What is the role of “firewalls” in a network?
a) To monitor and control incoming and outgoing traffic
b) To store data securely
c) To encrypt network traffic
d) To connect multiple networks together
Answer:
a) To monitor and control incoming and outgoing traffic
Explanation:
Firewalls are network security devices that monitor and control incoming and outgoing network traffic based on predetermined security rules. They act as a barrier between trusted internal networks and untrusted external networks like the internet.
Firewalls can be hardware-based or software-based and are used to prevent unauthorized access to or from a private network. They filter traffic and block potentially harmful data packets from entering the network.
Firewalls are essential for protecting sensitive information, preventing cyberattacks, and maintaining the security and integrity of a network.