________ is very useful where you can view and print only the desired and required information from your database

Answer the following statements true (T) or false (F)

1. In SQL the equal operator is ==, the same as Java. 2. SQL does not provide functions for performing calculations. 3. Systems designers commonly use UML diagrams to show the relationships between database tables. 4. No two rows in a table can have the same value in the primary key column.

The _____ is the heart of the operating system and controls its most critical processes.

A. user interface B. register C. kernel D. cache