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EC-Council

212-82 · Question #1

Malachi, a security professional, implemented a firewall in his organization to trace incoming and outgoing traffic. He deployed a firewall that works at the session layer of the OSI model and monitor

The correct answer is B. Circuit-level gateways. A circuit-level gateway is a type of firewall that works at the session layer of the OSI model and monitors the TCP handshake between hosts to determine whether a requested session is legitimate. It does not inspect the contents of each packet, but rather relies on the session in

Submitted by priya_blr· Mar 6, 2026Security Fundamentals

Question

Malachi, a security professional, implemented a firewall in his organization to trace incoming and outgoing traffic. He deployed a firewall that works at the session layer of the OSI model and monitors the TCP handshake between hosts to determine whether a requested session is legitimate. Identify the firewall technology implemented by Malachi in the above scenario.

Options

  • ANext generation firewall (NGFW)
  • BCircuit-level gateways
  • CNetwork address translation (NAT)
  • DPacket filtering

How the community answered

(47 responses)
  • A
    4% (2)
  • B
    94% (44)
  • D
    2% (1)

Explanation

A circuit-level gateway is a type of firewall that works at the session layer of the OSI model and monitors the TCP handshake between hosts to determine whether a requested session is legitimate. It does not inspect the contents of each packet, but rather relies on the session information to filter traffic

Topics

#firewall#OSI model#session layer#circuit-level gateway

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