Python Data Type

Question 1

Which of these is not a core data type?

• Lists
• Dictionary
• Tuples
• Class

Question 2

What data type is the object below ? L = [1, 23, ‘hello’, 1]

• List
• Dictionary
• Tuple
• Array

Question 3

Which of the following function convert a string to a float in python?

• int(x [,base])
• long(x [,base] )
• float(x)
• str(x)

Question 4

Question 1: Find the output of the following program:

Python3

nameList = [\'Harsh\', \'Pratik\', \'Bob\', \'Dhruv\'] 

pos = nameList.index(\"GeeksforGeeks\") 

print (pos * 3)

• GeeksforGeeks GeeksforGeeks GeeksforGeeks
• Harsh
• Harsh Harsh Harsh
• ValueError: \'GeeksforGeeks\' is not in list

Question 5

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 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

Which of the following statement(s) is TRUE?

1. A hash function takes a message of arbitrary length and generates a fixed length code.
2. A hash function takes a message of fixed length and generates a code of variable length.
3. A hash function may give the same hash value for distinct messages.

• I only

• II and III only

• I and III only

• II only