Web Development Basics Quiz
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Questions and Answers

Which statement correctly defines the purpose of the 'random_number' function in the Faker library?

  • It generates a random number with a fixed number of digits. (correct)
  • It creates a random number limited to the provided min and max values.
  • It accepts an integer input for a specific range and returns a list of random numbers.
  • It returns a random float number between 0 and 1.

    • What is the function of the 'INSTALLED_APPS' setting in Django's settings.py file?

  • It contains the database connection details.
  • It configures the middleware used by Django.
  • It lists all the applications that are activated for the project. (correct)
  • It defines the URL routing for the Django application.

    • What does the 'list_display' attribute in the StudentAdmin class control?

  • It sets up the permissions for the Student model in the admin site.
  • It determines the fields accessible via the Django API.
  • It restricts the fields that can be edited in the admin panel.
  • It specifies which fields to display in the admin interface for the Student model. (correct)

    • In the 'Student' model class, which field type is used for storing student names?

    <p>CharField</p> Signup and view all the answers

    What is the purpose of the 'print' statements in the code provided for Faker?

    <p>To output the generated fake data to the console.</p> Signup and view all the answers

    Which of the following technologies is mandatory for web development?

    <p>HTML</p> Signup and view all the answers

    What is the main purpose of CSS in web development?

    <p>To add styles to HTML Pages</p> Signup and view all the answers

    Which of the following statements is true regarding dynamic responses?

    <p>They change based on user input or time.</p> Signup and view all the answers

    Which backend technology is identified as the best choice for its simplicity and libraries?

    <p>Python</p> Signup and view all the answers

    What role does the backend play in a web application?

    <p>Generates responses shown on the front-end.</p> Signup and view all the answers

    Which of the following is NOT a component of the backend?

    <p>HTML</p> Signup and view all the answers

    Which of the following describes the purpose of JavaScript in web development?

    <p>To enable interactivity and dynamic content.</p> Signup and view all the answers

    What is an example of a static response in a web application?

    <p>Home page of a bank.</p> Signup and view all the answers

    What is the primary purpose of Django as a web application framework?

    <p>To simplify the development of web applications</p> Signup and view all the answers

    Which command is used to check the installed version of Django?

    <p>py -m django --version</p> Signup and view all the answers

    What is true about Django applications?

    <p>Django applications are self-contained and perform specific tasks</p> Signup and view all the answers

    What should be installed first before creating a Django application?

    <p>Django project</p> Signup and view all the answers

    Which of the following statements is correct regarding VS Code IDE?

    <p>It provides several auto-completion shortcuts for development</p> Signup and view all the answers

    What is the relationship between a Django project and applications within it?

    <p>A project is a collection of applications and configurations</p> Signup and view all the answers

    Which version of Django is being installed in the command example given?

    <p>2.1</p> Signup and view all the answers

    What is a notable feature of pluggable Django applications?

    <p>They can be used across multiple projects</p> Signup and view all the answers

    What is the purpose of the clean_name method in the FeedBackForm class?

    <p>To validate the name length must be at least 4 characters.</p> Signup and view all the answers

    What will happen if the clean method raises a ValidationError?

    <p>The form will not be submitted, and an error will be displayed.</p> Signup and view all the answers

    Which of the following methods is used to validate the feedback field in the FeedBackForm?

    <p>clean_feedback</p> Signup and view all the answers

    What is the significance of calling self.cleaned_data in the clean methods?

    <p>It allows access to the data submitted by the user for validation.</p> Signup and view all the answers

    What will the clean_rollno method return if no validation errors occur?

    <p>The input value provided by the user.</p> Signup and view all the answers

    Which statement regarding Django's inbuilt core validators is true?

    <p>They can be used directly without manual implementation.</p> Signup and view all the answers

    What will be printed in the console if the clean_name method is executed successfully?

    <p>validating name</p> Signup and view all the answers

    What is an implicit characteristic of using the clean methods in Django forms?

    <p>They do not require explicit calling, Django handles it automatically.</p> Signup and view all the answers

    What is the purpose of the view defined in the views.py file?

    <p>To prepare responses for end-users based on business logic.</p> Signup and view all the answers

    Which type of views are being used in the provided Django application?

    <p>Function Based Views</p> Signup and view all the answers

    What must every view function in Django accept as an argument?

    <p>request</p> Signup and view all the answers

    What does the return statement in the display function return?

    <p>An instance of HttpResponse containing a greeting message</p> Signup and view all the answers

    What is the correct URL pattern defined for the display view in the urls.py?

    <p>url(r'^greetings/', views.display)</p> Signup and view all the answers

    Which statement about INSTALLED_APPS is true?

    <p>It includes all the applications that are enabled for the Django project.</p> Signup and view all the answers

    What type of HTTP response does a view function return in Django?

    <p>HttpResponse object</p> Signup and view all the answers

    Which line in the urls.py file imports the views from the firstApp?

    <p>from firstApp import views</p> Signup and view all the answers

    What is the main purpose of the Django auth application?

    <p>To provide user authentication and authorization.</p> Signup and view all the answers

    Which hashing algorithm is used by Django to encrypt passwords by default?

    <p>PBKDF2_Sha256</p> Signup and view all the answers

    What is necessary to enable Django's built-in authentication features?

    <p>Include 'django.contrib.auth' and 'django.contrib.contenttypes' in INSTALLED_APPS.</p> Signup and view all the answers

    Which of the following statements is true regarding user passwords in Django?

