Python Data Strucures

Which statement is correct?

• List is immutable and Tuple is mutable

• List is mutable and Tuple is immutable

• Both are Mutable.

• Both are Immutable

Suppose a list with name arr, contains 5 elements. You can get the 2nd element from the list using:

• arr[-2]

• arr[2]

• arr[-1]

• arr[1]

How to get last element of list in python? Suppose we have list with name arr, contains 5 elements.

• arr[0]

• arr[5]

• arr[last]

• arr[-1]

Which one of the following is immutable data type?

• dict

• int

• set

• list

Which one of the following is mutable data type?

• tuple

• str

• int

• set

What is the output of the following program :

print((1, 2) + (3, 4))

• (1, 2), (3, 4)

• (4, 6)

• (1, 2, 3, 4)

• Invalid Syntax

Can tuple be used as dictionary key in python?

• True

• False

• Tuple is not used in python

• None of the above

What type of data is: arr = [(1,1),(2,2),(3,3)]?

• Array of tuples

• Tuples of lists

• List of tuples

• Invalid type

Suppose a tuple arr contains 10 elements. How can you set the 5th element of the tuple to 'Hello'?

• arr[4] = 'Hello'

• arr(4) = 'Hello'

• arr[5] = 'Hello'

• Elements of tuple cannot be changed

How to copy one list to another in python?

• l1[ ] = l2[ ]

• l1[ ] = l2

• l1[ ] = l2[:]

• l1 = l2