Networks & the Internet

6 interactive Computer Science simulations on networks & the internet.

Network Topologies – Star, Bus, Ring and Mesh Computer Science · Networks & the Internet Build a network of 4–8 computers as a star, bus, ring, full mesh or partial mesh and send packets between them. Cut... Ages 17–18
Domain names, DNS and IP addressing – subnet masks and routing Computer Science · Networks & the Internet Type a domain name and a DNS server looks it up in a table to return the matching IP address. The program then ANDs... Ages 15–16
Network Packets – from Computer A to Computer B through Routers Computer Science · Networks & the Internet The message is split into numbered packets, and each one finds its own way through the routers to the receiving... Ages 11–12
Client–server model: HTTP requests, caching, queues, peer-to-peer and GET vs POST Computer Science · Networks & the Internet Many clients keep sending HTTP requests to one server. A request that hits the cache is answered instantly, while... Ages 17–18
TCP/IP layers – encapsulation, MAC and IP addresses, TCP vs UDP Computer Science · Networks & the Internet Follow data from an application (HTTP, HTTPS, SMTP, POP3, IMAP, FTP, DNS or a video call) as it is wrapped layer by... Ages 17–18
Network hardware and transmission media – build a LAN and connect it to the Internet Computer Science · Networks & the Internet Build a LAN with network interface cards (NICs), a switch, a router, a wireless access point and a modem that... Ages 17–18