The Undo button allows you to reverse up to ____ previous actions, one at a time.

What does the Field Size property do?  What is the default field value for Text fields, and why would you want to change it?  What is the default field value for Number fields, and why would you want to change it?

What will be an ideal response?

The ____ is the most widely used database model today.

A. hierarchical database management system B. relational database management system (RDBMS) C. network database management system D. database management system (DBMS)