What considerations should be taken into account when using a preprocessor like SASS to override Bootstrap CSS?

  • Maintainability of code
  • Specificity of selectors
  • Nesting depth of selectors
  • Order of CSS files
When using a preprocessor like SASS to override Bootstrap CSS, deeply nested selectors can impact the specificity and make it harder to maintain the code. High specificity can lead to unintended consequences when applying styles, so understanding the nesting depth is crucial.

Q2. How would you create a Bootstrap dashboard that dynamically displays user data?

  • Use Bootstrap's Grid System for layout
  • Fetch and render data using JavaScript and AJAX
  • Utilize Bootstrap's Navbar component
  • Implement a server-side rendering approach
To create a Bootstrap dashboard that dynamically displays user data, utilizing Bootstrap's Grid System for layout is crucial. This system helps in organizing and structuring the dashboard's components effectively. Fetching and rendering data through JavaScript and AJAX enable dynamic updates without reloading the entire page.

Using Bootstrap's built-in classes instead of ___ styles helps maintain consistency.

  • Inline
  • External
  • Internal
  • Embedded
When using Bootstrap, opting for its built-in classes instead of external styles ensures consistency in design. External styles might conflict with Bootstrap's predefined styles, leading to inconsistencies.

Bootstrap's scrollspy functionality is initialized with the JavaScript method '___()'.

  • activate()
  • initialize()
  • spy()
  • scroll()
The correct method to initialize Bootstrap's scrollspy functionality is spy(). This function is used to automatically update links in the navigation list based on scroll position.

The Bootstrap CSS class '___' works in tandem with Bootstrap JS to create a responsive navbar.

  • navbar-toggle
  • navbar-brand
  • navbar-collapse
  • navbar-responsive
The 'navbar-collapse' class in Bootstrap CSS works in conjunction with Bootstrap JS to enable a responsive navbar. It is responsible for handling the collapsing behavior on smaller screens.

The Bootstrap alert component can be closed using the '___()' JavaScript method.

  • closeAlert()
  • dismissAlert()
  • alertClose()
  • close()
The correct method to close a Bootstrap alert programmatically is close(). This JavaScript method is used to dismiss or close an alert, making it disappear from the user interface. It is associated with the Bootstrap Alert component.

Q1. Describe how you would optimize a website that has a high load time due to large image files.

  • Reduce Image Size
  • Use Lazy Loading
  • Implement Image Sprites
  • Utilize Content Delivery Network (CDN)
To optimize a website with large image files, using a CDN helps distribute content globally, reducing latency and improving load times. CDNs store copies of static assets, like images, on servers closer to users. This ensures faster delivery and improved overall performance.

In Bootstrap, what is the significance of using semantic HTML elements for accessibility?

  • Improved SEO
  • Enhances design aesthetics
  • Ensures proper document structure
  • Reduces file size
Using semantic HTML elements in Bootstrap is crucial for accessibility as it ensures a proper document structure. Screen readers rely on semantic markup to interpret and convey information accurately to users with disabilities.

How would you utilize Bootstrap variables to ensure accessibility in terms of color contrast and font sizes?

  • Adjusting $font-size-base and $line-height-base for better readability
  • Modifying $body-bg and $text-color for improved contrast
  • Tweaking $border-color and $box-shadow for a cleaner design
  • Changing $link-color and $component-active-bg for enhanced interactivity
To ensure accessibility, focus on variables like $body-bg and $text-color to improve color contrast. Additionally, adjusting font-related variables such as $font-size-base and $line-height-base helps enhance readability for users with different needs.

The 'table-___' class in Bootstrap is used to create a more condensed table.

  • compact
  • condensed
  • tight
  • concise
The 'table-condensed' class in Bootstrap is used to create a more condensed table by reducing the cell padding, making the table more compact and suitable for displaying information in a smaller space.