COMPUTER THREATS SECURITY
TYPES OF NETWORK SECURITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Application layer
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Intrusion detection
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Stateful inspection
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Stateless inspection
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Detailed explanation-1: -Circuit-Level Gateway Firewalls A circuit-level firewall is responsible for verifying the TCP handshakes of incoming traffic. It works at the OSI session layer, which falls between the transport and presentation layers (both of which are beneath the application layer).
Detailed explanation-2: -Proxy Firewalls. A proxy firewall (or application-level gateway) serves as an intermediate between internal and external systems. These firewalls protect a network by masking client requests before sending them to the host.
Detailed explanation-3: -Packet filtering A network layer firewall or packet-filtering firewall works at the network layer of the Open Systems Interconnection (OSI) model and can be configured to deny or allow access to specific ports or Internet Protocol (IP) addresses.
Detailed explanation-4: -Explanation: Hardware firewalls are those firewalls that need to be connected as additional hardware between the device through which the internet is coming to the system and the network used for connecting to the internet.