Physical & Data Link Layer Complete Crash Course Part 4 | Framing, Flow Control, Error Control

Finish your Networking Crash Course strong with this 1 hour 37 minute complete tutorial on the Physical and Data Link Layers of the OSI model — the true foundation of data communication. Includes free downloadable notes 📘 This final lecture combines theory + practical examples to help you master Layer 1 and Layer 2 — covering everything from signals and transmission to framing, error control, and MAC addresses. 🧠 What You’ll Learn ⚙️ Physical Layer Essentials Signal transmission concepts & media types Switching methods, ISDN basics, and digital communication principles 🔗 Data Link Layer Overview Two sub-layers: LLC (Logical Link Control) & MAC (Media Access Control) Responsibilities: Framing, Addressing, Synchronization, Error Control, Flow Control, and Multi-Access management 🧩 Framing & Addressing Encapsulation of packets into frames Hardware (Layer-2) addressing and unique MAC identifiers 🌀 Flow Control Mechanisms Stop-and-Wait Protocol – simple acknowledgment-based control Sliding Window Protocol – efficient window-based data exchange ⚡ Error Control Techniques Go-Back-N ARQ & Selective Repeat ARQ Hamming Code, Binary Convolution, Reed-Solomon & LDPC Codes for error detection and correction 🧭 Token Ring Network (IEEE 802.5) Modes of operation – Listen, Talk/Transmit, By-pass Priority & Reservation features and handling breakages 🕹️ MAC Address & Channel Allocation Static vs Dynamic allocation methods Unicast, Multicast, Broadcast MAC addresses and their formats 🧠 Advanced Concepts RMON 1 & 2 MIB Groups for network monitoring Error and flow control integration for reliable data delivery 🎯 Perfect For Computer Science and Engineering students Networking enthusiasts and IT beginners Exam preparation and interview revision 📘 Free Notes Download: Linked in the description for your study support. 👍 Like this video if it helped you 💬 Comment which OSI layer you want next in detail 🔔 Subscribe for more tech learning series on networking and communication Let’s master how data travels — from bits to frames to networks! 🌐✨ Timestamps 00:00:00 - Introduction To Crash Course 00:04:24 - Introduction To Data Link Layer 00:10:17 - Functionality Of Data Link Layer 00:14:41 - Control Flow 00:17:02 - Error Control 00:29:32 - RMON in Computer Networks 00:38:47 - Token Ring Network 00:45:34 - Hamming Code 00:51:43 - Byte Stuffing 00:55:47 - Introduction To Channel Allocation And MAC Address 00:59:09 - Statics Channel Allocation 01:00:55 - Dynamic Channel Allocation 01:02:59 - MAC Address 01:09:13 - Error Control In Data Link Layer 01:14:10 - Flow Control In Data Link Layer 01:18:48 - Farming in Data Link Layer 01:23:17 - Error Detection & Correction 01:35:17 - Conclusion 👉 GET All Crash Course Notes For FREE 100% - https://github.com/sheikhamir1/Data-c... 👉 Watch Complete Playlist Here -    • Computer Networks Zero to Hero (Complete 2...