You configure a SharePoint Server 2010 Service Pack 1 (SP1) farm. You need to gather data from
existing logs on warning events only. What should you do?

A.
Use the SharePoint Health Analyzer feature.

B.
From Central Administration, go to Configure Diagnostic Logging and set the Least critical event to
report to the event log list to Warning.

C.
Run the following Windows PowerShell cmdlet:
Set-SPLogLevel -EventSeverity Warning
Get-SPLogLevel

D.
Run the following windows PowerShell cmdlet:
Get-SPLogLevel -Identity “Warning Issues”

Explanation:
Ref: http://technet.microsoft.com/en-us/library/ee748656.aspx