Introduction to Networking [2026]

Datagram Organization, Multihoming, Path MTU Discovery (PMTUD), Middleboxes: NATs, Karn's algorithm,Round-trip time (RTT
What you'll learn
✓ Introduction to layer
✓ Introduction to Horizontal and vertical layer
✓ Introduction to Encapsulation and decapsulation in Networks
✓ Independent Evolution in Post and networks
✓ Introduction to TCP/IP
✓ Introduction to The Open Systems Interconnection (OSI) Model
✓ Introduction to application layer
✓ Introduction to application layer protocol
✓ What is peer to peer architecture
✓ Introduction to client-server architecture
✓ What are program, process and thread
✓ Introduction to socket
✓ Introduction to Port
✓ Introduction to HTTP/ HTTPS
✓ Introduction to distributed relational databases
✓ Introduction to sessions, cookies and DNS
✓ switches, links and routers
✓ Multiplexing & Demultiplexing in UDP
✓ Introduction to window sliding
✓ Bandwidth allocation principles
✓ Max-min FairnessFurther
✓ What is retransmission time out
✓ Round-trip time (RTT)
✓ Convergence
✓ Checksums
✓ Karn's algorithm
✓ CRC (Cyclic Redundancy Check)
✓ Sequence Numbers
✓ Datagram Organization
✓ Modeling the Network as a Graph
✓ static and dynamic routing
✓ Multihoming
✓ Variable-Length Subnets
✓ Fragmentation
✓ Path MTU Discovery (PMTUD)
✓ Middleboxes: NATs
✓ Ethernet
✓ Ethernet Frames and switches
Requirements
● There is no prerequisites for this course
Description
Introduction to Networking[2026]
Introduction to Networking[2026] is a structured, in-depth foundational course designed to provide learners with a clear, practical, and technically accurate understanding of modern computer networks. The course systematically explains how devices communicate, how data moves across networks, and how today's Internet infrastructure supports applications such as web services, cloud platforms, mobile apps, and distributed systems.
The course begins with core networking concepts, including network types, components, and communication models. Learners are guided through the OSI and TCP/IP models, gaining a precise understanding of the responsibilities of each layer and how layered design enables scalability and interoperability. At the data link and physical layers, the course covers Ethernet technologies, frame structures, switching behavior, and physical media, providing insight into how local area networks function in real environments.
At the network layer, students explore IP addressing in detail, including IPv4, IPv6, subnetting, CIDR, address assignment, and packet forwarding. Routing concepts are introduced through both static and dynamic routing principles, enabling learners to understand how packets traverse multiple networks. The transport layer is examined with a focus on TCP and UDP, congestion control, flow control, multiplexing, and reliability mechanisms.
The course also addresses essential network services and middleware, including DNS, DHCP, NAT, and firewalls, emphasizing their roles as critical building blocks in enterprise and cloud networks. Security fundamentals are introduced through discussions of firewall architectures, middleboxes, and common network threats.
By combining theoretical rigor with practical examples, this course prepares learners to reason about network behavior, diagnose basic connectivity issues, and confidently progress to advanced topics such as cloud networking, cybersecurity, and network engineering. This makes Introduction to Networking[2026] an ideal entry point for academic study and industry-oriented learning alike.
Who this course is for
■ This course is for everyone who wants to learn about networking
■ This course is for everyone who wants to change career to networking engineers
■ This course is for who wants to learn about basic concepts of networking
Homepage

https://www.udemy.com/course/introduction-to-networking-2026/

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