1 Course Introduction Networking Fundamental Includes material from Cisco Networking Academy CCNA Semester 1

2

3 Course Information Concepts, Terminology, OSI Model, IP Addressing, Subnetting, Ethernet, LANs, Protocols, Packets, Frames, Data Communications “Survey of Telecommunication and Data communications technology fundamentals, Local Area Networks, Wide Area Networks, Internet and internetworking protocols including TCP/IP, network security and performance, emerging industry trends such as voice over the network and high speed networking. Designed as a foundation for students who wish to pursue more advanced telecommunications studies including certificate programs. Includes hands-on networking labs that incorporate Cisco CCNA module 1 as a lab component.” (We use CCNA Semester 1 as a lecture component as well.)

4 Course Information Network Topologies Transmission media Coax, twisted pair, fiber Modulation Analog transmission Digital transmission Line coding Bandwidth, frequency, amplitude NICs, Repeaters, Hubs, Switches ISO and the OSI Model Cabling, UTP Collisions domains Broadcast domains Binary and Hexadecimal numbers Ethernet frames MAC addresses Token Ring, FDDI Layer 2 communications IP Addressing and Subnetting Classful and Classless addressing Routers and Routing Protocols ARP ICMP DHCP and DNS TCP and UDP Some of the fundamental networking topics covered: This will not be the last time you learn about these topics in your networking education and career.

5 Where am I? “What should I already know? I don’t know any of this.” Perfect, you are in the right class, but you should already have basic computer literacy knowledge and skills. Hardware, software, CPU, RAM, ROM, disk drives, interface cards, bits, bytes, software development, WWW, , word processing, windows, file management

6 Herding Cats In some ways, the hardest networking course you will ever take. Not because it is difficult, but because: A lot of new concepts These concepts become more clear in later courses, after you have seen them multiple times. Learning networking is like trying to herd cats. No one great place to start. The material this semester will make much more sense in later semesters. The more you learn about other areas, the more a certain topic makes sense. A lot of, “You will learn more about that later.” A lot of, “Good question, but there is no short answer right now.” Sometimes, “See me after class and I can explain it.”

7 Herding Cats – Posting to TCPmag.com Q&A: "Please help me with these CCIE questions..." Scott, Please help me with the following CCIE questions: 1. Define connectivity and inter-operability. 2. What is the purpose of the interframe gap? 3. What is the purpose of the Ethernet type field? 4. Why are terminators needed on Ethernet segments? 5. The first three bytes of the Ethernet packet destination and source address provide you with what type of management information? 6. How is a jamming signal used? 7. Define the function of a repeater. 8. What is the length and structure of the Version II frame preamble? 9. What is the length and structure of the frame preamble? 10. What does a preamble look like when seen in the hexadecimal data captured in a frame corrupted by a collision? Thanks. -- Ted Ted,

8 Herding Cats – From TCPmag.com Well, I have to say that you have definitely included the most varied questions in one posting that I've seen yet! Now, with that in mind, I'm going to take a different approach with the answer. Each of these questions is vague and can command an answer between one and 15 typed pages at a time. Nobody gives me the space to do that kind of answer! Each concept is both simple and difficult. Some more specific questions are easily answered. I would strongly suggest either taking a general networking course or checking out some good reference books. Examples include: Stevens' TCP/IP Illustrated, Volume 1; Giles' Cisco CCIE: All-In-One Study Guide; and Halabi's Internet Routing Architectures (Second Edition). You can also search various Web sites including and Each will give you many results for these topics. Part of being a networking professional goes far beyond the rote memorization of concepts such as interframe gap, which may be required by different media types to allow for processing of frames while still sending an idle code to maintain clocking between the devices. Or that repeaters do just that -- repeat everything they hear. So, rather than asking question after question like you've done, spend some time reading and researching those topics. If you have more specific questions later, that has demonstrated the attempt at understanding the basic technologies, which admittedly can be very confusing. Then feel free to ask away! We all are part of a community designed to help each other succeed in many ways, but that effort for success begins with a personal drive and effort towards learning. I hope this helps motivate you along that path! And if it doesn't discourage you too much, always remember that the more you know, the more you know you don't know! -- Scott CCIE Scott Morris, independent uber-geek, does Cisco training and technology consulting around the world. He's also a speaker at many industry events. Learn more about him at

9 Cisco Online Assessments and Other Info Cisco Academy Connection: Cisco Online Assessments, Student Community ( First Time Login: Username = Academy Connection ID, Password = Temporary Password Login: Username = username, Password = password (As you entered in the New User Registration screen

10 Student Home

11 Student Class

12 Assessment & Gradebook

13 Cisco Online Curriculum UK Petra CNA Server: Cisco Online Curriculum (