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Question: Explain Circuit Level Gateway.

Answer: A circuit level gateway is used to find if a session in TCP handshaking is legitimate or not. It can be considered as a layer between application layer and transport layer. They protect the information of the private network they protect. Circuit level gateways do not filter packets.

A circuit level gateway is used to find if a session in TCP handshaking is legitimate or not. It can be considered as a layer between application layer and transport layer. They protect the information of the private network they protect. Circuit level gateways do not filter packets. Source: CoolInterview.com

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