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Python Basics and Variables Quiz

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Questions and Answers

What are the two basic ways of running Python code?

Synchronous and asynchronous

Sequential and parallel

Procedural and object-oriented

Interpreted and compiled (correct)

What is a side effect in Python?

It occurs when a function modifies its environment in some way (correct)

It refers to an unexpected outcome of a function or method

It signifies an error in the output of a function

It indicates a change in the input parameters of a function

What is the difference between 'break' and 'continue' in Python?

'Break' is for conditional statements, while 'continue' is for iteration control.

'Break' is used for error handling, while 'continue' is used for flow control.

'Break' exits the loop completely, while 'continue' skips the current iteration and goes to the next one. (correct)

'Break' stops the program execution, while 'continue' returns to the beginning of the loop.

Which property of Python is responsible for the unexpected result: Result: 0.0 in the provided code snippet?

Floating point arithmetic accuracy Signup and view all the answers

What is the result of the logical statement not(x or (x and y)) for x = True and y = False?

False Signup and view all the answers

What is the result of the cast bool(7-15+8)?

False Signup and view all the answers

What is the main difference between head-controlled loop and base-controlled loop?

Head-controlled loops involve checking the condition before each iteration, while base-controlled loops check the condition after each iteration Signup and view all the answers

In Python, what is an immutable data structure?

A data structure that cannot be modified after it is created, such as a tuple Signup and view all the answers

What are the three basic types of sequences in Python?

Strings, lists, and tuples Signup and view all the answers

How can a function in Python be specified without providing an implementation?

By using the keyword 'pass' to indicate an empty function body Signup and view all the answers

What is the main difference between iterative and recursive functions?

Iterative functions use a loop to repeat a set of instructions, while recursive functions call themselves to repeat a set of instructions Signup and view all the answers

Which function is used to count the occurrences of an element in a list in Python?

count() Signup and view all the answers

What does the len() function do in Python?

Returns the length of a sequence (e.g., list, tuple) Signup and view all the answers

What does list comprehension do in Python?

Provides a concise way to create lists by iterating over an existing list Signup and view all the answers

'x[2:4]' in Python refers to:

<code>x</code> containing elements from index 2 up to (but not including) index 4 Signup and view all the answers

'x.count(5)' in Python returns:

The number of occurrences of 5 in list x Signup and view all the answers