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

• Question 31:

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

  A. str(1-1) in '012345?39'[:2]

  B. 'phd' in 'alpha'

  C. 'deb' not in 'abcde' [::-1]

  D. 'True' not in 'False'

  Correct Answer: CD

• Question 32:

  A two-parameter lambda function raising its first parameter to the power of the second parameter should be declared as:

  A. lambda (x, y) = x ** y

  B. lambda (x, y): x ** y

  C. def lambda (x, y): return x ** y

  D. lambda x, y: x ** y

  Correct Answer: D

• Question 33:

  What can you do if you don't like a long package path tike this one0 import alpha.beta.gamma.delta.epsiIon.zeta

  A. you can make an alias for the name using the a 1 i a s keyword

  B. nothing; you need to come to terms with it

  C. you can shorten it to alpha. zeta and Python will find the proper connection

  D. you can make an alias for the name using die as keyword

  Correct Answer: D

  Reference: https://stackoverflow.com/questions/706595/can-you-define-aliases-for- imported-modules-in-python

• Question 34:

  A variable stored separately in every object is called:

  A. there are no such variables, all variables are shared among objects

  B. a class variable

  C. an object variable

  D. an instance variable

  Correct Answer: D

  Reference: https://dev.to/ogwurujohnson/distinguishing-instance-variables-from-class- variables-in-python-81

• Question 35:

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

  A. len('\'? == 1

  B. len(""" """) == o

  C. chr(ordCA') + 1) == 'B'

  D. ord("Z") - ord("z") -- ord("0")

  Correct Answer: B

• Question 36:

  Select the valid fun () invocations:

  (select two answers)

  def fun (a, b=0):

  return a*b

  A. fun(b=1)

  B. fun (a=0)

  C. fun(b=1, 0)

  D. fun (1)

  Correct Answer: BD

• Question 37:

  Assuming that the code below has been executed successfully, which of the following expressions will always evaluate to True? (Select two answers)

  import random

  v1 = random. random()

  v2 = random. random()

  A. len(random.sample([1,2,3],2)) > 2

  B. v1 == v2

  C. random.choice([1,2,3]) >=1

  D. v1 >= 1

  Correct Answer: BC

• Question 38:

  What is the expected behavior of the following code?

  

  A. It outputs False

  B. It outputs nothing

  C. It outputs True

  D. It raises an exception

  Correct Answer: A

• Question 39:

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

  A. 121 +1 == int ('1' + 2 * '2')

  B. float ('3.14') == str('3.'+'14')

  C. 'xyz'.lower() 'XY'

  D. '8' + '8' !=2 * '8'

  Correct Answer: AC

• Question 40:

  Is it possible to safely check if a class object has a certain attribute0

  A. yes, by using the hasattr attribute

  B. yes. by using the hasattr () method

  C. yes, by using the hasattr () function

  D. no, it is not possible

  Correct Answer: B

  Reference: https://stackoverflow.com/questions/610883/how-to-know-if-an-object-has-an- attribute-in-python