5_sem

What is the output of print(2 ** 3 ** 2)?

• 512
• 64
• 16
• None of the above

Answer explanation

Exponentiation is right-associative, so 2 ** (3**2) = 512

Which of the following is immutable?

• List
• Set
• Dictionary
• Tuple

Answer explanation

Tuple is immutable

Which module in Python supports regular expressions?

• re
• regex
• pyregex
• string

Answer explanation

Python uses 're' module

What is the default recursion limit in Python?

• 500
• 1000
• 2000
• No limit

Answer explanation

Default recursion depth is 1000

Which keyword is used for function annotations?

• def
• ->
• as
• :

Answer explanation

Arrow (->) is used for return type annotation

a=[1,2,3]
b=a

b.append(4)
print(a,b)

• [1,2,3][1,2,3,4]

• [1,2,3,4],[1,2,3,4]

• [1,2,3,4][1,2,3]

• [1,2,3,4][1,2,3,4]

Answer explanation

Always returns string

What is Python’s built-in data type for arbitrary precision integers?

• int
• long
• bigint
• double

Answer explanation

int handles arbitrary precision

Which of these is not a Python keyword?

• pass
• eval
• assert
• nonlocal

Answer explanation

eval is built-in function, not keyword

Which operator is used for floor division?

• /
• //
• %
• **

Answer explanation

// is floor division

#include<stdio.h>
int main(){

int i=5;

printf(%d%d%d,i,i<<1,i>>1);

return 0;

}

• 5 5 2

• 5 10 2

• 5 2 10

• 5 1 2

Answer explanation

It becomes '__main__'