3.5 Understand the need Students understand why 0.5 hours This can be taught for, and importance security is important on theoretically or, if the teacher of, network security. networks (more so than has access to this, students standalone computers) could be shown how some of and the listed security these measures are used in Explain the following measures. school, for example firewall methods of network rules used. security: authentication, encryption, firewall, MAC address filtering. 3.5 Describe the 4 layer Students should know 1 hour This topic is a fairly theoretical The specification TCP/IP model. what the four layers are one. Students could use uses the four layer and some functions of textbooks, online notes or TCP/IP model. each layer, together with videos to learn from. There is an Understand that the which of the protocols alternative five HTTP, HTTPS, SMTP, listed operate at which layer model and IMAP and FTP They need to understand why a layer. also a seven layer protocols operate at stack is used (abstraction), what OSI model, neither the application layer. the four layers are and some of which are functions of each layer of the required. stack and at which layers the Understand that the listed protocols work. TCP and UDP protocols operate at the transport
3.5 Understand the need for, and importance of, network security. Explain the following methods of network security: authentication, encryption, firewall, MAC address filtering. Students understand why security is important on networks (more so than standalone computers) and the listed security measures. 0.5 hours This can be taught theoretically or, if the teacher has access to this, students could be shown how some of these measures are used in school, for example firewall rules used. 3.5 Describe the 4 layer TCP/IP model. Understand that the HTTP, HTTPS, SMTP, IMAP and FTP protocols operate at the application layer. Understand that the TCP and UDP protocols operate at the transport Students should know what the four layers are and some functions of each layer, together with which of the protocols listed operate at which layer. 1 hour This topic is a fairly theoretical one. Students could use textbooks, online notes or videos to learn from. They need to understand why a stack is used (abstraction), what the four layers are and some functions of each layer of the stack and at which layers the listed protocols work. The specification uses the four layer TCP/IP model. There is an alternative five layer model and also a seven layer OSI model, neither of which are required.
AQA-8520-SOW.DOCX