What happens if an external JavaScript file referenced in HTML is not found or fails to load?
A). The HTML file becomes invalid
B). The browser ignores the error
C). The web page displays an error message
D). The CSS styles are applied to the JavaScript file
How can you make an external JavaScript file load asynchronously in an HTML document?
A). <script async src='external.js'></script>
B). <script defer src='external.js'></script>
C). <script execute src='external.js'></script>
D). <script run src='external.js'></script>
What is the purpose of using external JavaScript references in web development?
A). Improving database performance
B). Enhancing security
C). Organizing code for reuse
D). Creating dynamic animations
How does referencing an external image in HTML differ from referencing an external JavaScript file?
A). It uses the <img> tag with the src attribute pointing to the image file's URL
B). It uses the <script> tag with the src attribute pointing to the JavaScript file's URL
C). It uses the <link> tag with the rel attribute set to 'image'
D). It uses the <style> tag with the src attribute pointing to the image file's URL
Which attribute is used in the <img> tag to specify the source (URL) of an external image file?
A). link
B). href
C). src
D). source
Which attribute is used in the <script> tag to defer the execution of an external JavaScript file until after the HTML content is fully loaded?
A). async
B). defer
C). src
D). execute
Which of the following is a disadvantage of using external JavaScript references in web development?
A). Increased server load
B). Reduced code modularity
C). Slower rendering of HTML content
D). Limited cross-browser compatibility
How do external JavaScript references contribute to improved website performance?
A). By reducing server load
B). By enhancing code organization
C). By speeding up rendering of HTML content
D). By decreasing page load times
What is the purpose of using external references for CSS stylesheets in web development?
A). To reduce code readability
B). To improve code organization
C). To complicate code maintenance
D). To increase page load times
Which of the following is a benefit of using external references for images rather than embedding images in HTML?
A). Improved SEO rankings
B). Reduced HTTP requests
C). Enhanced image quality
D). Faster rendering of images