the concepts you learned in Introduction to Networking. Continue to build your knowledge of networks and networking, with detailed treatments of TCP/IP, how switches and routers operate, DNS, and more. You'll gain a full understanding of almost every aspect of networking technology, including hot topics such as virtual private networks, security, Internet connectivity, and cloud computing. Completion of this course and its prerequisite should serve as a springboard for a career in computer networking or training for CCNA Certification.

Wireless Networking

Wireless networking is one of the fastest growing segments of the computer industry. Every electronic device seems capable of wireless connections these days: computers, handhelds, cell phones , and even digital cameras are all capable of transmitting without a tether. To many people, those wireless connections are nothing short of technical wizardry. This course will remove the mystery and give you a thorough understanding of this fascinating and lucrative technology. 

You'll learn how wireless works, how wireless devices connect to networks, and how to build and connect to your own wireless network. We'll also explore wireless standards, wireless security, satellite Internet and cellular phone technology, as well as the future of wireless.

Becoming knowledgeable about wireless networking is easier than ever. With a helpful instructor who is also a working industry expert, a practical and thoughtful approach to teaching, and an emphasis on giving you a practical, hands-on understanding how wireless works, this course will teach you everything you want to know about the world of wireless connectivity.

Course Fast Facts:

  • Learn Certificate in Computer Networking Suite in only 18 - 24 weeks
  • Approximately only 2 to 4 hours per week of study is required
  • This course is delivered 100% on-line and is accessible 24/7 from any computer or smartphone
  • Instructors lead each course and you will be able to interact with them and ask questions
  • You can study from home or at work at your own pace in your own time
  • You can download printer friendly course material or save for viewing off line
  • You will be awarded a certificate at completion of this course

How to study online course?

Upon enrolment an automated welcome email will be sent to you (please check your junk email inbox if not received as this is an automated email), in order for you to access your online course, which is Available 24/7 on any computer or smart mobile device. New courses start every month to ensure that we have the correct ratio of students to tutors available, please ensure you select a starting date when you go through our shopping cart, at checkout. The course is easy to follow and understand.

Recognition & Accreditation

All students who complete the course receive a certificate of completion with a passing score (for the online assessment) and will be issued a certificate via email.

Course I: Introduction to Networking

There are 12 units of study

History of Networking

Have you ever wondered how networks started? We're surrounded by networks, whether they're computer networks, networks of roads, or the network of telephones that allow us to communicate every day. In our first lesson, you'll learn how networks have evolved over the last hundred years. You'll also find out why every additional device that connects to a network greatly increases the value of the network. By the time you've completed this lesson, you'll have a framework of knowledge that will take you through the rest of the course.

How Networks Operate

In today's lesson, you'll jump right into networks and networking, and learn how they work. We'll use examples from our everyday experience. You'll learn how to tell the difference between a network and networking, and realize that computer networks are a lot like freeway networks. You'll never look at an interstate the same way again! You'll also find out why shipping your data from one computer to the next is a lot like sending your distant uncle a new coffee mug for his birthday. Believe it or not, freeways and shipped gifts have a direct correlation to how networks and networking operate!

Peer-to-Peer versus Client/Server

Have you ever heard someone refer to a computer as a server? Maybe you've heard someone talk about connecting computers in a peer-to-peer environment. Understanding the difference between client/server and peer-to-peer networks really helps you learn about computers and networking. So in today's lesson, you'll learn how to tell the difference between client/server and peer-to-peer networks, and when to use one instead of the other.

Network Types and Topologies

Many people have heard of Ethernet, but what does that mean exactly? In this lesson, you'll learn all about Ethernet, and a whole lot more. Here you'll find out the difference between a star topology and a bus topology, and the advantages of each. Is Ethernet or Token Ring the best modern network technology, and why? In this lesson, you'll get those answers and many more!

Segmentation and Routing

In today's lesson, we'll explore how routers operate, and you'll see why routers operate a lot like how a receptionist in a growing company handles telephone calls. In this lesson, we'll build on information you learned in previous lessons, then you'll find out how a single interconnected network (the Internet) can actually span the entire globe. A global network is an amazing feat, accomplished by interconnecting network segments and routing data! When you've completed this lesson, you'll understand how routing helps our data to cross the city, state, or an entire ocean.

