What is the primary function of a network firewall in a computing environment?
To actively monitor and filter the content users can access while using the corporate network.
To provide a backup storage solution for network data in case of system failure.
To increase the bandwidth available to networked devices by distributing traffic.
To control traffic between a secure internal network and an untrusted external network, according to predefined rules.
To proxy web traffic and filter out malicious payloads