(Solved): (Question 6) A firewall is a network security system that controls and monitors incoming and outgoin ...

(Question 6) A firewall is a network security system that controls and monitors incoming and outgoing network traffic based on predetermined security rules. There are three main types of firewalls: packet filtering, stateful inspection, and application-layer. Each type has its own strengths and weaknesses, and the choice of firewall depends on the specific security needs of the network. Firewalls are an important component of network security and are used to protect networks from a wide range of security threats, including unauthorized access, malware, viruses, and denial-of-service (DoS) attacks. However, firewalls have limitations, and they cannot protect against all types of security threats. a) Explain the purpose and basic operation of a firewall in a network environment. (10 marks) b) Compare and contrast the three main types of firewalls: packet filtering, stateful inspection, and application-layer. Provide an example scenario where each type would be most effective. (10 marks) c) Discuss one potential limitation of using a firewall for network security and propose a solution or alternative approach to mitigate this limitation. (5marks) 25 marks END OF QUESTION