Application-Layer-Protocol
August 30, 2024Computer-Networks
August 30, 2024Computer-Networks
| Question 411 |
Which of the following is NOT a type of firewall for network security?
| Circuit level gateways | |
| Application level gateways | |
| Packet filters | |
| Digital Immune System |
Question 411 Explanation:
A circuit-level gateway is a type of firewall. Circuit-level gateways work at the session layer of the OSI model, or as a “shim-layer” between the application layer and the transport layer of the TCP/IP stack. They monitor TCP handshaking between packets to determine whether a requested session is legitimate.
Application level gateways is also a type of firewall.
Packet filtering is a firewall technique used to control network access by monitoring outgoing and incoming packets and allowing them to pass or halt based on the source and destination Internet Protocol (IP) addresses, protocols and ports.
The Digital Immune system is a comprehensive approach to virus protection, and is not a type of firewall.
Application level gateways is also a type of firewall.
Packet filtering is a firewall technique used to control network access by monitoring outgoing and incoming packets and allowing them to pass or halt based on the source and destination Internet Protocol (IP) addresses, protocols and ports.
The Digital Immune system is a comprehensive approach to virus protection, and is not a type of firewall.
Correct Answer: D
Question 411 Explanation:
A circuit-level gateway is a type of firewall. Circuit-level gateways work at the session layer of the OSI model, or as a “shim-layer” between the application layer and the transport layer of the TCP/IP stack. They monitor TCP handshaking between packets to determine whether a requested session is legitimate.
Application level gateways is also a type of firewall.
Packet filtering is a firewall technique used to control network access by monitoring outgoing and incoming packets and allowing them to pass or halt based on the source and destination Internet Protocol (IP) addresses, protocols and ports.
The Digital Immune system is a comprehensive approach to virus protection, and is not a type of firewall.
Application level gateways is also a type of firewall.
Packet filtering is a firewall technique used to control network access by monitoring outgoing and incoming packets and allowing them to pass or halt based on the source and destination Internet Protocol (IP) addresses, protocols and ports.
The Digital Immune system is a comprehensive approach to virus protection, and is not a type of firewall.