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Match the firewall type on the right with the OSI layer at which it operates. Each OSI Layer may be used once, more than once, or not at all.
Drag
- OSI Layer 1
- OSI Layer 2
- OSI Layer 3
- OSI Layer 4
- OSI Layer 5
- OSI Layer 6
- OSI Layer 7
Drop
- Packet filtering firewall
- Circuit-level proxy
- Application-level gateway
- Routed firewall
- Transparent firewall