You have an Exchange Server 2010 Service Pack 1 (SP1) organization. The organization
contains five servers. The servers are configured as shown in the following table.

All users access their mailbox by using Microsoft Outlook 2010.
You need to identify the 50 largest mailboxes in database 1. The solution must use the
minimum amount of administrative effort.
Which cmdlet should you run?

A.
Test-MapiConnectivity

B.
Test-SmtpConnectivity

C.
Test-OutlookWebServices

D.
Test-ServiceHealth

E.
Get-MailboxStatistics

F.
Test-MailFlow

G.
Get-Message

H.
Get-TransportServer

I.
Get-MailboxDatabase

J.
Get-MailboxFolderStatistics
K.
Test-MRSHealth

Explanation:
http://technet.microsoft.com/en-us/library/bb124612