Implementing Cisco SD-WAN Solutions (ENSDWI) — Question 124

At which layer does the application-aware firewall block applications on a WAN Edge?

Answer options

• A. 3
• B. 5
• C. 2
• D. 7

Correct answer: D

Explanation

The correct answer is D, as application-aware firewalls operate at Layer 7 of the OSI model, which is the application layer. The other options (Layers 2, 3, and 5) do not provide the necessary context to manage application-level data and traffic.