A. Flow control
B. Gateway
C. Antivirus
D. Firewall
🧠 Explanation:
A firewall protects a network server from unauthorized access. Knowing this helps students and tech enthusiasts understand cybersecurity. Firewalls are key for studying computer science in school. Learning this helps with projects or exploring network security. It’s useful for tech classes, ensuring clarity in academic work or general knowledge about online safety.
