which tool should you implement?

DRAG DROP
You are developing an application that will send push notifications to registered devices. You perform the
following actions:
set up a notification hub with the correct push credentials
register the device application with the platform notification system and the hub
update the back-end to send notifications.
You need to debug push notifications by sending test notifications to registered devices in a controlled way.
For each action, which tool should you implement? To answer, drag the appropriate tool to the correct action.
Each tool may be used once, more than once, or not at all. You may need to drag the split bar between panes
or scroll to view content.
Select and Place:

Answer:

Explanation:
https://msdn.microsoft.com/library/dn530751.aspx