Quiz about Python Dictionary Quiz

Question 1

What will be the output of the following code?

Python

d = {'a': 5, 'b': 10}
d['a'] = 15
print(d)

{'a': 5, 'b': 10}
{'a': 15, 'b': 10}
Error
{'a': 15}

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Question 2

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 3

Find the output of the following program:

Python

d1 = {'GFG' : 1, 'Google' : 2, 'GFG1' : 3} 
print(d1['GFG'])

Compilation error due to duplicate keys
Runtime time error due to duplicate keys
3
1

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Question 4

Find the output of the following program:

Python

d = {} 

def addTodict(country): 
	if country in d: 
		d[country] += 1
	else: 
		d[country] = 1

addTodict('China') 
addTodict('Japan') 
addTodict('china') 

print (len(d))

0
1
2
3

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Question 5

Find the output of the following program:

Python

d = {1:'1', 2:'2', 3:'3'} 
del d[1] 
d[1] = '10'
del d[2] 
print (len(d) )

1
2
3
4

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Question 6

Find the output of the following program:

Python

a ={} 
a['a']= 1
a['b']=[2, 3, 4] 
print(a)

{‘b’: [2], ‘a’: 1}
{'a': 1, 'b': [2, 3, 4]}
{‘b’: [2], ‘a’: [3]}
Error

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Question 7

Find the output of the following program:

Python

d = {1:'A', 2:'B', 3:'C'} 
del d[1] 
d[1] = 'D'
del d[2] 
print(len(d))

Error
0
1
2

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Question 8

Find the output of the following program:

Python

a = {} 
a[1] = 1
a['1'] = 2
a[1]= a[1]+1
count = 0
for i in a: 
	count += a[i] 
print(count)

2
4
1
Error

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Question 9

Find the output of the following program:

Python

d ={1:"geek", 2:"for", 3:"geeks"} 
del d

del deletes the entire dictionary
del doesn’t exist for the dictionary
del deletes the keys in the dictionary
del deletes the values in the dictionary

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Question 10

Find the output of the following program:

Python

d = {"geek":10, "for":45, "geeks": 90} 
print("geek" in d)

10
False
True
Error

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