Computer Networks

Explore a comprehensive 16-hour course on computer networks covering essential topics from the OSI model to network security. Dive into the fundamentals of network layers, protocols, and devices. Learn about physical layer concepts, data link layer responsibilities, network layer addressing, and transport layer protocols. Understand routing algorithms, cryptography basics, and firewall implementations. Gain practical knowledge through discussions on socket programming, Linux network commands, and various networking protocols. Master key concepts like IP addressing, subnetting, TCP/UDP, and application layer protocols. Ideal for students preparing for GATE, UGC NET, DSSSB, NIELIT, and university exams, this course provides in-depth explanations and examples to solidify your understanding of computer networks and security.

Lec-0: Computer Networks and Security Full Syllabus for GATE, UGC NET,DSSSB,NIELIT & University exam.
Introduction to Computer Network | OSI MODEL in easiest Way in Hindi | Need of OSI model.
TCP/IP Protocol Suite | Internet Protocol Suite | OSI vs TCP/IP.
Lec1:Physical layer in computer networks in hindi | Functions of Physical layer | OSI.
Lec1.1:Topologies in Computer Networks |Part 1 | All imp points of Mesh,Star,Hub,Bus,Hybrid.
Lec1.2:Topologies in Computer Networks |Part 2 | All imp points of Mesh, Star, Hub, Bus, Hybrid.
Lec1.3: Manchester encoding and differential manchester encoding in hindi | Computer Network.
Lec1.4: Various Devices In Computer Networks | Hardware and Software Devices | Communicating devices.
Lec1.5: Types Of Cables in Computer Networks | Coaxial,twisted pair,fibre optic cable.
Lec1.6: Repeaters in Computer Networks | Physical layer devices.
Lec1.7: Hub in Computer Networks | Physical layer devices.
Lec1.8: Bridges In Computer Networks | Physical and data link layer device.
Lec1.9: Routers in Computer Networks | Physical, data link and network layer device.
Lec 1.10: What is Circuit Switching in Computer Networks in Hindi.
Lec 1.11: Packet Switching In Computer Networks | Imp for GATE and UGC NET.
Lec 1.12: Datagram Switching Vs Virtul Circuit Switching in Packet Switching | Computer Networks.
Lec 1.13: What is Message Switching In Computer Networks.
Lecture2: Data link layer in computer Networks and its Responsibilities.
Lec2.1: Various Flow Control Protocols| Stop&Wait , GoBackN & Selective repeat in Data Link Layer.
Lec2.2: Introduction to Error detection and Correction | Computer Networks.
Lec2.3: Single Bit Parity along With Hamming Distance Concept | Error Control.
Lec2.4: Cyclic Redundancy Check(CRC) for Error Detection and Correction | Computer Networks.
Hamming Code | Error Detection & Correction with Easiest Example.
Lec2.5: Various Medium Access Control Protocols in Data Link Layer | Computer Networks.
Lec2.6: What is Pure Aloha in Hindi | MAC Layer Protocol.
Lec2.7: Pure Aloha Vs Slotted Aloha with all imp points in Hindi | Computer Networks.
Lec2.8: Carrier Sense Multiple Access in Computer Network || CSMA || Computer Networks.
Lec2.9: Carrier Sense Multiple Access/ Collision Detection | CSMA/CD | Computer Networks.
CSMA/CA in Computer Network | Full Explanation.
Lec2.10: Numerical Question on CSMA/CD.
Lec2.11: Ethernet Frame Format (IEEE-802.3) in Data Link Layer.
Lec 3: Network Layer | Responsibilities of Network Layer | OSI Model | Computer Networks.
Lec 3.1:Class A in IP addressing with Example in HINDI | Classful Addressing | Network Layer.
Lec 3.2: Class B in IP addressing with Example | Classful Addressing in hindi with most easiest way.
Lec 3.3: Class C in IP addressing with Example | Classful Addressing | Network Layer.
Lec 3.4: Class D & Class E in IP addressing with Example | Classful Addressing | Network Layer.
