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Chapter 6 · SecurityPractice
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CONCEPT PRACTICE

Packet filtering by addresses and ports

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2023 Spring · Morning · Q44

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Q44. A packet filtering firewall is installed at the connection point of an internal network and the Internet. Which of the following is the appropriate combination of filtering rules that enables PCs on the internal network to access a web server on the Internet (port number 80)? Source visual transcription: Every choice has two rows for outgoing and incoming packets and columns Source,Destination,Source port number,Destination port number;all row values are separately transcribed in optionText.

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Source: 2023S_FE_AM_Questions.pdf, PDF page 16. ID: 2023S-AM-Q044. Explanation written for this textbook.

Original question · Q44
Q44. A packet filtering firewall is installed at the connection point of an internal network and the Internet. Which of the following is the appropriate combination of filtering rules that enables PCs on the internal network to access a web server on the Internet (port number 80)? Source visual transcription: Every choice has two rows for outgoing and incoming packets and columns Source,Destination,Source port number,Destination port number;all row values are separately transcribed in optionText.

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