SLR 21 – Networks & the Internet AQA A’Level SLR21 Networking topologies AQA A’Level SLR21 Client-server and peer-to-peer AQA A’Level SLR21 Introduction to WiFi AQA A’Level SLR21 CSMA/CS and RTS/CTS AQA A’Level SLR21 Structure of the Internet AQA A’Level SLR21 Packets and packet switching AQA A’Level SLR21 The Internet and how it works AQA A’Level SLR21 How firewalls work AQA A’Level SLR21 Symmetric & asymmetric encryption AQA A’Level SLR21 Digital certificates and signatures AQA A’Level SLR21 Network security threats AQA A’Level SLR21 How to address worms, trojans and viruses
