Deep packet = Application.
With deep packet inspection (DPI), firewalls can look at
specific Layer 7 payloads to protect against security
threats. You can also configure these devices to deny
specific FTP commands, HTTP content types, and other
application protocols.
Ref: Cisco CyberOps Associate CBROPS 200-201 Official Cert Guide
Omar Santos
C is the correct answer.
Deep packet inspection is a form of packet filtering usually carried out as a function of your firewall. It is applied at the Open Systems Interconnection's application layer. Deep packet inspection evaluates the contents of a packet that is going through a checkpoint.
But traditional firewall doesn't understand what application is. So we can only analyze up to transport layer. If we want to see smth more, what is in app layer we sholud use Wireshark or smth else... Answer B is correct in my opinion.
nextgen fw like palo alto understand lay 7 protocol
upvoted 3 times
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