HPE Aruba Certified Network Security Professional (ACNSP) — Question 51

What is Deep Packet Inspection?

Answer options

• A. a machine learning method of packet inspection for the purpose of choosing which dynamic routing protocol to automatically assign
• B. a concept that applies to firewalls, when examining packets only up through Layer 4
• C. a function of Policy Based Routing that examines the entire IPv4 header to forward traffic based on factors other than destination address
• D. a firewall process of examining the packet header all the way to Layer 7 in order to determine if the packet should be permitted or denied

Correct answer: D

Explanation

The correct answer is D, as Deep Packet Inspection involves analyzing the entire packet, including its payload, up to Layer 7 to make informed decisions on whether to permit or deny it. Options A, B, and C misinterpret the concept, focusing on less comprehensive methods or layers of packet inspection that do not encompass the full depth of Layer 7 analysis.