What is the output of the program?

❌ Woof!
❌ Arff!
✅ *walking*
❌ AttributeError: 'JackRussellTerrier' object has no attribute 'walk'
❌ None of the mentioned

Explanation:
While bobo is an instance of JackRussellTerrier it still has a .walk() method. This method was inherited from the parent Dog class.

What is the output of the program?

❌ [1, 2, 3, 4, 5]
❌ [1, 2, 3, 4, 5, 6]
❌ [2, 3, 4, 5]
✅ [2, 3, 4, 5, 6]
❌ Error will occur
❌ None of the mentioned

Explanation:
The code line “second = first ” creates the shallow copy of the list. It means there will be a single list in memory. The first and second variables are pointed to the same list.
It does not maintain two separate lists, but only one. If you modify using one list variable, it will make the changes in the list for both variables.
If you want to maintain two separate lists for two list objects, you need to create a deep copy of the list.

What is the output of the program?

❌ 2 4
❌ 0 0
✅ 1 2 1 2
❌ -1 -2 -1 -2
❌ Error will occur
❌ None of the mentioned

Explanation:
"a * 2" means, string prints 2 times. "a * 0" means, string is empty.
Any string cannot be negative. Therefore, the string in the 3rd case will not print any word.

What is the result of the code?

❌ 300 400
✅ 100 400
❌ 100 200
❌ 300 200
❌ None of the above
❌ Error

Explanation:
In the above code x is a private variable declared in the class P. Thus value of x cannot be changed in the class C which inherits class P. But y is not a private variable thus its value can be changed.

What is the output of the code?

❌ 1 2 3
❌ 1 3 2
❌ 1 (3, 2)
❌ 1 (2, 3)
✅ 1 {'c': 3, 'b': 2}
❌ 1 {'c': 2, 'b': 3}
❌ Error
❌ None of the above

Explanation:
The code prints '1 {'c': 3, 'b': 2}', because 1 is passed to a by name and the **kargs collects the remaining keyword arguments into a dictionary. We could step through the extra keyword arguments dictionary by key with any iteration tool (e.g., for key in kargs: ...)

What is the output of the code?

❌ [1, 2, 3, 1, 2, 3] and [1, 2, 3, 1, 2, 3]
✅ [1, 2, 3] and [1, 2, 3, 1, 2, 3]
❌ [1, 2, 3, 1, 2, 3] and [1, 2, 3]
❌ [1, 2, 3] and [1, 2, 3]
❌ Error
❌ None of the above

Explanation:
The statement listA = listA * 2 inside the funcA creates a new list instead of modifying the original one.
Whereas the list extend() method modifies the original list.