Python-Assertions

Question 1

In python, how can you enable assertions globally for all modules in your program?

Use the - -enable-assertions command-line flag.

Set the PYTHONENABLEASSERTIONS environment variable.

Use the -a command-line flag.

Assertions cannot be enabled globally for all modules.

Question 2

When using assertions for debugging, what kind of conditions should you check?

Conditions that are likely to occur.

Conditions that are impossible to trigger.

Conditions that are only relevant to production code.

Conditions that are unrelated to the code's functionality.

Question 3

What will happen if an assertion fails in python?

The program continues without interruption.

The program terminates with an AssertionError.

The assertion message is printed, but the program continues.

Python automatically corrects the assertion.

Question 4

What is the main difference between using assertions and raising custom exceptions in python?

Assertions are used for input validation, while custom exceptions are used for debugging.

Assertions are handled as exceptions,while custom exceptions are not.

Assertions are typically used for debugging should be disabled in production, while custom exceptions are used for error handling.

There is no significant difference,they can be used interchangeably.

Question 5

Which keyword is used to write an assertion in python?

assert

validate

ensure

check

Question 6

How can you disable assertions in a specific module in python?

Use the --disable-assertions command-line flag.

Use the --ignore-assertions command-line flag.

Add the # assertions off comment at the beginning of the module.

Use the -D (disable) command-line flag.

Question 7

In python, what is the recommended approach for handling invalid function arguments?

Use assertions to validate the arguments.

Raise a custom exception to handle invalid arguments.

Ignore invalid arguments and continue execution.

Use the input function to prompt the user for valid arguments.

Question 8

In python, what is the role of the _ _debug_ _variable?

It controls the level of debugging information.

It indicates whether the code is running in debug mode.

It is used to toggle the assertion feature.

It is a reserved keyword and cannot be used in code.

Question 9

In Python, what is the recommended way to handle situations where code behavior is uncertain or context-dependent?

Use assertions to validate the behavior.

Rely on try-except blocks to catch exceptions.

Document the behavior in comments.

Avoid writing such code.

Question 10

What is the purpose of assertions in python code?

To provide custom error message to users.

To improve code performance.

To identify and address issues during development.

To replace try-except blocks.

Question 11

Which of the following is true about assertions in python?

Assertions are used for error handling.

Assertions are typically used in production code.

Assertions should only be used for testing and debugging.

Assertions can be turned off globally in python.

Question 12

In python, what is the purpose of the _ _debug_ _variable?

It controls the verbosity of error messages.

It is a flag that indicates whether assertions are enabled.

It is a special variable for debugging purposes.

It specifies the level of optimization for the python interpreter.

Question 13

What happens when an assertion with a custom message fails in python?

The custom message is printed, and the program continues.

The program terminates with an AssertionError, and the custom message is not displayed.

The program terminates with an AssertionError, and the custom message is displayed.

The custom message is printed, and the program asks for user input.

Question 14

Which of the following is NOT a valid use case for assertions in python?

Checking user input for correctness.

Verifying preconditions and postconditions.

Detecting programming errors during development.

Ensuring that a list is not empty before processing it.

Question 15

How can you enable assertions in python script that is executed from the command line?

Use the - -enable -assertions flag.

Use the -A(assertions)flag.

Use the -o(optmize) flag.

Use the -D(debug)flag.

Question 16

How can you disable all assertions in python?

Use the -o(optimize) command-line switch.

Use the-E(ignore assertions) command-line switch.

Use the -A(disable assertions) command-line switch.

Use the --disable-assertions flag.

Question 17

Which keyword is used to add a custom message to an assertion in python?

message

explain

note

None of the above.

Question 18

What is the primary difference between assertions and exceptions in python?

Assertions are used for user feedback, while exceptions are for debugging.

Assertions terminate the program, while exceptions can be caught and handled.

Assertions are always enabled, while exceptions can be turned off.

Assertions are used for input validation, while exceptions are used for checking conditions.

Question 19

Which of the following is NOT a recommended use case for assertions in python?

Validating user input from a web form.

Checking the length of a string before processing.

Verifying the correctness of calculations during development.

Ensuring that a list is not empty before performing operations.

Question 20

What is the purpose of assertions in python?

To handle exceptions

To check if a condition is true.

To create custom errors.

To terminate the program.

Question 21

In python, what should you do to prevent assertions from affecting your program 's performance in production?

Use assertions only in critical code sections.

Use assertions with the --optimize_ flag.

Use assertions for all input validation.

Use assertions in try-except blocks.

Question 22

When should you use assertions in your python code?

Only in unit tests.

Only in production code.

In both unit tests and debugging.

Never,as they are not recommended in python.

Question 23

When using assertions, which of the following is NOT a best practice?

Using complex conditions to check multiple factors in one assertion.

Providing clear and informative error messages.

Using assertions only for conditions that should never occur.

Disabling assertions in production code for performance.

Question 24

In python,what happen when an assertion fails while running the code in optimized mode?

The program continues without interruption.

The assertion message is displayed, and the program continues.

The program terminates with an AssertionError.

The assertion is ignored.

