Basic Python Operations Quiz
10 Questions
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Basic Python Operations Quiz

Created by
@TalenlioAptitudeTrainer

Questions and Answers

What is the output of print(2 ** 3)?

  • 8 (correct)
  • 6
  • 2
  • 3
  • How do you reverse a list in Python?

  • `list.reverse()` (correct)
  • `reversed(list)`
  • `list[::-1]` (correct)
  • `list.sort()`
  • How can you check if a number is even in Python?

  • By using the expression `number % 2 == 0` (correct)
  • By using the function `is_even(number)`
  • By using the expression `number / 2 == 1`
  • By checking if `number` is less than 0
  • What is the difference between list.append() and list.extend()?

    <p>list.append() adds a single element to the end of the list, while list.extend() adds multiple elements.</p> Signup and view all the answers

    How do you remove duplicates from a list in Python?

    <p>Using the <code>set()</code> function</p> Signup and view all the answers

    How can you convert a string to lowercase in Python?

    <p>Using the <code>lower()</code> method</p> Signup and view all the answers

    How do you check if a string contains only digits?

    <p><code>string.isdigit()</code></p> Signup and view all the answers

    What is the output of print('Python'[1:4])?

    <p>'yth'</p> Signup and view all the answers

    How can you create a dictionary with keys from a list and all values set to zero?

    <p><code>{key: 0 for key in list}</code></p> Signup and view all the answers

    How do you find the length of a list in Python?

    <p>Using the <code>len()</code> function</p> Signup and view all the answers

    Study Notes

    Python Basics

    • print(2 ** 3) outputs 8, as it uses the exponentiation operator (**).
    • list.reverse() or list[::-1] are methods to reverse a list in Python.

    Number and String Operations

    • To check if a number is even, use number % 2 == 0.
    • string.lower() converts a string to lowercase.
    • Use string.isdigit() to check if a string contains only digits.

    Working with Lists

    • list.append(value) adds a single value to the end of a list, while list.extend(iterable) adds elements from an iterable.
    • To remove duplicates from a list, convert it to a set using set(list) and back to a list.
    • print('Python'[1:4]) outputs 'yth', as it slices the string from index 1 to 3.

    Dictionaries and Lists

    • Create a dictionary with keys from a list and values set to zero using {key: 0 for key in keys_list}.
    • Use len(list) to find the length of a list in Python.

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    Description

    Test your knowledge of basic Python operations with this quiz. Specifically, this question focuses on the exponentiation operator. Understand how to use power functions in Python and their outputs.

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