A smart-grid electrical utility provider relies on an Industrial Control System (ICS) network to monitor and manage regional power distribution. The provider enforces a strict Network Access Control (NAC) policy to govern how hardware devices and field technician terminals authenticate to the network.
Explain why it is essential for the utility provider to regularly review and update this NAC policy.
Practise Edexcel GCSE Computer Science Network security with exam-style questions for GCSE Computer Science. 27 questions covering Network vulnerabilities and protection methods, matched to the Edexcel GCSE Computer Science (1CP2) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.