GCIA: GIAC Certified Intrusion AnalystDemo

By GIAC · Question Mode

QuestionQ292

Concepts of TCP/IP and the Link Layer

Which of the following firewall types operates at the Session layer of the OSI model?

  • A Circuit-level firewall
  • B Switch-level firewall
  • C Packet filtering firewall
  • D Application-level firewall
Explanation

A circuit-level firewall operates at the OSI Session layer. It validates and controls communication sessions, such as connection establishment, without performing detailed inspection of application-layer content.

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