ExamAdept

How do you define a default value for a function parameter?

A:

Using the default() keyword

B:

Using the set_default method

C:

Using the default_value parameter

D:

Using the parameter=default_value syntax

Answer: D

Default values for function parameters are specified using the parameter=default_value syntax.

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What will be the output of the following code snippet?

def square(x):
    return x ** 2

numbers = [1, 2, 3, 4]
squared_numbers = list(map(square, numbers))
print(squared_numbers)

A:

[1, 4, 9, 16]

B:

[1, 2, 3, 4]

C:

[2, 4, 6, 8]

D:

Error

Answer: A

The map() function applies the square function to each element in the numbers list.

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What is the purpose of the min() function?

A:

Finds the minimum value in a list

B:

Rounds a floating-point number down to the nearest integer

C:

Checks if a variable is of a certain type

D:

Converts a string to lowercase

Answer: A

The min() function is used to find the minimum value among the elements of an iterable, such as a list.

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What does the term "variable scope" refer to?

A:

The lifetime of a variable

B:

The region of the program where a variable can be accessed

C:

The data type of a variable

D:

The value assigned to a variable

Answer: B

Variable scope refers to the part of the program where a variable is accessible.

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What is the purpose of the __init__() method in Python classes?

A:

Initializes the class object

B:

Declares a new instance variable

C:

Defines the class constructor

D:

Prints the class attributes

Answer: C

The __init__() method is a special method in Python classes that is automatically called when a new instance of the class is created. It is used to initialize the object's attributes.

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Questions for: Functions