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

• Question 51:

  What is a true about python class constructors? (Select two answers)

  A. the constructor must have at least one parameter

  B. the constructor must return a value other than None

  C. the constructor is a method named_init_

  D. there can the more than one constructor in a Python class.

  Correct Answer: AC

• Question 52:

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

  A. an escape sequence can be recognized by the / sign put in front of it

  B. II in ASCII stands for Internal Information

  C. ASCII is a subset of UNICODE

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

  Correct Answer: CD

• Question 53:

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

  A. open () requires a second argument

  B. open () is a function which returns an object that represents a physical file

  C. instd, outstd, errstd are the names of pre-opened streams

  D. if invoking open () fails, an exception is raised

  Correct Answer: BD

• Question 54:

  Which of the equations are True? (Select two answers)

  A. chr (ord (x)) = = x

  B. ord (ord (x)) = = x

  C. chr (chr (x)) = = x

  D. ord (chr (x)) = = x

  Correct Answer: AD

  https://docs.python.org/3/library/functions.html#chr https://docs.python.org/3/library/functions.html#ord

• Question 55:

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

  A. the sys.path variable is a list of strings

  B. _pycache_is a folder that stores semi-completed Python modules

  C. a package contents can be stored and distributed as an mp3 file

  D. a code designed to initialize a package's state should be placed inside a file named init.py

  Correct Answer: AB

• Question 56:

  Which of the following expression evaluate to True? (Select two answers)

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: CD

• Question 57:

  What is the expected behavior of the following code?

  

  A. it raises an exception

  B. it outputs True

  C. it outputs False

  D. it outputs nothing

  Correct Answer: B

• Question 58:

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

  A. the__name__variable always contains the name of a package

  B. a package is a group of related modules

  C. the pyc extension is used to mark semi-compiled Python packages

  D. a package is a single file whose name ends with the pa extension

  Correct Answer: BC

• Question 59:

  Assuming that the following piece of code has been executed successfully, which of the expressions evaluate to True? (Select two answers) A. obj_b.prop_a == 3

  

  B. hasattr(obj_b, 'prop_aa')

  C. isinstance(obj_c,A)

  D. B. VarA == 3

  Correct Answer: BC

• Question 60:

  Can a module run like regular code?

  A. yes, and it can differentiate its behavior between the regular launch and import

  B. it depends on the Python version

  C. yes, but it cannot differentiate its behavior between the regular launch and import

  D. no. it is not possible; a module can be imported, not run

  Correct Answer: A