Ways To check the connection to the server in openSUSE

Dear all member!
I am new to openSUSE, I created an openSUSE VM acting as the server(Server_VM) where I enabled secure shell server and created a user account client_01 that is going to be used to access Server_VM remotely. sshd is installed on this server. Also, I created another openSUSE VM (Client_VM) that is going to be used as the client.

1/ How do I ensure that Client_VM can connect to Server_VM using ping
command? I just ping the the server name (Server_VM) from Client_VM Console but it says unknown host Server_VM
2/ How do I remotely login via SSH using the newly created account client_01?