Your Company Leverages Internet-Based VPNs to Provide Connectivity to Remote

Your company leverages Internet-based VPNs to provide connectivity to remote offices. At these sites, the users are connected directly to a layer 2 switch, which is then connected to a VPN concentrator that also provides basic routing functions. How should you analyze the traffic going to and from a remote site?

A) leverage NetFlow data from the outside interface of the VPN concentrator at the remote site
B) leverage NetFlow data from the outside interface of the VPN concentrator at your main site
C) deploy a protocol analyzer to the remote site between the switch and the concentrator
D) deploy a protocol analyzer to the main site between the VPN concentrator and the Internet