    <p>Passwords are encrypted, and superusers cannot see them.</p> Signup and view all the answers

    Which command is used to install the bcrypt hashing algorithm for Django?

    <p>pip install bcrypt</p> Signup and view all the answers

    What is the role of the contenttypes application in Django's auth system?

    <p>It tracks the models installed in the database.</p> Signup and view all the answers

    Which of the following would you use to configure password hashers in Django?

    <p>settings.py</p> Signup and view all the answers

    What is the most secure hashing algorithm among the options provided for Django?

    <p>argon2</p> Signup and view all the answers

    Study Notes

    Unit-II Introduction To Web Development And Django

    • Web applications provide services over the web (e.g., gmail.com, facebook.com)
    • Every web application consists of two main components: Front-End and Back-End
    • Front-End: Displays content users see on websites. Technologies include HTML, JavaScript, CSS, JQuery, and Bootstrap. JQuery and Bootstrap, advanced front-end technologies, are built using HTML, CSS, and JavaScript.
    • HTML: Mandatory for web development; represents the webpage structure.
    • CSS: Optional technology that adds styles (colors, fonts, borders) to HTML pages.
    • JavaScript: Adds interactivity and programming logic to HTML pages.
    • Static Responses: Do not vary with time or user (e.g., login page)
    • Dynamic Responses: Vary with time or user (e.g., inbox page)
    • Back-End: Determines content to display on the Front-End. Consists of Language (e.g., Java, Python), Framework (e.g., Django, Pyramid, Flask), and Database (e.g., SQLite, Oracle, MySQL). Python is the best choice for Backend language because it's simple and easy to learn. Django, a popular web application framework for Python, is a good choice because it's fast, secure, and scalable. Inbuilt SQLite database is preferable for Django projects.
    • Django: An open-source web framework written in Python, utilizing the Model-View-Template (MVT) architectural pattern. Maintained by the Django Software Foundation. Used in popular web applications (e.g., YouTube, Dropbox, Instagram).

    Top 5 Features of Django Framework

    • Fast: Designed for rapid development
    • Fully loaded: Includes features for common web development tasks (e.g., user authentication, content administration)
    • Security: Addresses common security vulnerabilities (e.g., SQL injection, cross-site scripting)
    • Scalability: Handles heavy traffic demands
    • Versatile: Applicable to various applications (e.g., content management systems, scientific computing platforms)

    How to Install Django

    • Ensure Python is installed on your system
    • Install Django using pip: pip install django
    • Verify Django version: py -m django --version

    Django Project vs Django Application

    • Django project: A collection of applications and configurations, forming a complete web application (e.g., Bank Project).
    • Django application: Responsible for performing specific tasks within the project (e.g., loan app, registration app).

    How to Create a Django Project

    • Use the django-admin command-line tool to create Django projects: django-admin startproject <project_name>
    • This creates the project structure with necessary files such as manage.py (used for managing the project) and folders, which include firstProject (holding project folder) containing supporting files such as settings.py (configuration file) , urls.py (for routing), and wsgi.py

    Unit-III Django Templates And Static Files

    • Django Templates: Separate HTML code from Python code for improved maintainability and reusability.
    • Python Stuff to develop template-based applications: Determining current file name, absolute path, and base directory path. To know absolute paths for templates: Determine BASE_DIR and use os.path.join to create a TEMPLATE_DIR.
    • Steps to develop Template Based Application:
      • Create Project and Application
      • Add application to settings.py file.
      • Create templates and subfolders (e.g., testApp) inside template folder in project
      • Add templates folder path in settings.py file
      • Create .html template files
    • Template Tags (Jinja2): Inject dynamic content into templates (e.g., current date, database data).

    Application to send Date and Time from views.py to Template File

    • Django templates allow dynamic content to be added to HTML templates from Python views.

    Application to display date, time and student information

    • Python views can fetch data from a database and pass it to a template to display date, time, and student information.
    • HTML templates receive this data as input (variables) and format it for display.

    Application to wish End User based on Time

    • Python view determines the current time of day (hour) and dynamically creates a greeting message.

    Working with Static Files

    • Separate static files (e.g., images, CSS) from templates. Use static and STATIC_URL variables in settings.py .

    How to include CSS Files

    • Create a folder called ’css’ within the static folder.
    • Use link tag to include the CSS file in template.

    Unit-IV Working with Django Forms

    • Django Forms: A way to easily handle user input in web applications (e.g., sign up, login).
    • Advantages over HTML Forms:
      • Easy form creation using Python code
      • HTML components (fields, e.g., text area, email field) are created very rapidly
      • Easy data validation
      • Easy processing of form data into required Python data structures (lists, sets)
    • How to Create Forms:
      • Create forms.py file in your application directory.
      • Define form classes (e.g., StudentForm) using Django form fields (e.g., forms.CharField, forms.IntegerField).
      • Inside your views.py file, use the form objects to render input forms within HTML templates.
    • Form Validation:
      • Forms can include input validation. A clean() method can be defined inside a Django form to explicitly validate form entries.
    • How to process input data within views.py
      • Access form data using .cleaned_data dictionary.
    • CSRF Token (Cross-Site Request Forgery): Ensures form submission is legitimate
    • Django's Inbuilt Validators: Help handle common validation checks (e.g., length, type).

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    Description

    Test your knowledge on essential web development concepts, including Django, Faker library, JavaScript, and CSS. This quiz covers various components of web applications, their purposes, and functions in the development process.

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