The field that is used to sum the fields that are relevant in the list and show in the main record is known as roll up field.
<u>Explanation</u>
The universal containers are used to contain all types of products information for the purpose of security and management of data.
It is required in the document that, we have to mention the quotes at different places along with their name. So, we use <em>roll up field </em>to manage the quotes of same product name at different lines of the document.
Home page usually refers to the page that initially displays if you type in http://www.example.com/ It's usally named index.html, index.shtml or the like.
