Beginner
Cybersecurity & Cryptography
Q9 / 100
What is a firewall?
Correct! Well done.
Incorrect.
The correct answer is B) A network security system monitoring and filtering traffic based on predefined rules to block unauthorized access
B
Correct Answer
A network security system monitoring and filtering traffic based on predefined rules to block unauthorized access
Explanation
Firewalls enforce access control based on IP, port, protocol, and state. Packet filters, stateful inspection, and NGFWs (with DPI, application awareness) provide increasing sophistication.
Progress
9/100