BONUS

(2 points)

(you may want to draw this by hand and then scan the paper)

Given the following data on Employees and Projects:

E_Number	Name	Department	Age
001	Harry, T	MIS	30
002	Sally, P	MIS	20

E_NUMBER	Project_ID	Hours_worked
1	1000	30
1	1200	25
2	1200	20
2	1300	35

Query: want to know thetotal hours worked by an employee.

Show would you implement this in MapReduce process