Week 9 COMPSCI Quiz Questions
What will be the output of the following Python code? def change(x = 0, y = 1): -----x = x + y -----y = y + 1 -----print(x, y) change(x = 0 , y = 1) change(x = 1 , y = 0) change(y = 1 , x = 0) change(y = 0 , x = 1)
1 2 1 1 1 2 1 1
Where is function defined in Python? - Module - Class - Another function - All of the mentioned
All of the mentioned
The function must return a value - T/F
False
What will be the output of the following Python code? def func(a, b=5, c=10): -----print('a is', a, 'and b is', b, 'and c is', c) func(3, 7) func(25, c = 24) func(c = 50, a = 100)
a is 3 and b is 7 and c is 10 a is 25 and b is 5 and c is 24 a is 100 and b is 5 and c is 50
Which correctly defines two parameters x and y for a function definition: def calc_val( ): - calc_val (x y) : - calc_val (x; y) : - calc_val (x, y) : - calc_val (x : y) :
calc_val (x, y) :
What will be the output of the following Python code? def foo( i, x=[ ]): -----x.append(i) -----return x if __name__ == "__main__": -----for i in range( 3 ): ----------print( foo( i ) )
[0] [0, 1] [0, 1, 2]
What will be the output of the following Python code? def change(a, b): -----a = a + 1 -----b = b + 1 -----print(a, b) change( a = 1, b = 0 ) change( a = 0, b = 1 )
2 1 1 2
What will be the output of the following Python code? def printMax(a, b): -----if a > b: ----------print(a, 'is maximum') -----elif a == b: ----------print(a, 'is equal to', b) -----else: ----------print(b, 'is maximum') x = 3 y = 4 printMax( x+1, y)
4 is equal to 4
What will be the output of the following Python code? def foo( arg1, *args ): -----result = 0 -----for i in args: ----------result += i -----return result print( foo(1, 2, 3) ) print( foo(1, 2, 3, 4, 5) )
5 14
What will be the output of the following Python code? def foo( *args ): -----result = 0 -----for i in args: ----------result += i -----return result print( foo(1, 2, 3) ) print( foo(1, 2, 3, 4, 5) )
6 15
What will be the output of the following Python code? def power(x, y=2): -----result = 1 -----for i in range(y): ----------result = result * x -----return result print( power(3) ) print( power(3, 3) ) print( power(4) ) print( power(4, 3) )
9 27 16 64
Which are the advantages of functions in python? - Reducing duplication of code - Decomposing complex problems into simpler pieces - Improving clarity of the code - All of above
All of above
What are the two main types of functions in Python? - System function & Customer function - System function & User function - Built-in function & User defined function - Built-in function & Customer defined function
Built-in function & User defined function
What will be the output of the following Python code? def say(message, times = 1): -----print(message * times) say('Hello') say('World', 5)
Hello WorldWorldWorldWorldWorld
A function definition must be evaluated by the interpreter before the function can be called - T/F
True
A local variable is defined inside a function, while a global variable is defined outside any function - T/F
True
Given a function definition: def calc_val(a, b, c): and given variables i, j, and k, which are valid arguments in the call calc_val( )? - calc_val( i, j ) - calc_val( i, j + k ) - calc_val( k, i+ j, 99 ) - calc_val( i + j + k )
calc_val( k, i+ j, 99 )
Which keyword is used for function? - fun - function - def - define
def
What will be the output of the following Python code? x = 50 def func( ): -----global x -----print('x is', x) -----x = 2 -----print('Changed global x to', x) func( ) print('x is now', x)
x is 50 Changed global x to 2 x is now 2
What will be the output of the following Python code? x = 50 def func(x): -----print('x is', x) -----x = 2 -----print('Changed local x to', x) func(x) print('x is now', x)
x is 50 Changed local x to 2 x is now 50
