The crow's foot notation shows the minimum number of entities that can be involved in a relationship

What is the meaning of a slack or surplus variable?

What will be an ideal response?

How does Hadoop work?

A) It integrates Big Data into a whole so large data elements can be processed as a whole on one computer. B) It integrates Big Data into a whole so large data elements can be processed as a whole on multiple computers. C) It breaks up Big Data into multiple parts so each part can be processed and analyzed at the same time on one computer. D) It breaks up Big Data into multiple parts so each part can be processed and analyzed at the same time on multiple computers.