200-201 · Question #263
What is the difference between deep packet inspection and stateful inspection?
The correct answer is D. Deep packet inspection allows visibility on Layer 7, and stateful inspection allows visibility on. Deep Packet Inspection (DPI) provides detailed visibility up to Layer 7 of the OSI model, while stateful inspection primarily operates at Layers 3 and 4 to track connection states.
Question
What is the difference between deep packet inspection and stateful inspection?
Options
- AStateful inspection verifies contents at Layer 4, and deep packet inspection verifies connection at
- BStateful inspection is more secure than deep packet inspection on Layer 7.
- CDeep packet inspection is more secure than stateful inspection on Layer 4.
- DDeep packet inspection allows visibility on Layer 7, and stateful inspection allows visibility on
How the community answered
(25 responses)- B8% (2)
- C4% (1)
- D88% (22)
Why each option
Deep Packet Inspection (DPI) provides detailed visibility up to Layer 7 of the OSI model, while stateful inspection primarily operates at Layers 3 and 4 to track connection states.
Stateful inspection primarily tracks connection state at Layers 3 and 4, not just verifies contents at Layer 4, and deep packet inspection goes beyond connection verification to analyze content up to Layer 7.
Deep Packet Inspection (DPI) performs detailed examination of the data portion of a packet, allowing it to analyze application-layer protocols and identify specific content or threats at Layer 7. Stateful inspection, on the other hand, monitors the state of active network connections, primarily operating at Layer 3 (Network) and Layer 4 (Transport), to determine if packets belong to an established session.
Concept tested: Deep Packet Inspection vs. Stateful Inspection
Source: https://www.cisco.com/c/en/us/products/security/firewalls/what-is-dpi.html
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