551ComputerMedium
What is the function of a firewall in computer networking?
AMonitor website traffic
BProtect against unauthorized access and threats
CIncrease internet speed
DBlock unwanted email
Correct answer
B. Protect against unauthorized access and threats
Explanation
A firewall is a security system designed to prevent unauthorized access into or out of a computer network. Firewalls are often used to make sure internet users without access are not able to interface with private networks, or intranets, connected to the internet.