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Principles of Information Security...

6th Edition
Michael E. Whitman + 1 other
Publisher: Cengage Learning
ISBN: 9781337102063

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BuyFindarrow_forward

Principles of Information Security...

6th Edition
Michael E. Whitman + 1 other
Publisher: Cengage Learning
ISBN: 9781337102063
Chapter 6, Problem 14RQ
Textbook Problem
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How do screened host architectures for firewalls differ from screened subnet firewall architectures? Which offers more security for the information assets that remain on the trusted network?

Program Plan Intro

Firewall architecture:

Entire firewall devices are configured in various network architectures. They might be mutually exclusive, but sometimes may not be. It works best for an organization that depends on following factors:

  • Main purposes of the network
  • Company’s capacity to establish the architectures
  • Cost of the utilities.

The common architectural implements of firewall are:

  • Single bastion hosts
  • Screened host architecture
  • Screened subnet architecture

Explanation of Solution

Difference between screened host architecture and screened subnet architecture:

Screened host architecture Screened subnet architecture
  • It uses both packet filtering and a separate firewall to screen the data packet before arriving into a network.
  • This architecture permits only a single host, the bastion host against possible attack.
  • The bastion host receives all incoming data and makes it as a key against attacks.
  • It uses “Demilitarized Zone” as a port among the device and a host. DMZ offers various securities to interact on the public network...

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Chapter 6 Solutions

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