Which four list the mandatory steps in order to implement SSH v1 access on Cisco IOS XR Software? (Choose four.)
A. install and activate services PIE
B. install and activate security PIE
C. reload system after installing required PIE
D. generate SSH cryptography key
E. configure hostname and domain name
F. configure ssh-server in owner SDR
G. configure AAA services on the router
H. configure TACACS server on the router
