BEx queries in BPC 10.1 Unified

Hi All,

I am new to BPC 10.1 and have 2 basic questions listed bwlo

1) In BPC 10.1, can we create an input enabled BEx query on top of an :

Aggregation level (y or N)

Realtime Infoprovider(Y or N)

Any other infoproviders?

2) In BPC 10.1, can we create aread only BEx query on top of an :

Aggregation level (y or N)

Realtime Infoprovider(Y or N)

Please help.

Anya