Firewall is a type of_____________.

Correct option is D

A Firewall is a security tool, not a virus, worm, or security threat. It acts as a barrier that monitors and controls incoming and outgoing network traffic based on security rules.
Important Key Points:
1. Network Protection: Firewalls protect networks from unauthorized access and cyber threats.
2. Traffic Filtering: They filter network traffic, allowing or blocking data packets based on predefined rules.
3. Types: Firewalls can be hardware-based or software-based.
Knowledge Booster:
· Virus: A malicious software that replicates itself by modifying other programs.
· Worm: A self-replicating malware that spreads across networks.
· Security Threat: Refers to any potential danger to data or systems, while firewalls help prevent these threats.