Discover the differences between deep packet inspection and stateful inspection in network security. Learn how DPI examines data up to Layer 7 while stateful inspection focuses on Layer 4 and connection state.
Table of Contents
Question
What is the difference between deep packet inspection and stateful inspection?
A. Stateful inspection is more secure due to its complex signatures, and deep packet inspection requires less human intervention.
B. Deep packet inspection is more secure due to its complex signatures, and stateful inspection requires less human intervention.
C. Deep packet inspection gives insights up to Layer 7, and stateful inspection gives insights only up to Layer 4.
D. Stateful inspection verifies data at the transport layer, and deep packet inspection verifies data at the application layer.
Answer
C. Deep packet inspection gives insights up to Layer 7, and stateful inspection gives insights only up to Layer 4.
Explanation
C. Deep packet inspection examines data up to the application layer (Layer 7), providing visibility into the content of packets. It can identify and filter traffic based on application-specific criteria. Stateful inspection, on the other hand, typically operates up to the transport layer (Layer 4), maintaining state information about connections and ensuring packets belong to established sessions.
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