For a function header as follows :
def Calc(X,Y = 20):
Which of the following function calls will give an error ?

1. Calc(15, 25)
2. Calc(X = 15, Y = 25)
3. Calc(Y = 25)
4. Calc(X = 25)

What is a variable defined outside all the functions referred to as ?

1. A static variable
2. A global variable
3. A local variable
4. An automatic variable

Carefully observe the code and give the answer.

def function1(a):
    a = a + '1'
        a = a * 2
>>>function1("hello")

1. indentation Error
2. cannot perform mathematical operation on strings
3. hello2
4. hello2hello2

What is the result of this code ?

def print_double(x):
    print(2 ** x)
print_double(3)

1. 8
2. 6
3. 4
4. 10