JNCIP-SEC: Juniper Networks Certified Professional – Security (2021) — Question 6

What is the correct application mapping sequence when a user goes to Facebook for the first time through an SRX Series device?

Answer options

• A. first packet > process packet > check application system cache > classify application > process packet > match and identify application
• B. first packet > check application system cache > process packet > classify application > match and identify application
• C. first packet > check application system cache > classify application > process packet > match and identify application
• D. first packet > process packet > check application system cache > classify application > match and identify application

Correct answer: D

Explanation

The correct answer is D because it accurately outlines the necessary steps for application mapping, starting with processing the first packet, checking the cache, classifying, and then matching the application. The other options either misplace the order of these steps or repeat certain actions, which does not accurately reflect the sequence required for proper application identification.