What are the different types of firewall and their deployment architectures?
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meda Changed status to publish 15/07/2022
There are four types of firewalls, namely static packet filtering, application-level, stateful inspection, and circuit-level firewalls. Each firewall operates at different layers of the OSI Reference model. Both static packet filtering and stateful inspection firewalls work at network the layer (layer 3). Application-level as the name implies works at application layer (layer 7) of the OSI reference model. Whereas circuit-level firewall works at session layer (layer 5).
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the_cyberguy Answered question 08/07/2022