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Network Fundamentals

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Internet and The OSI Model

What is the Internet?Layered Architectures & Protocol Stacks The Open Systems Interconnection (OSI) Model The TCP/IP Model

The Application Layer

What Is the Application Layer?Network Application Architectures P2P vs. Client-Server How Processes Communicate HTTP: The Basics HTTP: Request Messages Exercise: Looking at a Real HTTP Request HTTP: Response Messages Exercise: Looking at a Real HTTP Response Cookies Exercise: View and Manage Your Cookies DNS: Introduction Exercise: Finding Name Servers DNS: Records and Messages

The Transport Layer

What Is the Transport Layer?Multiplexing and Demultiplexing Multiplexing & Demultiplexing in UDP Introduction to Congestion Control More on Principles of Congestion Control Principles of Reliable Data Transfer The User Datagram Protocol UDP Checksum Calculation & Why UDP?Exercise: Capturing UDP Packets The Transmission Control Protocol Key Features of the Transmission Control Protocol TCP Segment Header TCP Header Flags TCP Headers: Window Size, Checksum & More TCP Connection Establishment: Three-way Handshake

An Introduction to Socket Programming with Python

The Basics Setting up a UDP Socket Writing a UDP Server Writing a UDP Client Program Running The UDP Server & Client Together Improvements to UDP Programs: Avoiding Arbitrary Servers Project: Write a UDP Chat App!Solution: Write a UDP Chat App!A TCP Client-Server Program

The Network Layer

What Is the Network Layer?Organization of the Network layer The Control Plane: Static & Dynamic Routing The Internet Protocol: Introduction to IPV4 The Internet Protocol: IPV4 Address Allocation The Internet Protocol: IPV4 Packets The Internet Protocol: IPV4 Packet Fragmentation & Reassembly Address Resolution Protocol (ARP)Dynamic Host Configuration Protocol (DHCP)IPv4 in Practice: The Life of a Packet Why IPv6?IPv6 Features Middleboxes: Firewalls Middleboxes: NATs

The Link Layer

What is The Data Link Layer?Principles of The Data Link Layer: The Framing Problem Principles of The Data Link Layer: Error Detection Introduction to Ethernet Ethernet Frame Format Physical Layers for Ethernet Ethernet Switches

Conclusion

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Final Remarks

Final Remarks

Here's a quick summary of what we learned from the "Network Fundamentals" module.

Congratulations! You have successfully completed the “Network Fundamentals" module.

Summary

The ...