What are three required settings to configure server-to-server communication? (Choose three.)

A. SET SERVERHLADDRESS

B. SET LLAADRESS

C. SET SERVERNAME

D. SET CONFIGMANAGER ON
E. SET CROSSSERVER ON

F. SET SERVERPASSWORD

Example: Cross-define two servers
Use cross definition to define SERVER_A and SERVER_B.
On SERVER_B, specify the server name, password, and high- and low-level addresses of SERVER_B. Specify that cross defining is allowed.
set servername server_b
set serverpassword mylife
set serverhladdress 9.115.20.80
set serverlladdress 1860
set crossdefine on

References: https://www.ibm.com/support/knowledgecenter/en/SSEQVQ_8.1.2/srv.reference/r_cmd_server_define.html