Python Functions Part – 1 | 7/100 Days of Python Algo trading

Congratulations on reaching this stage!

If you’re here, it means you’re truly dedicated to mastering Python. Directly below, you’ll find a quiz designed to help you reinforce what you’ve just learned. This isn’t just about recalling facts; it’s about deeply understanding the concepts. Take a moment to answer the questions and see how well you can apply the knowledge from the video. You’re doing great—every question you tackle brings you one step closer to becoming a Python expert!

Day 7: Python Functions

1. What is the primary purpose of using functions in algorithmic trading scripts?

A) To increase the execution speed of scripts

B) To reuse code blocks and enhance modularity

C) To generate random data

D) To directly interact with financial markets

2. Which keyword is used in Python to define a function?

A) function

B) def

C) func

D) declare

3. How do functions promote code readability in algorithmic trading systems?

A) By minimizing the use of variables

B) By organizing code into manageable blocks with specific tasks

C) By eliminating the need for comments

D) By using complex algorithms

4. What is a docstring in a Python function?

A) A string that documents what the function does, placed at the beginning of the function body

B) A variable that holds documentation

C) A special method that prints documentation

D) A type of function that does not require documentation

5. In the context of functions, what is the difference between a function definition and a function call?

A) A definition declares how a function works, a call executes the function

B) A definition executes the function, a call declares how it works

C) There is no difference; both terms mean the same

D) A definition is used in classes, a call is used in scripts

6. What is the difference between parameters and arguments in Python functions?

A) Parameters are used in function calls, arguments are used in function definitions

B) Parameters define the type of variables, arguments define the value of variables

C) Parameters are placeholders in function definitions, arguments are actual values passed

D) There is no difference; both are the same

7. What are positional arguments in Python functions?

A) Arguments that can be called by their position in the function call

B) Arguments that are always written first in a function call

C) Arguments that specify their position explicitly

D) Arguments named after their position in the dictionary

8. How does Python differentiate between keyword and positional arguments in a function call?

A) Positional arguments are listed first, followed by keyword arguments.

B) Keyword arguments are listed first.

C) Positional arguments can appear in any order.

D) Keyword arguments can be omitted.

9. What does the *args in a function definition in Python represent?

A) A syntax error

B) A single argument multiplied by itself

C) A way to pass a variable number of arguments to a function

D) An unnecessary part of modern Python

10. What does **kwargs allow you to do within a function?

A) Pass a fixed number of keyword arguments

B) Pass a variable number of keyword arguments

C) Pass keyword arguments with strict type checking

D) Pass only named arguments that are defined in the function

11. How are functions executed in memory in Python?

A) Using a queue system

B) Using a stack-based system where function calls form a Call Stack

C) Functions are not stored in memory

D) Using direct memory access without a stack or queue

12. What happens if a function in Python does not have a return statement?

A) It returns None by default

B) It causes a runtime error

C) It returns zero

D) It continues execution indefinitely

13. What is the scope of a local variable in Python?

A) It can be accessed anywhere in the module

B) It is accessible only within the function it is declared

C) It can be accessed globally across functions

D) It is accessible only outside the functions

14. Can a local variable affect a global variable directly inside a Python function?

A) Yes, modifications to a local variable always affect the global variable

B) No, unless explicitly declared using the global keyword

C) Yes, local variables are global by default

D) No, local variables are completely isolated

15. How can default arguments be used to enhance the flexibility of function calls?

A) By providing optional parameters that need not be passed every time

B) By forcing all arguments to be mandatory

C) By restricting the types of arguments passed

D) By making the function slower

16. What is the advantage of using variable-length arguments in trading algorithms?

A) To limit the number of inputs to a function

B) To allow functions to accept any number of inputs without overloading

C) To require at least one argument for every function call

D) To make the code more complex and secure

17. How do you define a function with a return statement in Python?

A) def function_name():

B) return function_name()

C) def function_name(): return value

D) function_name(): return value

18. In Python, what is the result of using the **kwargs in a function?

A) The function can only accept named parameters.

B) The function can accept an unlimited number of arguments, but only if they are dictionaries.

C) The function accepts any number of keyword arguments as a dictionary.

D) It results in a syntax error unless used inside classes.

19. What is a significant use of the **kwargs in a financial trading context?

A) To specify trading parameters like stop-loss, take-profit dynamically

B) To limit trading to specific hours

C) To force all trades to use the same parameters

D) To decrease the speed of execution

20. When is it appropriate to use global variables in a function within a trading algorithm?

A) When the variable needs to be shared across multiple functions

B) Never, global variables are discouraged

C) Always, as it simplifies code management

D) Only when the function does not return any values

 Loading...