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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Context Aware Application Firewall
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Application Level Firewall
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Host-based Firewall
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Network Level Firewall
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Detailed explanation-1: -Proxy firewalls, also known as application-level firewalls, filter network traffic at the application layer of the OSI network model.
Detailed explanation-2: -Application layer gateway firewalls also known as proxy based firewalls can monitor and filter on the application layer (Layer 7), as well as doing the traditional filtering such as packet filtering and stateful packet inspection.
Detailed explanation-3: -Basic firewalls provide protection from untrusted traffic while still allowing trusted traffic to pass through. Packet filters, proxy filters, and stateful packet filters are some of the technologies used to accomplish this protection.
Detailed explanation-4: -Explanation: Application level Gateway Firewalls are deployed in the application-layer of OSI model for protecting the network for different protocols of the application layer.
Detailed explanation-5: -Application filtering is the most sophisticated level of filtering performed by the firewall service and is especially useful in protecting the network against specific types of attacks such as malicious SMTP commands or attempts to penetrate the local DNS servers.