Udemy – Computer Network: Networking fundamentals for Students

With thousands of businesses and millions of devices using networking for operations, Computing Networking is one of the most essential fields for study for any IT aspirant. The internet revolution has made it virtually the most essential domain knowledge to possess for everyone today.

This course will teach all the fundamentals about Computer Networking; From explaining Computer Networks basics, communication models and detailed lectures on Layers of a networks. This course has illustrative and animated diagrams to help you understand the concepts in an easier way. From solving network related problems to discussing applications of these concepts, we have covered the practical aspects of networking.

Why take this Course?

The 20th Century has all been about information gathering, processing and distribution. In the past few decades, the world has seen tremendous growth in these fields, from telephone networks to radio and television, from highly centralized huge computers to the smart-phones and smart-watches of today. The internet has been instrumental in connecting this world together, to billions of people and millions of devices. And this trend will keep growing rapidly throughout the 21st century too!

How is this course designed?
This Course is structured into following sections:

• Overview: This section introduces you to the course, provides information about the author, course structure and gives you answers to some of the frequently asked questions by students.
• Network basics: This section provides fundamental information on computer networks. Network topologies, different types of networks like LAN, WAN, MAN and wireless networks are explained. One of the most important communication model of computer networks, the OSI Reference Model is discussed. Having the knowledge on OSI Model helps in understanding network functionalities better.
• Physical Layer: This section deals with techniques like Switching and Multiplexing which focus on effectively utilizing the existing bandwidth to accommodate the high rate of data communication.
• Datalink Layer: This section begins with a lecture on framing, a technique to demarcate the frame boundaries. Later we discuss the flow and error control mechanisms, different error detection and correction techniques like Parity Check, Checksum and Hamming Codes.
• Network Layer: In this section header formats of IPv4 and IPv6 datagrams are explained.
• Transport Layer: This section explains the Transport Layer protocols that provide service to the Network Layer. Header format, features and services provided by TCP and UDP are explained.
• Application Layer: This section begins with Cryptography basics. Encryption algorithms like RSA are explained with examples. Also, File Transfer Protocol is explained.

What are the requirements?

• Interest in Computer Networks or Internetworking
• Basic Idea about Computers
• Some mathematical skills to understand and solve network related problems
• You dont need any softwares or tools to learn this course
• You will need a computer with internet to access lectures and resources

What am I going to get from this course?

• Over 20 lectures and 2.5 hours of content!
• You will understand how computer networks are designed, implemented and applied at each layer.
• Structured Content with each section dedicated to unique aspect of Computer Networks
• Clear and Crisp lectures on important concepts about Networks and Networking.
• Dynamic Lecture presentations with example demonstrations wherever necessary to help students learn by visualization
• Lifetime Enrollment : Pay once and access the videos anytime, anywhere on desktop and mobile platforms
• Lifetime Free Upgrades: New Lectures, Resources, Tips and Interview guides added regularly to keep up with current job markets

What is the target audience?

• Computer Science Students who are taking Computer Networks as an academic Course
• IT students who want to learn about Computer Networking
• Job Aspirants who want to pursue a career in Networking
• Network Engineering Students

Curriculum
Section 1: Introduction
Lecture 1 Course Intro and Author Bio Preview 03:07
An Introduction to the "Computer Networks Course: Networking Basics for Students".
This video provides info about the instructor and takes you through the course curriculum.

Section 2: Networks Basics
Lecture 2 Introduction to Computer Networks 05:51
This video introduces you to a computer network, some of the common components that make a computer network and some of the common applications of computer networks.

Lecture 3 Network Topologies 07:33
The term 'Network topology' refers to the way in which a network is laid out physically. This video lecture explains the different types of network topologies namely Ring topology, Bus topology,Star topology and Mesh topology. It also explains the advantages and disadvantages of each network topology.

Lecture 4 LAN, MAN, WAN & Wireless Networks 07:20
This lecture video explain the different types of computer networks viz. Local Area Network, Wide Area Network, Metropolitan Area Network and Wireless Networks.

Lecture 5 OSI Reference Model Preview 06:37
This video explains one of the most important communication model of computer networks, the OSI Reference Model. We discuss the 7 layers of OSI Reference model and also some example protocols of each layer.

Lecture 6 TCP/IP Protocol Suite 09:20
This video explains the TCP/IP Protocol Suite (TCP/IP Model) in detail. We provide an overview of the functionalities of the 4 layers and discuss different protocols present in each of these 4 layers of TCP/IP Protocol Suite.

Section 3: Physical Layer
Lecture 7 Multiplexing 05:00
This video explains what multiplexing is,why do we need multiplexing and the different multiplexing techniques like Frequency Division Multiplexing (FDM) , Time Division Multiplexing (TDM) and Wavelength Division Multiplexing (WDM).

Lecture 8 Switching 06:37
If there are multiple devices in a computer network connecting them using point-to-point links becomes tedious. In such a case central device like switch is used. This video explains what is switching, how a switch works and types of switching namely circuit switching, packet switching and message switching. Also, the pros and cons of each type of switching are discussed.

Section 4: Data Link Layer
Lecture 9 Framing 09:16
This video explains what framing is, the types of framing and different methods of framing like Character count, Character stuffing, Bit stuffing etc. Each method of framing is explained with an example.

Lecture 10 Flow and Error Control 06:10
This video explains why we need flow and error control mechanisms and provides an overview of different techniques that can be used to flow and error control.

Lecture 11 Error Detection and Correction 04:10
This video provides an overview of error detection and correction. It explains what is a transmission error, causes for it and how we can detect and correct the bit errors.

Lecture 12 Error Detection Techniques 09:15
This video explains the error detection techniques like Simple Parity Check, Two Dimensional Parity Check, and Checksum.
Each error detection technique is explained with an example.

Lecture 13 Hamming Codes 08:11
Hamming code technique is used to detect and correct the bit errors in data streams received. Usually, 7-bit Hamming codes are used in practice. In this video, you will learn how to construct (7,4) Hamming Code and detect and correct the bit error. A step-by-step explanation is provided with an example to generate a Hamming Code for a given data string.

Section 5: Network Layer
Lecture 14 IPv4 11:26
This video explains IPv4 datagram header format, the individual fields of IPv4 header and an IPv4 datagram captured.

Lecture 15 IPv6 05:02
This video explains why IPv6 is necessary and how IPv6 is better than IPv4. Also each field in IPv6 datagram header format is explained.

Section 6: Transport Layer
Lecture 16 UDP 08:40
This video explains the User Datagram Protocol (UDP), the features of UDP and the header format of UDP datagram.

Lecture 17 TCP 09:53
This video explains the Transmission Control Protocol (TCP), the services provided by TCP, features of TCP and the header format of TCP packets.

Section 7: Application Layer
Lecture 18 Cryptography Basics Preview 05:51
This video discusses basics of cryptography like what is cryptography and why do we need it. It explains with an example what are the repercussions of communication over the computer networks without the security provided by cryptography.

Lecture 19 RSA Algorithm and Example 06:07
This video explains the RSA Algorithm in detail with an example to show how key generation, encryption and decryption are carried out.

Lecture 20 File Transfer Protocol 06:24
This video explains the basics of File Transfer Protocol, the File Transfer Protocol Architecture, FTP File Formats and Representations and the FTP Client-Server Implementation Model.







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