📚 Computer Networks (2025–2026 Edition)

📘 Computer Networks (2025–2026 Edition) is a comprehensive syllabus-based textbook designed for BSCS, BSSE, BSIT students, and networking professionals who want to master the principles, architectures, and protocols of modern computer networks. This edition includes MCQs, quizzes, and real-world case studies, providing both academic depth and practical exposure for learners and instructors alike.

The book bridges theoretical foundations with hands-on practice, covering everything from data transmission and switching to network security and emerging technologies such as SDN, IoT, and 5G. Students will learn how data travels through networks, how communication protocols operate at various layers, and how to design, configure, and secure real-world network environments.

📂 Units & Topics

🔹 Unit 1: Introduction to Computer Networks
-Definition and Importance of Networking
-Evolution of Computer Networks
-Types of Networks (LAN, MAN, WAN, WLAN, Internet)
-Network Topologies (Bus, Star, Ring, Mesh, Hybrid)
-Network Hardware Components (Switches, Routers, Hubs, Gateways)

🔹 Unit 2: Data Transmission and Communication Fundamentals
-Analog vs Digital Transmission
-Transmission Impairments and Media Types
-Encoding Techniques (NRZ, Manchester, Differential Manchester)
-Multiplexing: FDM, TDM, WDM

🔹 Unit 3: Transmission Modes and Switching
-Asynchronous and Synchronous Transmission
-Circuit, Packet, and Message Switching
-Switched and IP Networks

🔹 Unit 4: Network Models and Protocol Architectures
-OSI Reference Model (7 Layers)
-TCP/IP Protocol Suite (Layers and Functions)
-Protocol Design Issues and Standards

🔹 Unit 5: Error Detection and Flow Control
-Error Detection (Parity, CRC, Checksums)
-Error Correction (Hamming Codes, FEC)
-Flow Control (Stop-and-Wait, Sliding Window)

🔹 Unit 6: Data Link Layer Protocols
-HDLC, PPP, and MAC Protocols
-Ethernet, Token Ring, and Wireless MAC Protocols

🔹 Unit 7: Local Area Networks (LANs)
-IEEE 802.x Standards
-Ethernet Technologies (Fast, Gigabit)
-VLANs and Wireless LANs (Wi-Fi, IEEE 802.11)

🔹 Unit 8: Network Layer
-IP Addressing (IPv4, IPv6, Subnetting, CIDR)
-Routing Algorithms (Distance Vector, Link State, Path Vector)
-Routing Protocols (RIP, OSPF, BGP, EIGRP)

🔹 Unit 9: Transport Layer
-TCP and UDP Protocols
-Connection Establishment, Flow, and Congestion Control

🔹 Unit 10: Application Layer Protocols
-DNS, HTTP, HTTPS, FTP, SMTP, POP3, IMAP, Telnet, SSH

🔹 Unit 11: Network Security
-Security Threats and Cryptography Basics
-Authentication, Firewalls, VPNs, IDS/IPS
-Secure Protocols (SSL/TLS, IPSec)

🔹 Unit 12: Emerging Trends in Networking
-Software Defined Networking (SDN)
-Cloud Networking and IoT
-5G and Beyond
-Cybersecurity Challenges in Modern Networks

🔹 Unit 13: Practical Component
-Hands-on Labs using Cisco Packet Tracer, GNS3, and Wireshark
-Protocol Implementation Exercises
-Mini Projects and Real-World Network Case Studies

🌟 Why Choose this App/Book?

✅ Complete syllabus-based textbook for computer network theory and practice
✅ Includes MCQs, quizzes, and lab-based learning for academic and professional growth
✅ Covers traditional and modern networking technologies
✅ Perfect for students, educators, and professionals preparing for exams, projects, or certifications

✍ This app is inspired by the authors:
Andrew S. Tanenbaum, William Stallings, James Kurose, Keith Ross, Douglas Comer

📥 Download Now!
Master data communication, routing, protocols, and network security with Computer Networks (2025–2026 Edition) — your complete guide to modern networking systems.