6. Identify the differences between an Infoset and a Multiprovider.
a. Both Multiproviders and Infosets can contain all the info providers in BW.
b. Queries built on Multiproviders use 'union' and queries on Infosets use 'join' to retrieve data from different info providers.
c. Both Multiproviders and Infosets do not have data, but data is accessed from the basic info providers used in these objects.
d. None of the above.
ANSWERS: B, C
A Multiprovider can be built on basic InfoCubes, ODSs, info objects or Infosets. An Infoset can have only ODSs or info objects. Multiproviders use 'union' operation but Infosets use 'join'. Both the objects are logical definitions which don't store any data.