Your router acts as a local network’s traffic manager. It is responsible for sending data coming from the internet to the correct device in your home. Let's break down exactly how that happens. 1. The Request When you search for youtube.com , your device sends a request out to the internet. Because the internet communicates via IP addresses rather than domain names, this request is first resolved…
Understanding IPv4 CIDR Blocks A CIDR block looks like: 10.0.0.0/16 It has two parts: IP address → starting point Prefix (/16) → how many bits are fixed Core Idea (Memorize This First) IPv4 = 32 bits total CIDR /N = N bits are fixed (network) Remaining bits = host bits (free to change) Total addresses = 2^(32 - N) IPv4 Structure An IPv4 address: 10.0.0.0 Breakdown: 10 . 0 . 0 . …
Introduction of Network Topology The structure and placement of components in a computer communication system are known as network topology. The Internet is the most important technology today, and it is dependent on network topology. Bus topology, ring topology, star topology, tree topology, point-to-multipoint topology, point-to-point topology, and worldwide-web topology are some of the topolog…
computer-sciencenetworks
Department of Computer Science, Columbia University
