Pearson Edexcel GCSE (1CP2) SLR 04 Topic 4 – Computer networks, protocols and layers

It includes:

• Student Learning Record Workbook (for use by students)
• Student Learning Record Answers (for use by teachers)
• End of Topic test and answers
• Lesson PowerPoint’s for every lesson
• Any associated answers or references sheets for class activities

This topic covers:

4.1 Networks

• 4.1.1 understand why computers are connected in a network.
• 4.1.2 understand different types of networks (LAN, WAN).
• 4.1.3 understand how the internet is structured (IP addressing, routers).
• 4.1.4 understand how the characteristics of wired and wireless connectivity impact on performance (speed, range, latency, bandwidth).
• 4.1.5 understand that network speeds are measured in bits per second (kilobit, megabit, gigabit) and be able to construct expressions involving file size, transmission rate and time.
• 4.1.6 understand the role of and need for network protocols (Ethernet, Wi-Fi, TCP/IP, HTTP, HTTPS, FTP) and email protocols (POP3, SMTP, IMAP).
• 4.1.7 understand how the 4-layer (application, transport, internet, link) TCP/IP model handles data transmission over a network.
• 4.1.8 understand characteristics of network topologies (bus, star, mesh)