Python Dictionary Quiz

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Question 1

Find the output of the following program:

Python 
d = dict() 
for x in enumerate(range(2)): 
	d[x[0]] = x[1] 
	d[x[1]+7] = x[0] 
print(d)

  • {0: 1, 7: 0, 1: 1, 8: 0}

  • {1: 1, 7: 2, 0: 1, 8: 1}

  • {0: 0, 7: 0, 1: 1, 8: 1}

  • KeyError

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Question 2

Find the output of the following program:

Python 
d = {1 : 1, 2 : '2', '1' : 1, '2' : 3} 
d['1'] = 2
print(d[d[d[str(d[1])]]])

  • 2

  • 3

  • \'2\'

  • KeyError

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Question 3

Find the output of the following program:

Python 
d = {1 : {'A' : {1 : "A"}, 2 : "B"}, 3 :"C", 'B' : "D", "D": 'E'} 
print(d[d[d[1][2]]], end = " ") 
print(d[d[1]["A"][2]])

  • C B

  • E Key Error

  • B D

  • D B

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Question 4

Find the output of the following program:

Python 
d = dict() 
for i in range (3): 
	for j in range(2): 
		d[i] = j 
print(d)

  • {0: 0, 1: 0, 2: 0}

  • {0: 1, 1: 1, 2: 1}

  • {0: 0, 1: 0, 2: 0, 0: 1, 1: 1, 2: 1}

  • TypeError: Immutable object

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Question 5

Question 5:Find the output of the following program:

Python 
d = {1 : [1, 2, 3], 2: (4, 6, 8)} 
d[1].append(4) 
print(d[1], end = " ") 
li = [d[2]]
li.append(10) 
d[2] = tuple(L) 
print(d[2])

  • [1, 2, 3, 4] ((4, 6, 8), 10)

  • [1, 2, 3, 4] (4, 6, 8, 10)

  • [1, 2, 3, 4] TypeError: tuples are immutable

  • [1, 2, 3, 4] [4, 6, 8, 10]

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Question 6

Find the output of the following program:

Python 
a = {i: i * i for i in range(6)} 
print (a)

  • Dictionary comprehension doesn’t exist

  • {0: 0, 1: 1, 2: 4, 3: 9, 4: 16, 5: 25, 6:36}

  • {0: 0, 1: 1, 4: 4, 9: 9, 16: 16, 25: 25}

  • {0: 0, 1: 1, 2: 4, 3: 9, 4: 16, 5: 25}

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Question 7

Find the output of the following program:

Python 
a ={} 
a.fromkeys(['a', 'b', 'c', 'd'], 98) 
print (a)

  • Syntax error

  • {‘a’:98, ‘b’:98, ‘c’:98, ‘d’:98}

  • {‘a’:None, ‘b’:None, ‘c’:None.’d’:None}

  • { }

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Question 8

Find the output of the following program:

Python 
dict ={} 
print (all(dict))

  • { }

  • False

  • True

  • An exception is thrown

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Question 9

Find the output of the following program:

Python 
a = {'geeks' : 1, 'gfg' : 2} 
b = {'geeks' : 2, 'gfg' : 1} 
print (a == b)

  • True

  • False

  • Error

  • None

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Question 10

Which of the following is false about dictionary?

  • The values of a dictionary can be accessed using keys

  • The keys of a dictionary can be accessed using values

  • Dictionaries may or may not be ordered

  • None of the above

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There are 24 questions to complete.

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