Which two descriptions of the characteristics of Cisco GET VPN are true? (Choose two.)
A. provides a tunelless transport mechanism
B. encrypts the data payload and IP header of a packet
C. requires that GRE tunnels exist between participating routers
D. uses a common set of traffic encryption keys shared by group members
E. uses VTIs to establish Ipsec tunnels
A+D is correct. D means “shared” as in the GM share the same TEK. They use the same Key.
A+B is correct. D is wrong, cause SA is shared by KS, not GM