What is the main function of firewall? What are the rules of packet filtering?

Management Of Information Security
6th Edition
ISBN:9781337405713
Author:WHITMAN, Michael.
Publisher:WHITMAN, Michael.
Chapter12: Protection Mechanisms
Section: Chapter Questions
Problem 5RQ
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  1. What is the main function of firewall?
  2. What are the rules of packet filtering?

 

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