Which of the following firewalls filters ports and system service calls on a single computer operating system?
- Network address translation firewall
- Transport layer firewall
- Network layer firewall
- Host-based firewall
- Application layer firewall
| Explanation & Hint:
The type of firewall that filters ports and system service calls on a single computer operating system is called a “Host-based firewall.” Host-based firewalls are installed on individual computers or devices and can control traffic and access at the host (computer) level, including filtering specific ports, managing system service calls, and enforcing access policies on that particular device. They provide security measures at the application and transport layers for the host they are installed on. |