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Python Fundamentals and Programming Concepts Quiz

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Which of the following is NOT a valid variable name in Python?

123myVar

Explanation

Invalid because it starts with a digit.

What is the output of the following code snippet?

```python
print(3 * 2 ** 3)

Explanation

The result of 3 multiplied by 2 raised to the power of 3 is 24.

What is the output of the following code snippet?

```python
print(5 == 5.0)

True

Explanation

5 is equal to 5.0, hence the expression evaluates to True.

Which keyword is used to define a function in Python?

def

Explanation

'def' is used to define a function in Python.

In Python, what does the 'pass' statement do?

It is a null operation; nothing happens when it executes

Explanation

The 'pass' statement is used as a placeholder for code that does nothing.

Which of the following is a mutable data type in Python?

List

Explanation

Lists are mutable, meaning their elements can be changed after creation.

What is the purpose of a 'lambda' function in Python?

To define a function with a single expression

Explanation

Lambda functions are used to create anonymous functions, typically with a single expression.

In Python, what does the 'range()' function return?

An iterator

Explanation

The range() function returns an iterator that yields a sequence of numbers.

Which of the following is NOT a valid method of the 'list' class in Python?

push()

Explanation

'push()' is not a method of the list class in Python.

#10

What will be the output of the following code snippet?

```python
x = 'hello'
print(x[::-1])

olleh

Explanation

Reversing the string 'hello' results in 'olleh'.

#11

What will be the output of the following code snippet?

```python
x = [1, 2, 3]
print(x[3:])

[]

Explanation

Slicing from index 3 to the end of the list results in an empty list.

#12

What will be the output of the following code snippet?

```python
x = [1, 2, 3]
print(x[-2:])

[2, 3]

Explanation

Slicing from the second-to-last element to the end of the list returns [2, 3].

#13

What is the purpose of 'if name == 'main':' in Python scripts?

To check if the script is being run as the main program

Explanation

It allows code to be run when the script is executed directly, not when imported as a module.

Python Fundamentals and Programming Concepts Quiz

Which of the following is NOT a valid variable name in Python?

What is the output of the following code snippet?```pythonprint(3 * 2 ** 3)

What is the output of the following code snippet?```pythonprint(5 == 5.0)

Which keyword is used to define a function in Python?

In Python, what does the 'pass' statement do?

Which of the following is a mutable data type in Python?

What is the purpose of a 'lambda' function in Python?

In Python, what does the 'range()' function return?

Which of the following is NOT a valid method of the 'list' class in Python?

What will be the output of the following code snippet?```pythonx = 'hello'print(x[::-1])

What will be the output of the following code snippet?```pythonx = [1, 2, 3]print(x[3:])

What will be the output of the following code snippet?```pythonx = [1, 2, 3]print(x[-2:])

What is the purpose of 'if __name__ == '__main__':' in Python scripts?

Test Your Knowledge

What is the output of the following code snippet?

```python
print(3 * 2 ** 3)

What is the output of the following code snippet?

```python
print(5 == 5.0)

What will be the output of the following code snippet?

```python
x = 'hello'
print(x[::-1])

What will be the output of the following code snippet?

```python
x = [1, 2, 3]
print(x[3:])

What will be the output of the following code snippet?

```python
x = [1, 2, 3]
print(x[-2:])

What is the purpose of 'if name == 'main':' in Python scripts?