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

• Question 91:

  Is it possible to safely check if a class/object has a certain attribute?

  A. yes, by using the hasattr attribute

  B. yes, by using the hasattr ( ) method

  C. yes, by using the hassattr ( ) 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

• Question 92:

  Assuming that String is six or more letters long, the following slice

  String[1:-2]

  is shorter than the original string by:

  A. four chars

  B. three chars

  C. one char

  D. two chars

  Correct Answer: B

• Question 93:

  A compiler is a program designed to (select two answers)

  A. rearrange the source code to make it clearer

  B. check the source code in order to see if its correct

  C. execute the source code

  D. translate the source code into machine code

  Correct Answer: BD

  https://www.thoughtco.com/what-is-a-compiler-958322

• Question 94:

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

  

  A. class Class_4 (D, A) : pass

  B. class Class_1(C,D): pass

  C. class Class_3(A,C): pass

  D. class Class_2(B,D): pass

  Correct Answer: AB

• Question 95:

  You need data which can act as a simple telephone directory. You can obtain it with the following clauses (choose two relevant variants; assume that no other items have been created before)

  A. dir={'Mom':5551234567, 'Dad':5557654321>

  B. dir={'Mom':'5551234567', * Dad':'5557654321'}

  C. dir={Mom:5551234567, Dad:5557654321}

  D. dir={Mom:'5551234567', Dad:'5557654321'}

  Correct Answer: CD

• Question 96:

  What is the expected behavior of the following code?

  

  A. it outputs 0

  B. it outputs 1

  C. it raises an exception

  D. it outputs 2

  Correct Answer: C

• Question 97:

  If you want to transform a string into a list of words, what invocation would you use? (Select two answers)

  Expected output:

  

  A. s.split ()

  B. split (s, "~ "~)

  C. s.split ("~ "~)

  D. split (s)

  Correct Answer: AC

• Question 98:

  What is the expected behavior of the following code?

  

  A. it outputs 6

  B. it outputs 1

  C. it outputs 3

  D. it raises an exception

  Correct Answer: A

• Question 99:

  Which line can be used instead of the comment to cause the snippet to produce the following expected output? (Select two answers)

  Expected output:

  1 2 3

  Code:

  

  A. c, b, a = b, a, c

  B. c, b, a = a, c, b

  C. a, b, c = c, a, b

  D. a, b, c = a, b, c

  Correct Answer: AC

• Question 100:

  What is true about Object-Oriented Programming in Python? (Select two answers)

  A. if a real-life object can be described with a set of adjectives, they may reflect a Python object method

  B. the same class can be used many times to build a number of objects

  C. each object of the same class can have a different set of methods

  D. a subclass is usually more specialized than its superclass

  Correct Answer: BD