Question 25

Which of the following is a valid reason to use assertions in python code?

To replace error handling with assertions.

To improve code performance.

To provide better user feedback.

To identify and fix bugs during development.

Question 26

Which of the following is true about assertions in python?

Assertions should always be enabled in production code.

Assertions are recommended for handling exceptions.

Assertions can be used to validate user input.

Assertions should be used for code optimization.

Question 27

Which of the following statements is true about using assertions for input validation?

Assertions are suitable for input validation because they gracefully handle invalid input.

Using assertions for input validation is a recommended practice in python.

Input validation should be done using if-else statements, not assertions.

Assertions should only be used for debugging and not for input validation.

Question 28

What is the primary role of assertions in python code?

To provide custom error messages to users.

To handle runtime exceptions.

To document code for developers.

To check and validate assumptions during development.

Question 29

Which of the following is true about the assert statement in python?

It is used for error handling and exception handling.

It can be used to replace conditional statements.

It is mainly used for input validation.

It can only be used with built-in python functions.

Question 30

Which of the following is a valid use case for assertions in python?

Checking the file type of a downloaded file.

Verifying that a user's password meets security criteria.

Determining the size of a list.

Ensuring that a string contains only lowercase letters.

Question 31

What is the significance of the -o command-line switch in python?

It enables assertions

It disables assertions

It optimizes the code.

It stands for Output.

Question 32

Which of the following is true about assertions in python?

Assertions should be used for all kinds of error handling.

Assertions are automatically disabled in debug mode.

Assertions should be used sparingly and only for debugging.

Assertions are equivalent to raising exceptions.

Question 33

In python what is the purpose of the second argument in the assert statement?

It specifies the condition to be checked.

It provides a custom error message when the assertion fails.

It specifies the assertion in the code.

It is not used in the assert statement.

Question 34

In python, what is the recommended way to handle invalid user input?

Use assertions to validate the input.

Raise a custom exception to handle invalid input.

Ignore invalid input and continue execution.

Use the print function to display an error message.

Question 35

What is the primary purpose of using assertions in python?

To improve code performance.

To provide custom error messages.

To handle exceptions.

To catch bugs and detect issues early in development.

Question 36

Which of the following is NOT a common guideline for using assertions in python?

Use assertions for input validation.

Use meaningful error messages in assertions.

Disable assertions in production code.

Use assertions to replace all if-else statements.

Question 37

What happens when you use assertions to check user input, and the input is invalid?

The program continues without interruption.

The assertion message is displayed.

The program terminates with an AssertionError.

Assertions cannot be used for user input validation.

Question 38

Which of the following statements is true about assertions in python?

Assertions should be used for handling exceptions.

Assertions should always be enabled in production code.

Assertions can be disabled in production for better performance.

Assertions are equivalent to error handling with try-except blocks.

Question 39

In python ,what should you use to check if a list is empty, assertions, or conditional statements?

Assertions

Conditional statements.

Both assertions and conditional statements.

Neither assertions nor conditional statements.

Question 40

In python, which statement is true regarding the use of assertions in a program?

Assertions should be used to replace all if-else statements.

Assertions are typically used for input validation.

Assertions are used for error handling.

Assertions should always be enabled in production.

Question 41

What should you do if you want to provide a custom error message with an assertion that will not be displayed when the assertion fails in python?

Use a regular comment in the code.

Use a multi-line string for the assertion message.

Use a comment preceded by the # character.

There is no way to provide a custom message without displaying it.

Question 42

Which of the following is an appropriate use case for assertions in python?

Checking whether a file exists on disk.

Ensuring that a function parameter is not None.

Validating user input from a web form.

Verifying the result of a mathematical calculation.

Question 43

How do you enable or disable assertions in python?

By modifying the assert statement.

By using the enable_assertions function.

By setting the _ _debug_ _variable.

By using the _ _assertions command-line flag.

Question 44

What is the primary benefit of using assertions in python?

Improved performance.

Enhanced code security.

Early error detection during development.

Better error handling.

Question 45

When should you use assertions in production code?

Always, as they improve code reliability.

Never,as they can impact performance.

Only when performance is not a concern.

Occasionally,for critical error checks.

Question 46

What is the significance of the -E command-line switch in python?

It enables assertions.

It disables assertions.

It stands for Exception.

It optimizes the code.

Question 47

What should you use to handle runtime errors and exceptions in python?

Conditional statements

Assertions

Try-except blocks

Custom error messages

Question 48

Which of the following is true about the __debug__ variable in python?

It is automatically set to True in all python programs.

It is automatically set to False in all python programs.

Its value depends on the presence of assertions in the code.

It is a user-configurable setting in python.

Question 49

Which of the following is a valid use case for assertions in python?

Ensuring that a user's age is within a valid range.

Checking if a website is accessible.

Verifying the format of an email address.

Debugging an algorithm that sorts a list.

Question 50

What is the default behavior of assertions when running python in optimized mode?

Assertions are disabled.

Assertions are enabled.

Assertions are displayed as warnings.

Assertions are handled as exceptions.

Name

Phone

seema