A circuit level gateway works at which of the following layers of the OSI Model?
A circuit level gateway works at which of the following layers of the OSI Model?
A circuit-level gateway operates at the transport layer (Layer 4) of the OSI model. It works by monitoring the TCP handshaking between packets to determine whether a requested session is legitimate. Therefore, the correct answer is Layer 4.
Circuit level gateways work at the session layer 5 of the OSI model
Session layer 5
Circuit level gateways work at the session layer 5 of the OSI model
Answer A
layer 5 is not Application
The correct answer is B, a simple google search implies Layer 4 of the OSI model is the transport layer. Please research before posting.
Layer 4 is called TRANSPORT, not TCP. So the question, or actually the correct answer is misleading.
To get this right, research on the difference /similarities between the TCP/IP and OSI models. The Transport layer translates to layer 4 of OSI model
Circuit-level gateways works between the application layer and the transport layer of the OSI model but its main work is to monitor TCP handshaking between packets to determine whether a requested session is legitimate. Hence Layer 4 is the most closet option.
Circuit level gateways work at the session layer 5 of the OSI model
Glad to see I was not the only one who was thrown for a loop by this question. Session layer, layer 5 of the OSI model -- Circuit level gateway.
Layer 4 - TCP, Official courseware page 1629
A circuit-level gateway operates at the transport layer (Layer 4) of the OSI model. It works by monitoring the TCP handshaking between packets to determine whether a requested session is legitimate.
Circuit level gateway firewall works in Sesion Level of OSI models and there si no answer matching to this. From the TPC/IP perspective this is transport layer