Your question is Securing Networks Against Common Threats. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
How do you secure a network against common vulnerabilities like DDoS attacks or unauthorized access?
Explain a practical, layered approach covering network architecture, identity and access control, preventive controls, monitoring, and incident response. Name specific technologies where appropriate and explain how you verify each control reduces a stated threat.