A firewall is hardware and software that control access to a company's intranet and other internal networks.
The term firewall is known to be that which acts as a form of protection of your network from that holds of attackers.
Note that A firewall is one that functions as the shield of your network as it is known to often acts as a kind of a 24/7 filter that often scan the data that tries to enter your network.
Hence, A firewall is hardware and software that control access to a company's intranet and other internal networks.
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