What is a Shared WebPart in SharePoint?

A Web Part which was added to a Web Part Page by a user who is working on the page in shared view. Shared Web Parts are available to all users of a Web Part Page who have permissions access it.

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What is a Private WebPart in Sharepoint?

A Web Part which was added to a Web Part Page by a user who is working on the page in personal view. Private Web Parts are available only to the user who added the Web Part.

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What is a Sharepoint List and which are all the list types?

A list is a collection of information items displayed in a site. The following are the List types : Announcements, Links, Contacts, Events, Tasks and Issues.

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How many types of libraries are there in Sharepoint ? What are they?

There three libraries in Sharepoint, they are:
1. Document libraries
2. Form libraries
3. Picture libraries

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