Protocols

When people communicate, they speak a language—such as English—to exchange information. Computers communicate similarly over a network, but instead of speaking a language, they use something called a protocol. Protocols are similar to languages, and in this lesson, you'll learn about the protocols used in networking. You'll also learn which protocol has emerged as the dominant computer protocol, and why!

TCP/IP

In today's lesson, you'll learn how the networking protocol TCP/IP operates. TCP/IP is a collection of protocols, and today you'll learn how TCP/IP divides its tasks. We'll go over how TCP/IP uses addresses to direct data to its rightful owner—it's similar to how we use street addresses.

Name Resolution and Services

Have you ever wondered how your computer converts a World Wide Web address into a Web site that appears on your screen? In this lesson, you'll learn how the Domain Name System (DNS) translates names into numeric addresses, and how all that allows your favorite Web site, e-mail, or file to appear on your computer screen. You'll also learn how the entire computer industry comes to a consensus about how the Internet should work.

Wide Area Networks (WANs)

Today, we'll take a look at Wide Area Networks (WANs) and how they compare to Local Area Networks (LANs). You'll learn all about how data gets sent over long distances, and how the Internet changed expensive, long-distance network connections. You'll also learn how Point-to-Point Tunneling Protocol (PPTP) secures those Internet connections from prying eyes.

Remote Access

If you connect to the Internet, you use remote access. In today's lesson, we'll explore the traditional means of connecting to remote LANs, and talk about exactly how dial-up Internet access works. Then we'll discuss modern means by which many people connect to the Internet, including DSL and cable modems.

Making Internet Connections

In this lesson, you'll apply many of the concepts you've learned so far in this course. We'll walk through the process of making an Internet connection, and you'll see the step-by-step process of creating a dial-up connection. Each step of the way, you'll come to understand what's going on behind the scenes. From there, we'll jump to connecting to the Internet using broadband connections, such as DSL or cable modems.

Review and Conclusion

In our final lesson, we'll tie all the previous lessons together, clarifying how new information about networks and networking can be quickly understood. You'll learn three categories into which networking knowledge can be placed, and see examples to apply your newfound network categories. By the end of this lesson, your understanding of networking will be solid as a rock, and you'll be well-prepared for a lifetime of continued learning about networking!

 

Course II: Intermediate Networking

There are 12 units of study

Get up to Speed

In our first lesson, you'll learn about the concept of a network stack. After a succinct review of essential network and networking terms, we'll compare the theoretical structure of a network stack—commonly called the OSI model—to real-world networking. We'll then trace how data travels through the computer for transmission on the network.

Path of a Packet

We'll pick up right where the last lesson left off today when we begin our discussion on how a unit of computer data—called a packet—gets from one computer to another. You'll learn all about how packets are formed, how packets are sometimes chopped then reassembled to go across WAN links, and how the receiving computer handles packets upon arrival. You'll also learn why the network's most important device is the router.

Routing

Today's lesson is dedicated to helping you understand how routers operate. You'll learn all about how routers create a virtual map of the entire Internet. You'll also see how routers connect to different network types—an Ethernet segment and an ATM link, for example—transmit data across those different mediums. Then we'll discuss why routers have their own special languages, called routing protocols.

Routing Protocols Explained

Today you'll learn the language of routers: routing protocols. You'll learn why some routing protocols are appropriate for smaller networks, and why very large networks require specialized routing protocols. You'll also learn about the two most revealing measurements of a router's capability: latency and packets per second (pps).

TCP/IP in Detail

You've heard of TCP/IP, but its details may seem mysterious. After you complete this lesson, those mysteries will be banished forever! You'll learn about IP addressing, the four primary IP address classes, and all about the various protocols that come packaged within TCP/IP. Prepare to demystify TCP/IP!

Fundamentals of Networking Security

Security is on everyone's mind these days, so in this lesson, you'll learn the fundamentals of how computers enforce security. You'll learn what a security descriptor is and how it can allow some people to only read a document, while others can delete or modify the document as much as they like. You'll also learn the difference between a security implementation and security protocols. Finally, you'll find out how security operates in a Windows environment, including exactly what happens during log on, authentication, and authorization.

Encryption

In today's lesson, we'll explore encryption, a method used to secure data for transmission over the Internet. You'll learn about various encryption schemes, and you'll get firsthand knowledge of how a chunk of data gets encrypted, how it gets decrypted on the receiving end, and how this process can be secure. You'll also learn how Secure Sockets Layer (SSL) makes it safe for you to order merchandise online, and how SSL ensures that your connection to the seller's Web site is secure.

