Which of the following answers refers to a software or hardware that monitors network traffic and depending on the configuration settings applied to each data packet either blocks it or allows it to pass through?
Firewall
The answer that refers to the software or hardware that monitors network traffic and applies configuration settings to each data packet to either block or allow it is a firewall.
A firewall is a security system that acts as a barrier between an internal network and the external network (usually the internet).
It examines the data packets that flow in and out of the network and enforces the configured rules or policies to determine whether to permit or deny their passage.
Firewalls can operate at different layers of the network, such as the network layer (packet filtering) or the application layer (application-level gateway or proxy).
They inspect header and payload information of the network packets to make decisions based on specified rules, such as allowing or blocking based on IP addresses, ports, protocols, or even content.
Firewalls are an essential part of network security as they help protect against unauthorized access, network attacks, and data breaches.
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