A user attempts a remote SSH connection to a newly installed ESXi 5.x host to execute some commands. The SSH connection attempts fails, through the user is able to receive a ICMP ping back from the host.
Which two connections might cause the issue? (Choose two)
A.The shell timeout is set to low.
Shell Timeout 預設值為0 (disable)
B.The ParentRootLogin option is set to False.
ParentRootLogin功能設定為ESX平台才有的，ESXi並沒有此功能
C.The SSH service is disabled on the host by default.
預設情況下，SSH是關閉的
D.The Esxi firewall blocks the SSH protocol by default.
預設情況下，防火牆禁止SSH的通訊協定，直到SSH Enable後才會開啟
Source：http://www.aiotestking.com/vmware/2011/10/which-two-connections-might-cause-the-issue/