Python Institute Python Institute Certifications PCAP-31-03 Questions & Answers

• Question 1:

  The first parameter of each method:

  A. holds a reference to the currently processed object

  B. is always set to None

  C. is set to a unique random value

  D. is set by the first argument's value

  Correct Answer: D

  The first argument of every class method, including init, is always a reference to the current instance of the class. By convention, this argument is always named self. In the init method, self refers to the newly created object; in other class methods, it refers to the instance whose method was called

• Question 2:

  Which of the following statements are true? (Select two answers)

  A. \e is an escape sequence used to mark the end of lines

  B. ASCII is synonymous with UTF-8

  C. II in ASCII stands for Information Interchange

  D. a code point is a number assigned to a given character

  Correct Answer: BD

• Question 3:

  What is the expected behavior of the following code?

  

  A. it outputs [1, 3]

  B. the code is erroneous and it will not execute

  C. it outputs [3, 1]

  D. it outputs [4, 2, 0]

  Correct Answer: A

• Question 4:

  With regards to the directory structure below, select the proper forms of the directives in order to import module_c. (Select two answers) A. from pypack.upper.lower import module_c

  

  B. import pypack.upper.lower.module_c

  C. import upper.module_c

  D. import upper.lower.module_c

  Correct Answer: AB

• Question 5:

  What is the expected out of the following code of the file named zero_length_existing_file is a zero-length file located inside the working directory?

  

  A. 0

  B. -1

  C. an errno value corresponding to file not found

  D. 2

  Correct Answer: A

• Question 6:

  What is the expected output of the following code if existing_file is the name of a file located inside the working directory?

  

  A. 1 2

  B. 1 2 3

  C. 1 3

  D. 2 3

  Correct Answer: C

• Question 7:

  What is the expected behavior of the following code?

  

  A. it outputs 2

  B. the code is erroneous and it will not execute

  C. it outputs 1

  D. it outputs 3

  Correct Answer: A

• Question 8:

  A method for passing the arguments used by the following snippet is called:

  

  A. sequential

  B. named

  C. positional

  D. keyword

  Correct Answer: C

• Question 9:

  A file name like this one below says mat: (select three answers)

  services. cpython-36.pyc

  A. the interpreter used to generate the file is version 3.6

  B. it has been produced by CPython

  C. it is the 36th version of the file

  D. the file comes from the services . py source file

  Correct Answer: ABD

• Question 10:

  What is true about Python packages? (Select two answers)

  A. the__name__variable content determines the way in which the module was run

  B. a package can be stored as a tree of sub-directories/sub-folders

  C. __pycache__is the name of a built-in variable

  D. hashbang is the name of a built-in Python function

  Correct Answer: BC