Computer Networking Fundamentals and Administration

Computer networks form the backbone of modern technology, making networking knowledge essential for IT roles. This course provides a beginner-friendly foundation in computer networking, explaining how data travels across systems and how to administer basic network environments. You will start by exploring essential terminology, core network architecture models, and standard protocol definitions before moving into network setup and administration workflows. What you'll learn: Understand the OSI and TCP/IP reference models and their practical applications. Master IP addressing, IPv4 subnetting basics, and modern IPv6 concepts. Examine how critical protocols like DNS, DHCP, TCP, UDP, and HTTP function. Apply standard command-line diagnostic tools to analyze and troubleshoot network connectivity issues. Configure local network setups, switches, routers, and essential security controls like firewalls and zero-trust concepts. The course guides you step-by-step from foundational theories to practical administrative practices and modern network security fundamentals. Designed specifically for beginners, no prior networking or IT experience is needed. Read through the lessons today to build your network administration skills.