What is a firewall as used in computers

What is a firewall as used in computers

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A Firewall is a device or software system that filters the data & information exchanged between different networks by enforcing the access control policy of the host network.
A firewall monitors & controls access to or from protected networks. People (remote users) who do not have permission cannot access the network, and those within cannot access sites outside the network restricted by firewalls.

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gideon1 answered the question on September 24, 2017 at 13:38

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