COMPUTER THREATS SECURITY
WHAT IS A FIREWALL IN NETWORK SECURITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are the same
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Yes. packet filtrering are more advnaces due to the anime force
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Network
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Yes, dispite they work quite the same, circuit-levelwork with more layers
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Detailed explanation-1: -Because a circuit-level gateway filters packets at the session layer of the OSI model, this gateway operates two layers higher than a packet-filtering firewall does.
Detailed explanation-2: -Similar to packet filtering firewalls, circuit-level gateways offer a rough and fast method to filter incoming data packets. In contrast to packet filtering, however, circuit-level gateways aren’t concerned with the incoming packet’s IP address. Rather, their job is to verify the transmission protocol handshake (TCP).
Detailed explanation-3: -While circuit-level gateways provide a higher level of security than packet filtering firewalls, they should be used in conjunction with other systems. For example, circuit-level gateways are typically used alongside application-level gateways.
Detailed explanation-4: -A circuit-level gateway is a firewall that provides User Datagram Protocol (UDP) and Transmission Control Protocol (TCP) connection security, and works between an Open Systems Interconnection (OSI) network model’s transport and application layers such as the session layer.