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Simulazioni Data Science, Prove d'esame di Fondamenti di informatica

Domande di 2 esami di Data Science che ricorrono spesso negli esami del prof Osborne.

Tipologia: Prove d'esame

2024/2025

Caricato il 02/04/2026

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1) What is a neuro-symbolic system?
2) What is the term used when a LLM produces non factual information presented as
true?
3) What of the following options correctly describes the Turing test?
4) What is the long tail issue in LLM?
5) Definition of machine learning
6) Come inserire un commento in Python
7) What is the purpose of the keyword “def” in python?
a. to define a class
b. to define a function
c. to define a variable
d. to define a module
8) What is the purpose of the SUMIF function in Excel?
9) Which of the following options correctly describes the Turing test?
a. An experiment to verify if a machine can imitate human behavior in a conversation.
b. A method for calculating the processing speed of a computer.
c. A test to determine if a computer system can solve complex mathematical problems.
d. A test to evaluate the emotional intelligence of a human being.
10) What is the purpose of “for” in Python?
a. it is used to conditionally execute a block of code depending on the outcome of a boolean
expression.
b. It is used to iterate over a sequence of elements, executing a block of code for each
element in the sequence.
c. it is used to specify the data type of a variable.
d. It is used for defining new functions in the code.
11) What is a large language model?
a. An algorithm designed to automatically translate documents from one language to another
using grammatical rules.
b. A linguistic database containing vocabulary and phrases organized for grammatical
analysis.
c. An artificial intelligence system trained on large amounts of text to generate and
understand natural language in various contexts.
d. A specific program for voice recognition used in personal assistant devices.
12) What is the long tail issue in Large Language Models?
a. The model is slow when generating long responses
b. The model performs poorly on rare or underrepresented topics
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  1. What is a neuro-symbolic system?

  2. What is the term used when a LLM produces non factual information presented as true?

  3. What of the following options correctly describes the Turing test?

  4. What is the long tail issue in LLM?

  5. Definition of machine learning

  6. Come inserire un commento in Python

  7. What is the purpose of the keyword “def” in python? a. to define a class b. to define a function c. to define a variable d. to define a module

  8. What is the purpose of the SUMIF function in Excel?

  9. Which of the following options correctly describes the Turing test? a. An experiment to verify if a machine can imitate human behavior in a conversation. b. A method for calculating the processing speed of a computer. c. A test to determine if a computer system can solve complex mathematical problems. d. A test to evaluate the emotional intelligence of a human being.

  10. What is the purpose of “for” in Python? a. it is used to conditionally execute a block of code depending on the outcome of a boolean expression. b. It is used to iterate over a sequence of elements, executing a block of code for each element in the sequence. c. it is used to specify the data type of a variable. d. It is used for defining new functions in the code.

  11. What is a large language model? a. An algorithm designed to automatically translate documents from one language to another using grammatical rules. b. A linguistic database containing vocabulary and phrases organized for grammatical analysis. c. An artificial intelligence system trained on large amounts of text to generate and understand natural language in various contexts. d. A specific program for voice recognition used in personal assistant devices.

  12. What is the long tail issue in Large Language Models? a. The model is slow when generating long responses b. The model performs poorly on rare or underrepresented topics

c The model overfits to its training data d. The model struggles with very long documents

  1. What does the #DIV/0! error message indicates in Excel? a. There is an incorrect reference in the cell. b. A required value is missing in the formula. c The formula attempts to divide by zero. d. The value in the cell exceeds the display limit of the cell

  2. What is the output of the following code? a= b= I=[] while (a < b) : a = a + 1 I.append(a) print(I)

a. [2,3,4,5,6] b. [1, 2, 3, 4, 5] c. [2,3,4,5] d. The code does not terminate (infinite loop).

  1. Is the formula Excel: = SUM(A1; 10) [in the Italian version =SOMMA(A1; 410)] correctly structured to sum all cells in the range from A1 to A10? a. No, the formula is incorrectly structured. b. Yes, but the $ symbol must be included before the cell references to make it function properly. c. Yes, but the! symbol must be included before the cell references to make it function properly. d. Yes, it correctly sums the range.

  2. What is the output of the following code? I=[23,50,13,100] print(I[3])

a. 50 b. 13 c 100 d [23,50,13]

  1. What is the output of the following code? def filter(dic) : result={} for k, v in dic.items() : if type(v) != str: result[k]=v return result

for i in range (10,15): print(i) a. 11,12,13, b. 11,12,13,14, c. 10,11,12,13,14, d. 10,11,12,13,

  1. Write a Python function that counts the number of even numbers in a given list of integers. The function should take a list as an input and return the number of even numbers within that list. Example: count_evens([2, 3, 4, 5, 6]) # should return 3 (since there are three even numbers: 2, 4, 6) count_evens([23, 24, 25]) # should return 1 (since there is only one even number: 24)

  2. Given the following RDBMS (in compact notation), which represents the data structure of a streaming platform: USERS (UserID, Email, Country, RegistrationDate, Plan) CONTENT (ContentID, Title, Genre, ReleaseYear, ContentType) VIEWS (ViewID, UserID, ContentID, ViewDate, MinutesWatched) Table legend:

  • Bold: primary key
  • Underlined: foreign key
  • Bold and underlined: both primary and foreign key Assume that two values with the same name in two tables (e.g. UserlD) represent the link via primary and foreign key. Write the SQL query that allows selecting the total minutes watched (MinutesWatched) per country (Country), considering only users with a "Premium" plan (Plan) and only views from 2021 (inclusive) onwards (ViewDate, use the YEAR function), limited to content with genre (Genre) "Documentary" or "Sci-fi”. Limit the selection to countries that have a total number of minutes watched equal to or greater than 1,000,000. Order the result by decreasing total minutes watched.