Question

What is the primary purpose of a firewall in a computer network?

Q: Answer-What is the primary purpose of a firewall in a computer network?

A firewall inspects incoming and outgoing network traffic and allows or blocks it based on a predefined set of security rules, acting as a barrier between a trusted internal network and untrusted external networks. It does not compress data that function is unrelated, assign IP addresses that is DHCPs role, resolve domain names that is DNSs role, or simply connect network segments that describes devices like switches, bridges, or repeaters.