Functions In Python — Part 1 MCQs with Explanations

In Python, you can make a parameter optional by assigning it a default value in the function definition. When a default value is specified, the parameter becomes optional, and the function can be called without explicitly passing a value for it. For example: def greet(name="Guest"): print(f"Hello, {name}!") Here, the parameter name is optional because it has a default value of "Guest". Note: If no value is provided when the function is called, the default value will be used.

Correct Answer: A) By using the **kwargs syntax Keyword Arguments: In Python, keyword arguments are arguments passed to a function along with a name (the keyword) and a value. Example: my_function(name="Alice", age=30) Variable Number of Keyword Arguments: Sometimes, you don't know in advance how many keyword arguments a function might receive. That's where **kwargs comes in. kwargs Explained: * The **kwargs syntax allows a function to accept any number of keyword arguments. * kwargs is just a name (you could technically use another name), but ** is what's important. It tells Python to collect all the keyword arguments into a dictionary. * Inside the function, kwargs acts like a regular dictionary where the keys are the argument names (like "name" and "age") and the values are the corresponding argument values (like "Alice" and 30). Why the other options are incorrect: * Option B ( *args ): Used to pass a variable number of positional arguments. It collects them into a tuple, not a dictionary. * Option C ( * symbol): Used for other purposes such as unpacking iterables or enforcing keyword-only arguments, but not for passing keyword arguments. * Option D ( ... symbol): The ellipsis has special meanings like use in type hints or as a placeholder, but is not related to passing arguments to functions. Therefore, the correct answer is Option A: By using the **kwargs syntax .

It ends the execution of the function is the correct answer to “What does the return statement in a function do”. This question is standard in competitive examination syllabi for Functions In Python.

2nd_function is the correct answer to “Which of the following is NOT a valid function name in Python”. This question is standard in competitive examination syllabi for Functions In Python.

It is used to define a function is the correct answer to “What is the purpose of the def keyword in Python”. This question is standard in competitive examination syllabi for Functions In Python.

It is a placeholder for future code is the correct answer to “What is the purpose of the pass statement in a function”. This question is standard in competitive examination syllabi for Functions In Python.

It is used to create anonymous functions (lambda functions) is the correct answer to “What does the lambda keyword do when used in a function”. This question is standard in competitive examination syllabi for Functions In Python.

It allows a variable to be modified outside the current scope is the correct answer to “What is the purpose of the global keyword do when used in a function”. This question is standard in competitive examination syllabi for Functions In Python.

It ends the execution of the function is the correct answer to “What is the purpose of the return statement in a function”. This question is standard in competitive examination syllabi for Functions In Python.

It is a reserved keyword in Python is the correct answer to “What does the *args syntax in a function definition mean”. This question is standard in competitive examination syllabi for Functions In Python.

It allows a function to call itself is the correct answer to “What is the purpose of using recursion in a function”. This question is standard in competitive examination syllabi for Functions In Python.

Hello, Alice! is the correct answer to “What is the output of the following code: def greet(name): print(f"Hello, {name}!") greet("Alice")”. This question is standard in competitive examination syllabi for Functions In Python.

A global variable is the correct answer to “What is a variable defined outside a function referred to as”. This question is standard in competitive examination syllabi for Functions In Python.

sys.argv is the correct answer to “Where are the arguments received from the command line stored”. This question is standard in competitive examination syllabi for Functions In Python.

It allows a dictionary of arguments to be passed is the correct answer to “What is the purpose of using the ** symbol in function argument unpacking”. This question is standard in competitive examination syllabi for Functions In Python.

6 15 is the correct answer to “What will be the output of the following Python code? def sum(*args): '''Function returns the sum of all values''' r = 0 for i in args: r += i return r print sum.__doc__ print sum(1, 2, 3) print sum(1, 2, 3, 4, 5)”. This question is standard in competitive examination syllabi for Functions In Python.

9996 is the correct answer to “What will be the output of the following Python code? min = (lambda x, y: x if x < y else y) min(101*99, 102*98)”. This question is standard in competitive examination syllabi for Functions In Python.

True is the correct answer to “The nested list undergoes shallow copy even when the list as a whole undergoes deep copy.”. This question is standard in competitive examination syllabi for Functions In Python.

