CN THEORY

CN Theory (D23)

Welcome to the structured study space for Computer Networks (D23). This academic course dives deep into data communication principles, layered architectures, and protocol design within modern internetworking environments. Building reliable, scalable, and secure communication pathways is crucial for global enterprise infrastructure.

Key Course Learning Objectives:

• Layered Architectures: Analyzing data flow, encapsulation, and protocol operations across the OSI and TCP/IP reference models.
• Routing & IP Subnetting: Implementing dynamic routing algorithms, configuring hierarchical IP addressing, and designing efficient subnet masks.
• Reliable Transport Control: Deconstructing congestion control algorithms, flow control mechanisms, and the state-transitions of TCP and UDP connections.

Download Syllabus

Lecture Unit Resources

UNIT 1: Introduction & PHY

📄 Network Models (Part-A) 📄 Transmission Media (Part-B) 📄 Unit-1 Notes

UNIT 2: Data Link Layer & MAC

📄 Error Detection & Correction 📄 Data Link Protocols (DLC) 📄 Unit-2 Notes

UNIT 3: Network Layer & Routing

📄 Media Access Control and Wired LANs 📄 Unit-3 Notes

UNIT 4: The Network Layer Design Issues and Internet Working

📄 The Network Layer Design Issues 📄 Internet Working 📄 Network layer in the internet 📄 Unit-4 Notes

UNIT 5: Application & Security

📄 DNS, HTTP, & SMTP Services 📄 Cryptography & Net-Security 📊 Application Protocols PPT

IMPORTANT Q&S

📌 MID-1 IMP QUESTIONS 📅 MID-1 IMP BIT QUESTIONS 📚 Ultimate Question Bank 📅 Dec 2025 Exam Paper