Computer Networks

Master computer networking from fundamentals to advanced production systems with this practical, comprehensive guide.

Computer Networks: From Fundamentals to Advanced Systems takes readers from the foundations of network communication to modern enterprise, cloud, security, and distributed networking architectures. The book focuses not only on definitions, but also on how protocols work, how traffic moves through a network, how systems fail, and how engineers troubleshoot and design reliable networks.

Inside, you will explore:

• Networking fundamentals and communication models

• OSI and TCP/IP architectures

• Physical and Data Link Layer concepts

• Ethernet, switching, VLANs and STP

• IPv4, IPv6, CIDR and subnetting

• ARP, ICMP, DHCP and network configuration

• Routing fundamentals and routing protocols

• TCP, UDP and transport-layer behavior

• DNS, HTTP, HTTPS and TLS

• Wireless and mobile networking

• Network security, VPNs and Zero Trust

• Network troubleshooting and performance engineering

• Cloud, virtual and container networking

• Distributed systems and advanced networking

• Network architecture, reliability and system design

Each unit combines conceptual explanations with real-world scenarios, troubleshooting approaches, hands-on laboratory exercises, interview questions, review questions, and architecture-oriented design exercises.

Whether you are a computer science student, networking learner, software engineer, cloud engineer, DevOps professional, cybersecurity learner, or aspiring network engineer, this book provides a structured path from networking fundamentals to modern production-oriented systems.