A company is deploying a Microsoft Windows-based， mission-critical Data Warehousing application.  The customer has specified 4GB of RAM.  Which TWO of the following questions will best help the consultant determine the proper memory configuration？（）

A.Does the application require a large paging space？

B.What is the anticipated memory/disk cache hit ratio？

C.Does the application support Physical Address Extensions （PAE）？

D.Are there future plans to expand the amount of memory in the system？

E.Do the application availability requirements justify the use of Memory Mirroring technologies？