Virtual Private Networks

The Internet is a great public network, but what if you need it for private communication? For example, what if a salesman needs to make a private connection to her company's network to check on special bulk pricing? In today's lesson, you'll learn how you can create a virtual private network out of your Internet connection. You'll get a hands-on view of how these private connections are made, and why they're so useful.

DNS Names, Concepts, and Components

The Internet, and almost every other network today, uses Domain Name System (DNS) to translate names we understand (like www addresses) into IP addresses that computers can use. It's important to understand how this system works, so in this chapter you'll learn details about how DNS operates. You'll learn how resource records are the building blocks of DNS, and how DNS scales to the entire Internet by being broken into zones.

DNS Resource Records and Resolution

We'll expand on our discussion of DNS in this lesson. Here you'll learn about the most important types of resource records, including A records, SOA records, and others. You'll also learn about the two types of DNS queries: recursive and iterative. There are many other resource record types, and you'll learn about those today, too. By the end of this lesson, it'll be clear just how important DNS is to our daily lives!

Internet Servers and Services

In this lesson, you'll learn how Internet Servers operate, including how a Web page is requested and transmitted to your computer, then displayed on your screen. You'll also learn about the two primary Web protocols—HTTP and HTML. There are other Internet-based services, such as e-mail servers, news servers, and instant messaging, and we'll investigate those in this lesson, too.

Understanding Servers

Have you ever wondered about the difference between a desktop computer and a server? Have you heard of cloud computing, but don’t know exactly what it means? In our final lesson, we'll go over the differences between server-class operating systems and server-class computers, and we’ll talk in-depth about the various hardware components that comprise a true server-class computer. Understanding why a desktop computer shouldn't be used as a departmental server is important! You’ll also learn what cloud computing is, why it’s such a compelling platform, and how datacenters provide all that computing power.

 

Course III: Wireless Networking

There are 12 units of study

Networking Basics

The first Internet connection was made at UCLA in September 1969 with a thick gray cable between two computers. Times sure have changed! Today the Internet serves millions of e-mails and Web pages every few minutes, connecting millions of users from all over the world. And today, wireless networking is the hottest networking technology around. People who use wireless networks can check e-mail from their favorite coffee shop, surf the Internet from their couch, and even get instant messages on their Internet-connected cellular phone. Learning how all those wireless networks operate is as interesting as the Internet itself. In this first lesson, you'll learn about basic network facts and operation, preparing you to expand your knowledge in subsequent lessons.

How Wireless Networking Works

Did you ever wonder how your radio turns invisible waves into music? Or have you wondered why you can hear bass sounds from farther away than cymbals? Why does a radio station cut out when you go through a mountain tunnel or around a bend? Wireless networks have similar characteristics to radio music transmissions, but there are important differences. In this lesson, I'll explain how wireless networking actually works in simple everyday terms that make it easy to understand. You'll also learn about different methods used to pull computer data out of thin air.

Standards in the Wireless World

Why do some electronic devices gain widespread popularity while others sit on the shelf? In this lesson, you'll learn how standards in the networking world help drive the adoption of technology. You'll also get a firsthand look at how standards operate in every real-world business, like clothes and batteries and shampoo. In doing so, you'll learn why some wireless networking technologies have flourished while others have failed miserably (early wireless technologies were a flop!). By the end of this lesson, you'll know who makes the standards, how something becomes standardized, and why it's so important. And yes, you'll also see how all this applies to wireless networking standards and gain insight on why wireless networking is so popular today.

Wireless Devices

If you've considered buying wireless networking equipment, you know that there are lots of choices out there. How do you make sense of it all? Which technology is better? What do all of those extra features mean to you? In this lesson, you'll learn all about wireless network devices, what role each device plays, and how to make sense of it all! By the end of this chapter, you'll know exactly what each wireless networking device is capable of doing and which one is right for you.

Wireless Networks—Short Range

In this lesson, we'll investigate short-range wireless network technologies. You'll learn all about Bluetooth (it has nothing to do with dentistry!), Wi-Fi, and the details that make each technology unique. We'll also take a firsthand look at why one is better than the other and where each technology fits into the larger wireless networking picture.

Wireless Networks—Long Range

Would you consider a wireless networking technology capable of traveling 90,000 miles a long-range wireless technology? I certainly would! In this lesson, you'll learn which wireless technology can go beyond your house, beyond your neighborhood, and even beyond the atmosphere. You'll also learn the drawbacks of having your data travel into space and back, and about some long-range wireless technologies that might give DSL or cable Internet access a run for their long-range money.

