The is used to change the date Auto Fill option. A. Fill Tag
B. Tag
C. Smart Fill
D. Smart Tag

I assume you are talking about Excel?. You first--enter your initial date on the first cell and click the cell with the first date to select it, then drag the fill handle.

I’d say platform as a service (paas) or application platform as a service (apaas) or platform base service is a category of cloud computing services that provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure typically associated with developing and launching an app.