Isaiec 62443 Cybersecurity Fundamentals Specialist · Free Practice Question Medium
Question 45
What is a potential drawback of deep packet inspection (DPI) firewalls?
- A They are limited to layer 2 traffic.
- B They do not support access control lists.
- C They are slower and process intensive.
- D They cannot analyze application protocols.
Reveal correct answer
Correct answer: C
Explanation
Deep packet inspection (DPI) firewalls analyze the entire packet, including headers and payloads, to detect threats or enforce policies at the application layer. A key drawback is that they are slower and process-intensive due to the computational resources required for detailed analysis. DPI firewalls are not limited to layer 2, support ACLs, and are designed to analyze application protocols, making their performance impact the primary concern.Discussion
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