Obtain a foundation in computer networking from networking expert Zanis Khan. This topic is a subset of Zanis Khan's course, The Definitive Preparation Guide to the CCNA (Cisco Certified Network Associate) Certification Exam. Become equipped to explain the network and its key components of switches, routers, firewalls, and servers. Know the architectures and network topologies of Local Area Networks (LANs) and Wide Area Networks (WANs), and the important role of an ISP (Internet Service Provider). Understand the concepts of bits, bytes, kilobytes, megabytes, and terabytes. Learn about the factors (network speed, delay, and availability) that can impact network performance.