Lec 3.5: Find Range, Network Id, Host, Broadcast address with Numerical Examples in Hindi.
Lec 3.6: Disadvantages of Classful Addressing | IP addressing | Computer Networks.
Lec 3.7: What is Classless Addressing (CIDR) in Hindi | CIDR vs Classfull Addressing.
Lec 3.8: Subnetting in Classful Addressing with Examples in Hindi | Computer Networks.
Lec 3.9: Variable Length Subnet Masking(VLSM) in Hindi with Examles | Computer Networks.
Lec 3.10: Subnetting in CIDR Addressing | Classless Interdomain Routing in Hindi with Example.
Lec3.11: Numerical Question on CIDR | Classless Addressing | Very Imp for all Competitive Exams.
Lec 3.12: VLSM in Classless Addressing(CIDR) | Variable Length Subnet Masking.
Lec 3.13: IPv4 Header Format – All Fields Explained in Hindi | Computer Networks.
Lec 3.14: Fragmentation of IPv4 Datagram | Identification, Flags and Fragment Offset | Networks.
Lec 3.15: IPv6 Header Format in Hindi | IPv4 Vs IPv6 in Computer Networks.
Lec 3.16: What is Routing Protocols | Various types of Routing Protocols.
Lec 3.17: Distance vector routing algorithm in hindi | Computer Networks.
Lec-3.18: Count to Infinity Problem in Distance Vector Routing.
Lec-3.19: Link state routing in computer networks in Hindi.
Lec-3.20: ARP Explained- Address Resolution Protocol | Network Layer.
Lec-3.21: NAT Explained - Network Address Translation with example in Hindi.
Lec-4: Transport Layer | Responsibilities of Transport Layer | OSI Model | Computer Networks.
Lec-4-1:TCP: Transmission control protocol | TCP Header | Transport layer | part -1.
Lec 4.2:TCP: Transmission control protocol | TCP Header | Transport layer | part -2.
Lec4.3: TCP connection Establishment and connection Termination | Transport layer.
Lec 4.4:TCP Data Transfer | Piggybacking & Pure Acknowledgement.
Lec4.5: Connection Termination in TCP in Hindi with example.
Lec4.6: TCP Congestion Control in Computer Networks in Hindi.
Lec4.7: UDP (User Datagram Protocol) header in Computer Networks in Hindi.
Lec4.8: Advantages of UDP protocol over TCP | Transport Layer.
Lec4.9: TCP vs UDP differences in hindi.
Lec 5: Session Layer of OSI model | Session layer functions in Hindi.
Lec 6: Presentation layer in computer networks in Hindi | OSI Model.
Lec 7: Application layer of OSI model in Hindi | Application layer protocols & Port no.
Lec7.1: Domain Name System (DNS) in computer Networks.
Lec7.2: Domain Name Server(DNS) & its types in Hindi | All about DNS.
Lec-7.3: HTTP, FTP, SMTP, POP | All Application Layer Protocols | Computer Networks.
Persistent vs Non-Persistent HTTP | HTTP/1.0 vs HTTP/1.1.
Lec-8: Cryptography in computer network in Hindi | Cryptography in Information Security.
Lec-8.1: Symmetric Key Cryptography in Network Security with examples.
Lec-8.2: Imp Question on Network Security | Symmetric Key Cryptography.
Lec-8.3: Asymmetric key Cryptography with example | Network Security.
Lec-8.4: RSA Algorithm in Network Security with examples in Hindi rsa algorithm example in hindi.
Lec-9: What is Firewalls and How it Works | Packet Filtering firewall explained in Hindi Part-1.
Lec-9.1: What is Application(Proxy) Firewall in Hindi | Network Security Part-2.
3 Imp Questions on Computer Networks| Must Watch |.
All Networking Protocols & Devices | Summary from Physical to Application Layer protocols.
Top Linux Network Commands | Computer Networks.
Socket Programming in Computer Networks.
Framing in Data Link Layer | Bit Stuffing vs Byte(Character) Stuffing.