Look at the Advanced Properties screen exhibit. 
What settings can you change to reduce the encryption overhead and improve performance for your mesh VPN Community?
A.
Check the box “Use aggressive mode”
B.
Change the “Renegotiate IPSec security associations every 3600 seconds” to 7200
C.
Change the setting “Use Diffie-Hellman group:” to “Group 5 (1536 bit)”
D.
Check the box “Use Perfect Forward Secrecy”
Explanation: