Question: 4. a) Explain the packet filtering feature of firewall. (5 points) b) Explain how a packet filtering firewall can be used to block both

4. a) Explain the packet filtering feature of firewall. (5 points) b) Explain how a packet filtering firewall can be used to block both incoming as well as outgoing pings on a network. (5 points) HINT: Ping packets on a network uses ICMP protocol 5. a) What is a DMZ and why do we need it? (5 points) b) How does it work? Explain using a suitable example. (5 points) 6. Briefly explain how an IDS works. Use slide # 80 to explain your answer. (5 points)

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4a Packet filtering is a fundamental feature of a firewall allowing it to control the flow of network traffic based on predefined rules It operates at the network level by inspecting packets of data a... View full answer

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