Question

A(n) ______ is a basic security device that filters traffic and is a barrier between a network and the outside world or between a system and other systems.

Answer 1

A Firewall is a basic security device that filters traffic and is a barrier between a network and the outside world or between a system and other systems.

It refers to a network security system that plays a very important role in controlling and monitoring incoming and outgoing network traffic which is based on certain security rules that are pre-determined.

As far as the barrier is concerned, it does establish a wall between a trusted network and an untrusted network, such as the Internet.

Some of the most popular firewalls that ensure optimum security while a user is on network line are PeerBlock, Tinywall, Comodo Free Firewall.

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