A ) Add something
B ) Delete something
C ) Security ✅
D ) None of the above
Explanation:
➡️ A security system that monitors and controls incoming and outgoing network traffic.
✅ Firewall refers to a system that protects a computer or network from unauthorized access.
🔒 Explanation for Exams:
A firewall is:
- ✅ A network security system (hardware or software).
- ✅ It blocks unauthorized access to or from a private network.
- ✅ Works by filtering data packets based on security rules.