NETWORK SECURITY
FIREWALLS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Any packet coming from 59.45.175.62 will be blocked and a “connection reset” or a “destination host unreachable” packet will be sent.
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Any packet coming from 59.45.175.62 will be blocked without any reply
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Any packet send to 59.45.175.62 will be blocked
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Any packet send to 59.45.175.62 will be blocked with reply
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Detailed explanation-1: -The filter table is one of the most widely used tables in iptables . The filter table is used to make decisions about whether to let a packet continue to its intended destination or to deny its request. In firewall parlance, this is known as “filtering” packets.
Detailed explanation-2: -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.
Detailed explanation-3: -It works by interfacing with the packet filtering hooks in the Linux kernel’s networking stack. It’s these kernel hooks that are collectively referred to as the netfilter framework. Every incoming/outgoing packet in the system will trigger these hooks as it progresses through the stack.
Detailed explanation-4: -The correct answer is For security. A Firewall is a network security device that monitors incoming and outgoing network traffic and permits or blocks data packets based on a set of security rules.