A ___________ is a program or hardware that filters the information coming through an internet connection to a network or a computer system:

Correct option is C

A firewall is either a software program or a hardware device designed to monitor and filter incoming and outgoing network traffic. It acts as a security guard between a trusted internal network and untrusted external networks.
Important Key Points:
1. Firewall Function - Protects systems by filtering data and preventing unauthorized access.
2. Types of Firewalls - Can be software-based (installed on computers) or hardware-based (used in networks).
Knowledge Booster:
· Malware: A broad category of malicious software that includes viruses, worms, and Trojans, which can damage or disrupt systems.
· Cookies: Small pieces of data stored by websites on a user's computer, typically to remember login details or preferences.
· Adware: A type of software that automatically displays or downloads advertising material to a computer, often without user consent.