Creating a Wireless Network—Part 1

Now that you've learned all about wireless technologies, it's time to put your knowledge to work. In this lesson, you'll learn how to plan a wireless network. After all, once you learn about wireless networking, you'll want to get wireless working in your house or office! In this lesson, I'll walk you through each planning phase, complete with network drawings that depict how a real-life wireless network should be prepared.

Creating a Wireless Network—Part 2

In the previous lesson, you planned a network. In this lesson, you'll install a wireless access point (WAP) to get the wireless network up and running. You'll also learn about issues you should address when configuring a wireless network, including interference with neighboring networks and how to extend your network to reach far-off corners of your home or office.

Connecting to a Wireless Network—Part 1

Once you have a wireless network ready for computers to access, you're ready for the next step: connecting wireless devices. In this lesson, you'll learn how to outfit a computer with a wireless network card, how to connect that computer to your wireless network, and how to make sure that wireless network connection is properly configured. By the end of this lesson, you'll be ready to surf the Internet from your couch! Then we'll look at the similarities and differences between Windows and Apple software.

Connecting to a Wireless Network—Part 2

Computers aren't the only devices capable of connecting to wireless networks these days. There are all sorts of wireless devices, like Personal Data Assistants (PDAs), that you can connect. In this lesson, you'll learn how to hook those other devices into the wireless network you created in previous lessons. Then you'll get a chance to explore how Bluetooth networks operate, how they differ from Wi-Fi, and how to go about connecting one Bluetooth device to another.

Security in Wireless Networks

You can't take the security of your computer (or network) for granted these days. In this lesson, you'll discover how wireless networks provide security for wireless devices that connect to them. You'll also learn how to make your own wireless network secure, ensuring that only the people you want to connect to your wireless network are capable of doing so. You'll also learn how to secure your wireless device, such as a computer or PDA, when you're roaming all those cool (but potentially unsafe) public access areas like coffee shops or downtown wireless districts.

Conclusions and the Future

What is the future of wireless networking? Are we there? Is this as cool as it's going to get or are we going to see all sorts of new wireless technologies in the future? In this lesson, I'll give you my thoughts on where the future of wireless networking is headed and what that future might have in store. We'll discuss the future of cellular networks, the future of answering the telephone on the Internet, and how power lines and broadband might be a match made in heaven! Of course, the future is open, but it's fun to make some educated guesses based on history and how networking technology has moved in the past. Be prepared to add you own thoughts to our discussion on the future of networking—this will be an especially interesting and exciting lesson

Entry requirements

Students must have basic literacy and numeracy skills.

Minimum education

Open entry. Previous schooling and academic achievements are not required for entry into this course.

Computer requirements

Students will need access to a computer and the internet. 

Minimum specifications for the computer are:

Windows:

  • Microsoft Windows XP, or later
  • Modern and up to date browser (Internet Explorer 8 or later, Firefox, Chrome, Safari)

MAC/iOS

  • OSX/iOS 6 or later
  • Modern and up to date browser (Firefox, Chrome, Safari)

All systems

  • Internet bandwidth of 1Mb or faster
  • Flash player or a browser with HTML5 video capabilities(Currently Internet Explorer 9, Firefox, Chrome, Safari)

Students will also need access the following applications:

Adobe Acrobat Reader

Adobe PDF plug - in ( a free download obtained at Adobe.com)

Email

Through well-crafted lessons, expert online instruction and interaction with your tutor, participants in these courses gain valuable knowledge at their convenience. They have the flexibility to study at their own pace combined with enough structure and support to complete the course. And they can access the classroom 24/7 from anywhere with an Internet connection.

New sessions of each course run every month. They last six weeks, with two new lessons being released weekly. The courses are entirely Web-based with comprehensive lessons, quizzes, and assignments. A dedicated professional instructor facilitates every course; pacing learners, answering questions, giving feedback, and facilitating discussions.

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Course Summary

Course ID No.: 007CNS
Delivery Mode: Online
Course Access: 18 - 24 weeks
Tutor Support: Yes
Time required: 72 hours
Assessments: Yes
Qualification: Certificate

Start Dates

This course is available to begin on the following dates

  • 11 September
  • 16 October
  • 13 November
  • 11 December

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