Question 45Asked in Bihar STET 2025 Paper II Computer Science, 7 Nov 2025, Shift 1 (9:00 AM)
The primary function of firewall in network security is
ATo monitor network traffic and detect anomalies.
BTo create virtual private networks for secure communication.
CTo filter incoming and outgoing network traffic based on security rules
DTo encrypt data before Transmission.
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Correct answer: (C) To filter incoming and outgoing network traffic based on security rules
Explanation
A firewall filters incoming and outgoing traffic according to configured security rules and blocks unauthorised packets. Monitoring for anomalies is an IDS's job, and encryption or VPNs are separate functions.
From Bihar STET 2025 Paper II Computer Science PYQ, 7 Nov 2025, Shift 1 (9:00 AM)