Which of the following firewalls filters traffic based on application, program or service?
- Context aware application firewall
- Proxy server
- Application layer firewall
- Host-based firewall
- Network layer firewall
Explanation: An Application layer firewall filters network communications based on the specific application, program, or service attempting to transmit data. While other firewalls might look at IP addresses or data ports, this type focuses on the actual software or service level to determine if traffic should be allowed.
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