Quiz  /  Python Gate & PSU MCQ Questions With Answers

  • 1. 
    You have the following dictionary definition:d = {'foo': 100, 'bar': 200, 'baz': 300}What method call will delete the entry whose value is 200?

  • delete d('bar')
  • d.pop("bar")
  • d.remove("bar")
  • None of the above

  • 2. 
    Which of the following could be a valid dictionary key:

  • (3+2j)
  • ('foo', 'bar')
  • 'foo'
  • All Of above

  • 3. 
    Which of the following is not a valid way to define this dictionary in Python:

  • d = dict([ ('foo', 100), ('bar', 200), ('baz', 300)])
  • d = {}d['foo'] = 100d['bar'] = 200d['baz'] = 300
  • d = dict(foo=100, bar=200, baz=300)
  • d = {'foo': 100, 'bar': 200, 'baz': 300}
  • d = { ('foo', 100), ('bar', 200), ('baz', 300) }

  • 4. 
    Suppose you have a dictionary d1. Which of the following effectively creates a variable d2 which contains a copy of d1:

  • d2 = dict(d1.items())
  • d2 = {}d2.update(d1)
  • d2 = dict(d1)
  • All Of above

  • 5. 
    What would be the output of the following code snippet?

  • 'blue''apple''dog'
  • colorfruitpet
  • blueappledog
  • 'color''fruit''pet'

  • 6. 
    Suppose x is defined as follows:x = [ 'a', 'b', { 'foo': 1, 'bar': { 'x' : 10, 'y' : 20, 'z' : 30 }, 'baz': 3 }, 'c', 'd']What is the expression involving x that accesses the value 30?

  • x[2]["bar"]["z"]
  • x[2]["bar"]
  • x["bar"]["z"]
  • x[2]["bar"]["z"][3]

  • 7. 
    Consider the following statement:If you just need to work with the keys of a dictionary, then you can use .keys(), which is a method that returns a new view object containing the dictionary’s keys.Is this statement True or False?

  • False
  • True

  • 8. 
    Consider this dictionary:d = {'foo': 100, 'bar': 200, 'baz': 300}What is the result of this statement:d['bar':'baz']

  • It raises an exception
  • (200, 300)
  • 200 300
  • [200, 300]

  • 9. 
    Which of the following are true of Python dictionaries:

  • Dictionaries can be nested to any depth.
  • Dictionaries are accessed by key.
  • All the keys in a dictionary must be of the same type.
  • Dictionaries are mutable.
  • A dictionary can contain any object type except another dictionary.
Report Question
warning
access_time
  Time