Question

what is firewall? (in long)​

Answer 1

Answer:

Explanation:

In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.[1] A firewall typically establishes a barrier between a trusted internal network and untrusted external network, such as the Internet.[2]

Firewalls are often categorized as either network firewalls or host-based firewalls. Network firewalls filter traffic between two or more networks and run on network hardware. Host-based firewalls run on host computers and control network traffic in and out of those machines.

Answer 2

Answer:

what is Network security firewall:

Firewall is something in the internet, which protects our computer from the network which consists of many untrusted bad guys. It checks the IP adress, protocol and many other things and chooses a network as trusted or unsafe. If unsafe the computer does not permit any download or does not reccomend us to use that website.

How to open windows firewall in windows 7 :

Step 1: Go to the start button and search there for all control panel items.

Step 2: Now go to windows firewall and you will see the status of your windows firewall. you can switch it off if you want.

It shows whether you are connected to any public network also