How should you configure the environment?

HOTSPOT
You plan to deploy Ubuntu Linux virtual machines (VMs) in Azure.
You need to ensure that you are not prompted for a password when you create or connect to the Vms.
How should you configure the environment? To answer, configure the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:

Correct Answer:

Explanation/Reference:
References:
http://askubuntu.com/questions/46930/how-can-i-set-up-password-less-ssh-login