Refer to the exhibit.
Which interoperability technique implemented on the router would allow Host-1 to communicate with Host-2?
A.
Dual Stack
B.
NAT-PT
C.
6to4 tunnel
D.
GRE tunnel
E.
ISATAP tunnel
Explanation:
http://www.cisco.com/en/US/prod/collateral/iosswrel/ps8802/ps6969/ps1835/prod_white_paper091
86a008011ff51.html