Certified Associate in Python Programming v1.0

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Exam contains 73 questions

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


Answer : B

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

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


Answer : D

Reference:
https://pythontips.com/2013/08/07/the-self-variable-in-python-explained/

The simplest possible class definition in Python can be expressed as:

  • A. class X:
  • B. class X: pass
  • C. class X: return
  • D. class X: { }


Answer : A

Reference:
https://docs.python.org/3/tutorial/classes.html

If you want to access an exception object’s components and store them in an object called e, you have to use the following form of exception statement:

  • A. except Exception (e) :
  • B. except e= Exception :
  • C. except Exception as e:
  • D. such an action is not possible in Python


Answer : C

Reference:
https://stackoverflow.com/questions/32613375/python-2-7-exception-handling-syntax

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


Answer : A

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

There is a stream named s open for writing. What option will you select to write a line to the stream?

  • A. s. write (“Hello\nâ€)
  • B. write (s, “Helloâ€)
  • C. s.writeln (“Helloâ€)
  • D. s. writeline (“Helloâ€)


Answer : A

Reference:
https://en.wikibooks.org/wiki/Python_Programming/Input_and_Output

You are going to read just one character from a stream called s. Which statement would you use?

  • A. ch = read (s, 1)
  • B. ch= s.input (1)
  • C. ch= input (s, 1)
  • D. ch= s.read (1)


Answer : D

Reference:
https://stackoverflow.com/questions/510357/python-read-a-single-character-from-the-user

What can you deduce from the following statement? (Select two answers)


  • A. str is a string read in from the file named file.txt
  • B. a newline character translation will be performed during the reads
  • C. if file. txt does not exist, it will be created
  • D. the opened file cannot be written with the use of the str variable


Answer : AD

The following class hierarchy is given. What is the expected out of the code?


  • A. BB
  • B. CC
  • C. AA
  • D. BC


Answer : D

Python’s built in function named open () tries to open a file and returns:

  • A. an integer value identifying an opened file
  • B. an error code (0 means success)
  • C. a stream object
  • D. always None


Answer : A

Reference:
https://www.programiz.com/python-programming/file-operation

Which of the following words can be used as a variable name? (Select two valid names)

  • A. for
  • B. True
  • C. true
  • D. For


Answer : AB

Reference:
https://www.pluralsight.com/guides/python-basics-variables-assignment

Python strings can be “glued†together using the operator:

  • A. .
  • B. &
  • C. _
  • D. +


Answer : D

Reference:
https://docs.python.org/3/tutorial/introduction.html

(Select two answers)

  • A. can be used as an identifier
  • B. is defined by Python’s lexis
  • D. cannot be used in the user’s code


Answer : BC

Reference:
https://www.programiz.com/python-programming/keywords-identifier

How many stars (*) does the snippet print?


  • A. the code is erroneous
  • B. five
  • C. four
  • D. two


Answer : A

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


Answer : AC

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Exam contains 73 questions

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