Topic 4 – Networks and network security 49. Pearson Edexcel GCSE (1CP2) Topic 4 Types of networks 50. Pearson Edexcel GCSE (1CP2) Topic 4 How the internet is structured 51. Pearson Edexcel GCSE (1CP2) Topic 4 Wired and wireless networks and performance 52. Pearson Edexcel GCSE (1CP2) Topic 4 Network speeds 53. Pearson Edexcel GCSE (1CP2) Topic 4 Common protocols 54. Pearson Edexcel GCSE (1CP2) Topic 4 TCP-IP protocol model 55. Pearson Edexcel GCSE (1CP2) Topic 4 Network topologies 56. Pearson Edexcel GCSE (1CP2) Topic 4 Importance of network security 57. Pearson Edexcel GCSE (1CP2) Topic 4 Ways of identifying network vulnerabilities 58. Pearson Edexcel GCSE (1CP2) Topic 4 Method of protecting networks