PCEP-30-02 practice test

1. Question 1 · 1

   Insert the correct snippet so that the program produces the expected output. Expected output: Code:

   Choose one answer.

   

   

   • b = 0 not in list
   • b = list[0]
   • b = 0 in list
   • b = False

2. Question 2 · 1

   What will be the output of the following code snippet?

   Choose one answer.

   

   • 3
   • 2
   • 4
   • 1

3. Question 3 · 1

   What is the output of the following snippet?

   Choose one answer.

   

   • two
   • one
   • (‘one’, ‘two’, ‘three’)
   • three

4. Question 4 · 1

   What is the expected output of the following code?

   Choose one answer.

   

   • [3, 1, 25, 5, 20, 5, 4]
   • [1, 3, 4, 5, 20, 5, 25]
   • [3, 5, 20, 5, 25, 1, 3]
   • [1, 3, 3, 4, 5, 5, 20, 25]
   • [3, 4, 5, 20, 5, 25, 1, 3]

5. Question 5 · 1

   Which of the following sentences is true?

   Choose one answer.

   

   • str1 and str2 are different (but equal) strings.
   • str1 and str2 are different names of the same strings.
   • str1 is longer than str2
   • str2 is longer than str1

6. Question 6 · 1

   The fact that tuples belong to sequence types means:

   Choose one answer.

   • they can be modified using the del instruction
   • they can be extended using the .append() method
   • they are actually lists
   • they can be indexed and sliced like lists

7. Question 7 · 1

   What is the output of the following code?

   Choose one answer.

   

   • [1, 1, 1]
   • [3, -1, 1]
   • [3, 1, 1]

8. Question 8 · 1

   What is the expected output of the following code?

   Choose one answer.

   

   • The code is erroneous.
   • 6
   • 5
   • 4

9. Question 9 · 1

   What is the expected output of the following code?

   Choose one answer.

   

   • ('Peter': 30, 'Paul': 31)
   • ('Peter', 'Paul')
   • ['Peter': 30, 'Paul': 31]
   • ['Peter', 'Paul']

10. Question 10 · 1

    What is the output of the following snippet?

    Choose one answer.

    

    • 2
    • 4
    • The snippet is erroneous (invalid syntax)

11. Question 11 · 1

    What is the expected output of the following code?

    Choose one answer.

    

    • (4)
    • 4
    • (4,)
    • 44

12. Question 12 · 1

    Assuming that the tuple is a correctly created tuple, the fact that tuples are immutable means that the following instruction:

    Choose one answer.

    

    • is illegal
    • may be illegal if the tuple contains strings
    • can be executed if and only if the tuple contains at least two elements
    • is fully correct

13. Question 13 · 1

    What is the output of the following snippet?

    Choose one answer.

    

    • [1, 1, 2, 2]
    • [1, 1, 1, 2]
    • [1, 2, 1, 2]
    • [1, 2, 2, 2]

14. Question 14 · 1

    What is the expected output of the following code?

    Choose one answer.

    

    • 4
    • 6
    • 5
    • 3

15. Question 15 · 1

    A data structure described as LIFO is actually a:

    Choose one answer.

    • stack
    • tree
    • list
    • heap

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