What is the purpose of implementing a firewall in a network?

What is the purpose of implementing a firewall in a network?
A . To scan and remove malware from network traffic
B . To prevent unauthorized physical access to network devices
C . To control and filter network traffic based on predetermined security policies
D . To monitor network performance and troubleshoot issues

View Answer

Answer: C

Explanation:

A firewall is a network security device that acts as a barrier between internal and external networks. Its main purpose is to control and filter network traffic based on predetermined security policies. It examines packets entering or leaving the network and either allows or blocks them based on the configured rules.