Microsoft SharePoint Interview

Microsoft SharePoint Interview
how to add content type in page layout.
ex: if you want show some fields( company name and dept name)
Tell me default.aspx page path in sharepoint
if i customize default.aspx.cs where it will store? and how the data will come to site.
which case u will go for event handler and custom field
if i have 3 web front end server how you will deploy you feature what is the options?
what ferature will contains
sharepoint performance issues
page layout in sharepoint
what is page layout what are the diff types of page layouts in sharepoint
how can we find memory leakeage
how can i create 20000 sub sites in sharepoint
if i delete a feature from CA will the custom list related to that feature will be availble or not in the site?
method over load
method override
abstract class
polymorphism
profiles (SQL) in sharepoint
http://www.codeproject.com/KB/dotnet/SQLServerProfiler.aspx

sharepoint site execution
content type
if I create a content type in sub site will it be available in root site
how can we check sharepoint 2010 upgrade check
A) STSADM.EXE -o preupgradecheck