PCAP-31-03 practice test

1. Question 1 · 1

   What is true about Python packages? (Choose two.)

   Choose all answers that apply.

   • a code designed to initialize a package’s state should be placed inside a file named init.py
   • a package’s contents can be stored and distributed as an mp3 file
   • __pycache__ is a folder that stores semi-compiled Python modules
   • the sys.path variable is a list of strings

2. Question 2 · 1

   What is true about the following snippet? (Choose two.)

   Choose all answers that apply.

   

   • the string what a pity will be seen
   • the string it's nice to see you will be seen
   • the code will raise an unhandled exception
   • the string I feel fine will be seen

3. Question 3 · 1

   Which of the following statements are true? (Choose two.)

   Choose all answers that apply.

   • II in ASCII stands for Information Interchange
   • a code point is a number assigned to a given character
   • ASCII is synonymous with UTF-8
   • \e is an escape sequence used to mark the end of lines

4. Question 4 · 1

   Assuming that the following inheritance set is in force, which of the following classes are declared properly? (Choose two.)

   Choose all answers that apply.

   

   • class Class_2(B,D): pass
   • class Class_1(C,D): pass
   • class Class_3(A,C): pass
   • class Class_4(D,A): pass

5. Question 5 · 1

   Assuming that the code below has been executed successfully, which of the following expressions evaluate to True? (Choose two.)

   Choose all answers that apply.

   

   • 'var' in Object.__dict__
   • 'var' in Class.__dict__
   • len(Object.__dict__) == 1
   • 'prop' in Class.__dict__

6. Question 6 · 1

   What is the expected behavior of the following code?

   Choose one answer.

   

   • it outputs -2
   • it outputs 2.0
   • it outputs 0.0
   • the code is erroneus and it will not execute

7. Question 7 · 1

   Which of the following expressions evaluate to True? (Choose two.)

   Choose all answers that apply.

   • 'abc'.upper() < 'abc'
   • '1'+'2' * 2 != '12'
   • 3 * 'a' < 'a' * 2
   • 11 == '011'

8. Question 8 · 1

   Assuming that the snippet below has been executed successfully, which of the following expressions will evaluate to True? (Choose two.) string = 'SKY'[::-1] string = string[-1]

   Choose all answers that apply.

   • len(string) == 1
   • string[0] == 'Y'
   • string[0] == string[-1]
   • string is None

9. Question 9 · 1

   What is true about the __bases__ property?

   Choose one answer.

   • there is no such property
   • it is accessible inside a class and an object
   • it is accessible inside a class
   • it is accessible inside an object

10. Question 10 · 1

    Which of the following statements are true? (Choose two.)

    Choose all answers that apply.

    • if invoking open() fails, the value None is returned
    • open() is a function which returns an int that represents a physical file handle
    • the second open() argument is optional
    • instd, outstd, errstd are the names of pre-opened streams

11. Question 11 · 1

    What is the expected behavior of the following code?

    Choose one answer.

    

    • it outputs 2
    • it raises an exception
    • it outputs 1
    • it outputs 0

12. Question 12 · 1

    Which of the following expressions evaluate to True? (Choose two.)

    Choose all answers that apply.

    • ord("0") - ord("9") == 10
    • len("''") == 2
    • chr(ord('z') - 1) == 'y'
    • len(''1234'') == 4

13. Question 13 · 1

    Which of the following expressions evaluate to True? (Choose two.)

    Choose all answers that apply.

    • 'xYz'.lower() > 'XY'
    • '8'+'8' ! = 2 * '8'
    • float ('3.14') == str('3.' + '14')
    • 121 + 1 == int('1' + 2 * '2')

14. Question 14 · 1

    What is the expected behavior of the following code? the_list = "alpha;beta;gamma".split(";") the_string = ''.join(the_list) print(the_string.isalpha())

    Choose one answer.

    • it outputs True
    • it outputs False
    • it outputs nothing
    • it raises an exception

15. Question 15 · 1

    Which of the following invocations are valid? (Choose two.)

    Choose all answers that apply.

    • sort("python")
    • "python".find("")
    • "python".sort()
    • sorted("python")

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