Operation of the signature based intrusion detection system, Computer Network Security

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Question :

(a) State whether the following statement is FALSE or TRUE: It is always better to have various access points to the Internet so that if a hacker takes one down your company still has access.

(b) Mention limitations of a firewall.

(d) How can NAT be used to protect your network?

(e) What is the role of an intrusion detection system? Explain the operation of the signature based intrusion detection system.

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