ABC.com is planning the storage requirements for an Exchange 2003 server, which supports 750
users in a single Exchange Storage Group (ESG) with five databases. ABC.com has indicated that
the average user mailbox will be 125MB and that the projected growth is expected to be 20%. You
need to calculate the capacity needed for the ESG. What other aspects have to be considered for
you to achieve this?

A.
Size of PST, RAID type and disk speed

B.
Read/write ratio and write penalty

C.
Public folders location and deleted item retention period

D.
Log size, read penalty and RAID type