Python Dictionary Quiz

Question 1

Question 1:Find the output of the following program:

Python3

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

Question 2

Question 2:Find the output of the following program:

Python3

D = {1 : 1, 2 : \'2\', \'1\' : 1, \'2\' : 3} 
D[\'1\'] = 2
print(D[D[D[str(D[1])]]]) 

• 2
• 3
• \'2\'
• KeyError

Question 3

Question 3:Find the output of the following program:

Python3

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

Question 4

Question 4:Find the output of the following program:

Python3

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

Question 5

Question 5:Find the output of the following program:

Python3

D = {1 : [1, 2, 3], 2: (4, 6, 8)} 
D[1].append(4) 
print(D[1], end = \" \") 
L = [D[2]]
L.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]

Question 6

Question 6:Find the output of the following program:

Python3

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}

Question 7

Question 7:Find the output of the following program:

Python3

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}
• { }

Question 8

Question 8:Find the output of the following program:

Python3

dict ={} 
print (all(dict)) 

• { }
• False
• True
• An exception is thrown

Question 9

Question 9:Find the output of the following program:

Python3

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

• True
• False
• Error
• None

Question 10

Question 10:Find the output of the following program: Which of these about a dictionary is false?

• 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