I'll give certification exam this week. Please solve me these questions if you know

How does Salesforce enforce data access using role hierarchy?
a. Users are given access to the records owned by the users who are
below them in the role hierarchy
b. Users are given access to the records owned by the users who share
the same role in the role hierarchy
c. Users are given access to the records accessible by the users who are
below them in the role hierarchy
d. Users are given access to the records accessible by the users who are
above the role hierarchy

What will cause the analytic snapshots run to fail?
Please select three (3) choices.
a. The source report has been deleted
b. The target object has a trigger on it
c. The running user has been inactivated
d. The target object is a custom object
e. The source report is saved as matrix report

Thanks 

Souvik

Hi friends,

         I designed one VF email template and tested that it's working great when i tested. after then i created email alert workflow when workflow trigger the menctioned merged fields are not showing the information. Please help me how i get the information when workflow trigger.

The code as shown below.

<messaging:emailTemplate subject="Bureau veritas" recipientType="lead" relatedToType="lead" >
<messaging:htmlEmailBody >

Hello:{!relatedto.Name}

Thank you for downloading our white paper <span id="whitepaperTitle">{!relatedto.Download_White_paper_Name__c}</span>.

</messaging:htmlEmailBody>
</messaging:emailTemplate>

i tried both recipient and relatedto type to refere field when i used relatedto it shows the name of the lead but not other field information. please help me to comeout from this .