Sean has configured different VPNs for different routes data will take. This is because data that is traveling within the local network is considered to be at a lower risk of being compromised when compared to when the data travels outside of the local network. What is the term that describes what Sean has set up?

A.
Transport adjacency

B.
Iterated tunneling

C.
Multiple tunneling architecture

D.
Multiple adjacency

Explanation:
IPSec can also be configured to provide iterated tunneling, which is
tunneling an IPSec tunnel through another IPSec tunnel. Iterated tunneling would be
used if the traffic needed different levels of protection at different junctions of
its path. For example, if the IPSec tunnel started from an internal host to an
internal border router, this may not require encryption, so only the AH protocol is
used. But when that data travels from that border router throughout the Internet to
another network, then the data requires more protection. So the first packets travel
through a semi-secure tunnel until they get ready to hit the Internet and then go
through a very secure second tunnel.