SDE - 1

Tell me about yourself ?
This is the first question which is asked, where he was expecting me to elaborate every thing i have done in my college period be it my projects, my extra curricular activities.

Divide 100rs. into 10 Indian notes without any 10rs. notes?

What is DBMS? 
Difference Between SQL and No-SQL databases, which is better and why?
Explain which database you chose in your projects and why?
Explain different types of keys in SQL like primary key, foreign key.

Ninja is assigned a task to deliver some boxes which contain different units having different weights. With the help of his truck, he will earn money on the basis of the number of units of boxes he will deliver by his truck. Ninja truck has some capacity on the number of boxes he can put on his truck.

So your task is to find a way so that ninja will choose boxes in a way that units will be maximum and he would be able to get more money you will be provided with an array of ‘BOX’

where BOX[i] = [countofBoxes, unitsperBox]:
countofBoxes is the number of boxes of type I.
unitsperBox is the number of units in each box of type I.
And an integer ‘K’ denoting the limit of boxes on the truck.

What is object oriented programing? Explain all major points