Qubole Interview Experience

Here’s my experience of Qubole interview.

Input:
Was csv files of fb users data.

Questions for above Input:
1. Parse the data and build a graph.
2. Check if two users are friends.
3. Check if two users have a friend in common.
4. Find total mutual friends for a pair of users.
5. Find potential friends based on mutual friend count.
6. How will you do this for large datasets ?

OO code was required which had a good design and was well commented.