What does a firewall do in network security?

A. अनचाहे traffic को filter करता है / Filters unwanted traffic

Step 1: Identify the network security tool. Step 2: A firewall allows or blocks incoming and outgoing traffic based on rules. Step 3: Remember firewall equals digital security gate.

Step 1: network security tool पहचानें। Step 2: Firewall rules के आधार पर incoming और outgoing traffic को allow या block करता है। Step 3: Firewall equals digital security gate याद रखें।