QuestionQ4Verified/Communication and Network SecurityCopy linkReport a problemAsk AstroTutorSave questionAt which Open Systems Interconnection (OSI) model layer does a circuit-level firewall function?ASession layerBNetwork layerCApplication layerDTransport layerShow AnswerAnswerExplanationA circuit-level firewall works at the session layer, monitoring and validating the establishment of network sessions (such as TCP handshakes) without performing deep inspection of application-layer content.Show comments4Show commentsCommunity DiscussionNo comments yet. Be the first to start the discussion!
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