Q121
Q121 How do you apply a custom shadow using Bootstrap's utilities for a card component?
Use .shadow-custom with appropriate CSS values
Modify the .card class in CSS
Use a .card-shadow utility with custom properties
Apply CSS directly to the card element
Q122
Q122 What is the correct method to create a responsive typography scale in Bootstrap using SCSS?
Use the $font-sizes map and set values across breakpoints
Use media queries directly in the SCSS file
Override Bootstrap constants
Implement CSS rules in the HTML
Q123
Q123 When Bootstrap's CSS doesn't apply as expected,
what is a common factor to check regarding the stylesheet's integration?
The order of CSS file links
The version of Bootstrap used
The specificity of custom CSS rules
Both the order of CSS file links and the specificity of custom CSS rules
Q124
Q124 If changes to Bootstrap's SCSS variables do not reflect in the final CSS,
what could be the issue?
Incorrect variable names
The SCSS file is not properly linked
Compilation errors
Both incorrect variable names and compilation errors
Q125
Q125 How does Bootstrap ensure that its components are accessible to screen readers?
By using ARIA roles and properties
By limiting color usage
By using only keyboard navigation
By implementing custom JavaScript solutions
Q126
Q126 What is the significance of using semantic HTML in Bootstrap for accessibility?
It helps in SEO
It simplifies page styling
It improves user navigation and screen reader effectiveness
It reduces page load times
Q127
Q127 What should be considered when implementing custom interactive components in Bootstrap to maintain accessibility?
The color contrast ratios
The use of JavaScript for interaction
The keyboard accessibility and focus management
The use of CSS animations
Q128
Q128 What type of testing is essential to ensure a Bootstrap site's responsiveness across different devices?
Unit testing
Integration testing
Responsive testing
Load testing
Q129
Q129 How can automated testing tools be utilized for Bootstrap components?
To check syntax errors
To ensure cross-browser compatibility
To validate HTML only
To measure performance metrics
Q130
Q130 What is the importance of accessibility testing in the context of Bootstrap websites?
To comply with legal standards
To increase site traffic
To reduce bandwidth usage
To enhance security
Q131
Q131 In the development of Bootstrap sites, why is it critical to perform regression testing after each update?
To check new features
To ensure previous functionalities are not broken
To speed up the website
To decrease the website's downtime
Q132
Q132 What is a practical approach for writing a test case to check if a Bootstrap modal opens correctly when a button is clicked?
Using JavaScript alerts
Simulating the button click and checking the modal state
Logging the button's onclick event
Checking the button’s href attribute
Q133
Q133 How would you set up a unit test to verify that a Bootstrap dropdown functions as expected under different user roles?
By creating separate tests for each role
By changing user roles dynamically in one test
By only testing the default user role
By using a test database
Q134
Q134 What is a common issue to check if a Bootstrap tooltip does not show during testing?
JavaScript conflicts
Incorrect data attributes
CSS overrides
Both JavaScript conflicts and incorrect data attributes
Q135
Q135 When a Bootstrap element behaves unexpectedly in a test environment but not in production,
what should be investigated?
Differences in data handling
Differences in environment configurations
Server response times
Browser type used for testing
Q136
Q136 How do you diagnose issues in a Bootstrap site where specific CSS styles fail to apply only in automated test scenarios?
Check the loading order of stylesheets
Check for missing style declarations in the CSS file
Simulate the scenario manually
Check the automated test script for errors
Q137
Q137 How does minimizing Bootstrap’s CSS and JavaScript files impact performance?
Increases load times
Decreases responsiveness
Decreases load times
None of these
Q138
Q138 What role does the use of content delivery networks (CDNs) play in Bootstrap performance optimization?
Increases security risks
Decreases site reliability
Improves load times globally
Reduces functionality
Q139
Q139 In what way can custom builds of Bootstrap enhance site performance?
By adding more features
By including developer tools
By reducing file sizes with only needed components
By increasing compatibility
Q140
Q140 What is an effective method to defer loading of Bootstrap JavaScript files until after the main content?
Use the async attribute
Use the defer attribute
Place scripts at the end of the body
Both use the defer attribute and place scripts at the end of the body
Q141
Q141 How can developers ensure that Bootstrap’s JavaScript doesn’t affect the critical rendering path of a webpage?
By inlining all JavaScript
By using asynchronous loading
By removing all JavaScript
By compressing JavaScript files
Q142
Q142 If a Bootstrap page is experiencing slow load times despite optimization efforts,
what should be investigated first?
Server response times
Network conditions
Number of HTTP requests
All of the above
Q143
Q143 How can you identify and resolve performance bottlenecks related to Bootstrap’s CSS in a web application?
Using the browser's developer tools to simulate slow networks
Using a CSS profiler
Both using a CSS profiler and the browser’s developer tools
Reviewing server logs
Q144
Q144 What is a key consideration when planning to migrate to a newer version of Bootstrap?
Code compatibility
Color schemes
Page load speed
Aesthetic trends
Q145
Q145 How does updating to the latest version of Bootstrap benefit a project in terms of security?
Provides newer features
Enhances UI components
Fixes known security vulnerabilities
Improves performance
Q146
Q146 What is the impact of Bootstrap version migration on third-party plugins and integrations?
They will automatically update
May need to be replaced or updated
Will become faster
Require less configuration
Q147
Q147 Which tool can be useful for identifying deprecated features when migrating to a newer version of Bootstrap?
Bootstrap migration assistant
Code linter
Version control system
Dependency manager
Q148
Q148 How do you ensure custom modifications to Bootstrap's SCSS files are maintained during an upgrade?
Reapply changes manually after upgrade
Use a version control system to merge changes
Store customizations in a separate file
All of the above
Q149
Q149 After migrating to a new version of Bootstrap,
what is a common issue that might appear with responsive layouts?
Increased loading times
Broken grid layouts
Incorrect media query activation
Unresponsive buttons
Q150
Q150 What should be checked if custom JavaScript functionality breaks following a Bootstrap version upgrade?
Syntax errors in the script
Incompatibilities with new Bootstrap JavaScript features
Server-side issues
Browser compatibility