('3456',) is the correct answer to “What will be the output of the following Python code? x = [34, 56] print((''.join(list(map(str, x))),))”. This question is standard in competitive examination syllabi for Functions In Python.

7 is the correct answer to “What will be the output of the following Python code? x = [[0], [1]] print(len(' '.join(list(map(str, x)))))”. This question is standard in competitive examination syllabi for Functions In Python.

error is the correct answer to “What will be the output of the following Python code? x = ['ab', 'cd'] print(len(list(map(list, x))))))”. This question is standard in competitive examination syllabi for Functions In Python.

False is the correct answer to “What will be the output of the following Python code? l1=[1, 2, 3, [4]] l2=list(l1) id(l1)==id(l2)”. This question is standard in competitive examination syllabi for Functions In Python.

zzz is the correct answer to “What will be the output of the following Python code? def display(b, n): while n > 0: print(b,end="") n=n-1 display('z',3)”. This question is standard in competitive examination syllabi for Functions In Python.

3 1 is the correct answer to “What will be the output of the following Python code? def foo(fname, val): print(fname(val)) foo(max, [1, 2, 3]) foo(min, [1, 2, 3])”. This question is standard in competitive examination syllabi for Functions In Python.

27 is the correct answer to “What will be the output of the following Python code? def cube(x): return x * x * x x = cube(3) print x”. This question is standard in competitive examination syllabi for Functions In Python.

It provides documentation for the function is the correct answer to “What is the purpose of a docstring in a function”. This question is standard in competitive examination syllabi for Functions In Python.

x is the correct answer to “What will be the output of the following Python code? def f1(): global x x+=1 print(x) x=12 print("x")”. This question is standard in competitive examination syllabi for Functions In Python.

True, False is the correct answer to “What will be the output of the following Python code? l1=[10, 20, 30] l2=l1 id(l1)==id(l2) l2=l1.copy() id(l1)==id(l2)”. This question is standard in competitive examination syllabi for Functions In Python.

two stars followed by a valid identifier is the correct answer to “How are keyword arguments specified in the function heading”. This question is standard in competitive examination syllabi for Functions In Python.

num*fact(num-1) is the correct answer to “Fill in the line of the following Python code for calculating the factorial of a number. def fact(num): if num == 0: return 1 else: return _____________________”. This question is standard in competitive examination syllabi for Functions In Python.

100 is the correct answer to “What will be the output of the following Python code? def fun(n): if (n > 100): return n - 5 return fun(fun(n+11)); print(fun(45))”. This question is standard in competitive examination syllabi for Functions In Python.

[0, 4, 16, 36, 64] is the correct answer to “What will be the output of the following Python code? list(map((lambda x:x**2), filter((lambda x:x%2==0), range(10))))”. This question is standard in competitive examination syllabi for Functions In Python.

2 is the correct answer to “What will be the output of the following code: def my_function(a, b): return a / b result = my_function(4, 2) print(result)”. This question is standard in competitive examination syllabi for Functions In Python.

[] is the correct answer to “What will be the output of the following Python code? a = [1, 2, 3, 4, 5] b = lambda x: (b (x[1:]) + x[:1] if x else []) print(b (a))”. This question is standard in competitive examination syllabi for Functions In Python.

Every recursive function must have a return value is the correct answer to “Which of the following statements is false about recursion”. This question is standard in competitive examination syllabi for Functions In Python.

Recursive calls take up less memory is the correct answer to “Which of these is not true about recursion”. This question is standard in competitive examination syllabi for Functions In Python.

[2, 3, 0, 1, 6, 7, 4, 5, 10, 11] is the correct answer to “What will be the output of the following Python code? list(map((lambda x:x^2), range(10)))”. This question is standard in competitive examination syllabi for Functions In Python.

Each import package need not introduce a namespace is the correct answer to “Which of these is false about a package”. This question is standard in competitive examination syllabi for Functions In Python.

False is the correct answer to “Lambda contains block of statements.”. This question is standard in competitive examination syllabi for Functions In Python.

Program gets into an infinite loop is the correct answer to “What happens if the base condition isn't defined in recursive programs”. This question is standard in competitive examination syllabi for Functions In Python.