A firewall is a security system that helps prevent unauthorized access to or from a private network. It checks incoming and outgoing data based on security rules.
Boost signal: Done by repeaters or extenders
Prevent unauthorized access: Main job of a firewall
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Firewalls are used in both software and hardware to protect networks from hackers, viruses, and other online threats. They act as a barrier between your internal network and the outside world.
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