Complete the sentence with the correct option. A firewall on a computer __.
A
Reduces overheating of the computer
B
Prevents unauthorized access to the computer
C
Allows more devices to share the same internet connection
D
Enables to utilize maximum Internet bandwidth
Correct Option:
B
Explanation
A firewall examines network traffic and applies security rules to permit or block connections. Its principal role is therefore to reduce unauthorized network access, not to cool the computer or increase Internet bandwidth.
