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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Internet Service Provider
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Packet Filtering
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Transmission Control Protocol
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Internet Protocol
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Detailed explanation-1: -The packet filtering firewall analyses the source and destination IP addresses, source, and destination port numbers, and protocol IDs of IP packets as per an ACL. The firewall checks for the information contained in the IP, TCP, or UDP header, and then it decides to accept or drop the packet depending upon the ACL.
Detailed explanation-2: -It monitors the incoming and outgoing packets in each TCP connection. For example, when a packet originates within the local network, the firewall keeps track of the destination address and allows traffic from the destination addressed to the source back onto the local network.
Detailed explanation-3: -Answer: A firewall cannot prevent a single device from utilizing excessive bandwidth.