312-50V11 Question #534: Real Exam Question with Answer & Explanation

The correct answer is B. Network firewalls cannot prevent attacks because ports 80 and 443 must be opened.. Network layer firewalls, also called packet filters, operate at a relatively low level of the TCP/IP protocol stack, not allowing packets to pass through the firewall unless they match the established rule set. To prevent Web Application attacks an Application layer firewall woul

Hacking Web Applications

Question

Which statement is TRUE regarding network firewalls preventing Web Application attacks?

Options

ANetwork firewalls can prevent attacks because they can detect malicious HTTP traffic.
BNetwork firewalls cannot prevent attacks because ports 80 and 443 must be opened.
CNetwork firewalls can prevent attacks if they are properly configured.
DNetwork firewalls cannot prevent attacks because they are too complex to configure.

Explanation

Network layer firewalls, also called packet filters, operate at a relatively low level of the TCP/IP protocol stack, not allowing packets to pass through the firewall unless they match the established rule set. To prevent Web Application attacks an Application layer firewall would be https://en.wikipedia.org/wiki/Firewall_(computing)#Network_layer_or_packet_filters

Topics

#network firewall limitations#web application attacks#ports 80 443#firewall bypass

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