The primary function of firewall in network security is

1. ATo monitor network traffic and detect anomalies.
2. BTo create virtual private networks for secure communication.
3. CTo filter incoming and outgoing network traffic based on security rules
4. DTo encrypt data before Transmission.

Pick an option to check yourself, or open the answer below.

Show answer & explanation

Correct answer: C. To filter incoming and outgoing network traffic based on security rules

Explanation

A firewall filters incoming and outgoing traffic according to security rules. Detecting anomalies is an IDS's job, VPNs create secure tunnels, and encryption is separate.