A.usernameadmin
passwordadmin@123

B.usernameadmin
passwordAdmin123

C.usernameadmin
passwordAdmin@123

D.usernameadmin
passwordadmin

A.The interface MTU value greater than 1500 cannot be used as a heartbeat interface

B.MGMT interface (GigabitEthernet 0/0/0) cannot be used as a heartbeat interface

C.It is recommended to configure at least 2 heartbeat interfaces. One heartbeat interface is used as the master, and the other heartbeat interface is used as the backup.

D.The connection method of the heartbeat interface can be direct connection, or connection through a switch or router

A.The encryption algorithm used by user data packets isIKE SADecide

B.IKEis based onUDPapplication layer protocol

C.IKE SAit's forIPSec SAServices

D.IKE SAis bidirectional