Python Decorator

Question 1

Which of the following is a valid example of a python decorator?

@staticmethod

@for_loop

@if_statement

@my_function()

Question 2

Which decorator is used to specify a time limit for a function's execution?

@timeout

@time_limit

@limit_time

@function_time

Question 3

What does the @with_lock decorator do in python?

It unlocks a thread.

It locks a thread.

It modifies the behavior of a function.

It is used for file I/O operations.

Question 4

What is the primary purpose of the @singleton decorator in python?

To restrict access to a function.

To ensure that only one instance of a class exists.

To modify the behavior of a function.

To create a new instance of a class.

Question 5

What is the primary use of the @lru_cache decorator in python?

To apply a caching mechanism to a function.

To check for syntax errors in a function.

To restrict access to a function.

To create a decorator for user authentication.

Question 6

What does the "@" symbol indicate in a decorator?

A multiplication operation.

A function call.

A decorator is being applied.

A string interpolation.

Question 7

In python, which decorator is used to specify the expected type of a function's return value?

@expect_type

@return_type

@type_check

@validate_return

Question 8

What is a decorator in python?

A design pattern for adding functionality to objects dynamically.

A build-in python data type.

An object that stores metadata about functions.

A way to create classes.

Question 9

What does the @retry_on_exception decorator do in python?

It repeats the execution of a function if it raises an exception.

It prevent a function from raising exception.

It marks a function as deprecated.

It retries a function with different arguments.

Question 10

Which of the following decorator is used for parameter validation in python?

@validate

@check_parameters

@param_validate

@param_check

Question 11

What is the primary difference between a function and a method in python?

Functions are defined inside classes, while method are defined outside classes.

Function are used for mathematical calculations, while methods are used for logic.

Functions are not associated with objects, while methods are associated with objects.

There is no difference; the term are used interchangeable.

Question 12

Which decorator is used to create a log entry for a function's execution in python?

@log

@log_function

@log_entry

@log_execution

Question 13

What is the primary use of the @memoize decorator in python?

To log function calls.

To restrict access to a function.

To cache the results of a function for faster execution.

To create singleton objects.

Question 14

Which of the following is not a built-in decorator in python?

@staticmethod

@classmethod

@property

@validate

Question 15

Which decorator is used to modify the behavior of function based input condition?

@conditional

@if

@modify

@adjust

Question 16

Which built-in decorator is used to create a setter method for a property?

@setter

@get

@property

@staticmethod

Question 17

What is the role of the inner function in a decorator?

To execute the decorated function.

To validate the inputs.

To apply the decorator.

To store metadata about the decorated function.

Question 18

What is a common use case for decorators in python?

Defining new classes.

Implementing complex mathematical operation.

Implementing logging, authentication, or validation.

Creating graphical user interfaces.

Question 19

What is the primary purpose of the @check_output decorator in python?

To restrict the output of a function.

To modify the output of a function.

To validate the function's output.

To log function calls.

Question 20

How do you apply multiple decorators to a single function in python?

You cannot apply multiple decorators to a single function.

You can apply multiple decorators using a single "@" symbol.

You can stack decorators on top of each other using multiple"@" symbols.

You must define a new decorator that combines the others.

Question 21

Which decorator is used to convert a class method into a static method?

@classmethod

@staticmethod

@static

Question 22

What is the primary use of the @validate_output decorator in python?

To check the output of a function.

To restrict the output of a function.

To modify the output of a function.

To mark a function as deprecated.

Question 23

Which decorator is used to specify that a function should be run as a daemon thread?

@daemon

@thread

@as_daemon

@run_daemon

Question 24

What is the purpose of the @wraps decorator from the functools module?

It defines a new decorator.

It modifies the behavior of an existing decorator.

It preserves the original function's metadata when using decorators.

It used for creating context managers.

Question 25

What is the primary purpose of the @log_function_call decorator?

To log function calls for debugging purposes.

To modify the behavior of a function.

To create new function.

To add authentication to function.

Question 26

Which decorator is commonly used for defining properties in python classes?

@classmethod

@staticmethod

@property

@getter

Question 27

When should decorator be defined in python?

Only at the beginning of a python script.

Anywhere in the code, as long as it's before the decorated function.

Only in a separate module.

They should not be defined; they are used directly.

Question 28

Which decorator is used for adding a custom message to a function in python?

@message

@custom_message

@description

@docstring

Question 29

In python, where is the result of a decorated function stored?

In a separate file.

In the function definition.

In a decorator- specific module.

Nowhere, it's applied dynamically at runtime.

Question 30

What is the primary use of the @contextmanager decorator in python?

To create context managers.

To manage file I/O operations.

To modify the behavior of a function.

To implement a logging system.

Question 31

What is the purpose of the @staticmethod decorator in python?

It marks a method as a class method.

It marks a method as a static method that doesn't access instance data.

It defines a property.

It is used for authentication.

Question 32

Which python build-in decorator is used to indicate that a method is not yet implemented?

@notimplemented

@not_ready

@abstractmethod

@incomplete

Question 33

What is the primary use of the @mock decorator in python?

To create mock objects for testing.

To log function calls.

To create a new function.

To optimize a function's performance.

Question 34

Which decorator is used to specify the maximum number of allowed function arguments in python?

@max_args

@args_limit

@validate_args

@check_args

Question 35

Which built-in python decorator is used to define a class method?

@classmethod

@staticmethod

@property

@instance-method

Question 36

What does the @enforce decorator do in python?

It enforces access control on a function.

It restricts the use of a function.

It marks a function as deprecated.

It optimizes a function's performance.

Question 37

What is the primary purpose of the @sanitize decorator in python?

To ensure the function's inputs are sanitized.

To create a new function.

To restrict access to a function.

To log function calls.

Question 38

Which decorator is used to mark a function as deprecated in python?

@obsolete

@deprecated

@old

@outdated

Question 39

Which decorator is used to ensure that a function only runs once in python?

@run_once

@once

@singleton

@execute_once

Question 40

What dose the @retry decorator do in python?

It reverts the changes made by a function.

It repeats the execution of a function multiple time if it fails.

It pauses the execution of a function.

It marks a function as deprecated.

Question 41

Which of the following is not a built-in python decorator for class methods?

@classmethod

@staticmethod

@property

@instance_method

Question 42

What is the primary purpose of the @check_input decorator in python?

To check if a function is valid.

To validate the function's inputs.

To optimize the function's performance.

To log function calls.

Question 43

In python, which decorator is used to specify the required version of a function?

@version

@required_version

@validate_version

@check_version

Question 44

In python, which decorator is used to mark a method for deletion?

@delete

@remove

@staticmethod

@deprecated

Question 45

Which decorator is used for measuring the execution time of a function in python?

@measure-time

@timeit

@execution_time

@performance

Question 46

In python, which decorator is used to specify the number of times a function should be executed?

@repeat

@times

@execute

@run

Question 47

What is the primary purpose of using decorators in python?

To create new functions.

To modify existing functions or methods.

To group functions together.

To document code.

Question 48

What does the @synchronized decorator do in python?

It enforces thread safety on a function.

It synchronizes access to a shared resource.

It pauses the execution of a function.

It is used for authentication.

Question 49

What is the purpose of the @require decorator in python?

To indicate a required parameter for a function.

To validate input parameter.

To create a new function.

To enforce access control.

Question 50

Which symbol is commonly used to denote a decorator in python?

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brijesh