COMPUTER THREATS SECURITY
WHAT IS A FIREWALL IN NETWORK SECURITY
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Question
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Filtering based on the user, device, role, and threat profile
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Transport Layer
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Context Aware
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Network Layer
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NAT
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Explanation:
Detailed explanation-1: -Proxy firewalls, also known as application-level firewalls, filter network traffic at the application layer of the OSI network model. As an intermediary between two systems, proxy firewalls monitor traffic at the application layer (protocols at this layer include HTTP and FTP).
Detailed explanation-2: -The packet filtering firewall filters IP packets based on source and destination IP address, and source and destination port.
Detailed explanation-3: -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.
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