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DRAFT y +1/1/60+ y Student ID (Matricola) 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 Computing Infrastructures Course 095897 M. Gribaudo, R.Mirandola 07-07-2017 Last Name / Cognome: ................................................................ First Name / Nome: ................................................................ Answers must be given exclusively on the answer sheet (last sheet): DO NOT FILL ANY BOX IN THIS SHEET Students must use pen (black or blue) to mark answers (no pencil). Students are permitted to use a non-programmable calculator. Students are NOT permitted to copy anyone else’s answers, pass notes amongst themselves, or engage in other forms of misconduct at any time during the exam. Students are NOT permitted to use mobile phones and similar connected devices. Scores for the multiple-choice part: correct answers +1 point, unanswered questions 0 points, wrong answers -0.333 points. You cannot keep a copy of the exam when you leave the room. y For your examination, preferably print documents compiled from auto-multiple-choice. y DRAFT y +1/2/59+ y y For your examination, preferably print documents compiled from auto-multiple-choice. y DRAFT y +1/3/58+ y Big Data - Code - (for all students EXCEPT geomatic students, coming from the BSC in Environment Engineering) - (4 points) The following Apache Spark code processes the data coming from Stack Overflow. 1 import collections 2 3 4 5 Question = collections.namedtuple("Question", """id id_user title text keywords 6 views votes""") 7 Answer = collections.namedtuple("Answer", "id id_question id_user text") 8 User = collections.namedtuple("User", "id reputation profile") 9 10 q1= Question (1,1,"Cassandra Upsert not working on…