Python Test 2

Question 2: What is the output of the following code?

>>> a=100
>>> b=100
>>> id(a) == id(b)

• True
• False
• Error

Question 3: Which of the following function returns the type of a variable?

• gettype()
• print()
• help()
• type()

Question 4: Which of the following statements are correct?

• The variable names cannot start with a digit.
• Variables names in Python are case-sensitive.
• Variable names cannot start with the underscore _.
• Variable names can be reserved keywords.

Question 5: Which of the following are immutable?

• Number
• String
• Tuple
• All of the above

Question 6: What is true about complex numbers?

• The real and imaginary component can be float
• The real part should be an integer.
• Scientific notation cannot be used in complex number
• All of above

Question 7: The int() function can be useful to convert _____.

• string to Integer
• hexadecimal to integer
• float to int
• Complex number to int

Question 8: Which of the following is an invalid integer object in Python?

• 0o123
• 123
• 0123
• 0x123

Question 9: Which of the following is true about triple quoted strings?

• They are used to form string spanning over multiple lines
• Translate escape sequences literally when they are printed.
• Both are true
• Both are false

Question 10: Which of the following is mutable?

• List
• String
• Tuple
• Set

Question 11: The list.pop() function will ___________.

• remove the first element from a list
• remove the last element from a list
• none will be removed
• both will be removed

Question 12: What will be the output of the following?

lst=['Python', 'Java', 'C++'] 
lst.insert(len(L1),'SQL')
print(lst)

• ['Python', 'Java', 'C++', 'SQL']
• ['SQL', 'Python', 'Java', 'C++']
• ['Python', 'SQL', 'Java', 'C++']
• ['Python', 'Java', 'SQL', 'C++']

Question 13: What are list comprehensions?

• It is the process of creating list objects from tuples or dictionaries using for loop.
• It is an easy and compact syntax for creating a list from a string or another list.
• Short syntax of modifying the list.
• Short syntax of converting list to other collection types.

Question 14: What will be the output of the following code?

lst = [1, 2, 3, 4, 5]
print(lst[-5:-3])

• [1, 2]
• []
• [2,3]
• SyntaxError

Question 15: What will be the output of the following code?

lst = [1, 2, 3]
lst[:]=[4,5,6]
print(lst)

• [1,2,3]
• [4,5,6]
• [1,2,3,4,5,6]
• SyntaxError