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

All users access their mailbox using Microsoft Outlook 2010.

You discover that email messages take a long time to be delivered to the Internet. You also discover that there are many email messages waiting in transport queues.

You need to identify how long it takes for an email message to be delivered from Server2 to Server5.

Which cmdlet should you run?

A.
Test-MRSHealth.

B.
Test-SmtpConnectivity.

C.
Get-MailboxDatabase.

D.
Get-Message.

E.
Get-MailboxFolderStatistics.

F.
Get-MailboxStatistics.

G.
Test-MapiConnectivity.

H.
Get-TransportServer.

I.
Test-MailFlow.

J.
Test-OutlookWebServices.
K.
Test-ServiceHealth.

Explanation:
Use the Test-Mailflow cmdlet to diagnose whether mail can be successfully sent from and delivered to the system mailbox on a computer that has the Mailbox server role installed. You can also use this cmdlet to verify that emailis sent between Mailbox servers within a defined latency threshold.

This example tests message flow from the server Mailbox1 to the server Mailbox2:

Test-Mailflow Mailbox1 -TargetMailboxServer Mailbox2

Reference:

http://technet.microsoft.com/en-us/library/aa995894.aspx