Which firewall checks incoming requests for vulnerabilities but does not actively reject potential attacks?

Which firewall checks incoming requests for vulnerabilities but does not actively reject potential attacks?

• A. Passive Application-Level Firewalls
• B. Active Application-Level Firewalls
• C. NAT
• D. Honeytrap

Answer: (A)

The idea being tested is the difference between passive and active behavior in an application-level firewall. A passive application-level firewall inspects incoming traffic to look for potential vulnerabilities and security issues, but it does not actively block or reject the traffic. It may log findings, alert administrators, or provide analysis for later action. This fits the description of “checks for vulnerabilities but does not actively reject.” An active application-level firewall, by contrast, would not only inspect but also block, modify, or challenge suspicious requests in real time, which is why it wouldn’t be the right fit here. NAT operates at the network layer to translate addresses and does not assess traffic for vulnerabilities. A honeytrap (honeypot) is a decoy to attract attackers, not a firewall filtering traffic. So the best answer is the passive application-level firewall.

The idea being tested is the difference between passive and active behavior in an application-level firewall. A passive application-level firewall inspects incoming traffic to look for potential vulnerabilities and security issues, but it does not actively block or reject the traffic. It may log findings, alert administrators, or provide analysis for later action. This fits the description of “checks for vulnerabilities but does not actively reject.”

An active application-level firewall, by contrast, would not only inspect but also block, modify, or challenge suspicious requests in real time, which is why it wouldn’t be the right fit here. NAT operates at the network layer to translate addresses and does not assess traffic for vulnerabilities. A honeytrap (honeypot) is a decoy to attract attackers, not a firewall filtering traffic.

So the best answer is the passive application-level firewall.