What is the purpose of using external JavaScript references in web development?

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

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

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>

Which attribute is used in the <link> tag to specify the relationship between an HTML file and an external CSS file?

A). style

B). href

C). rel

D). type

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 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

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 can you specify the type of an external CSS file in the <link> tag?

A). <link type='text/css' href='styles.css'>

B). <link href='styles.css'>

C). <link rel='stylesheet' href='styles.css'>

D). <link src='styles.css'>

Which of the following is an advantage of using external CSS stylesheets in web development?

A). Reduced server load

B). Improved code organization

C). Faster page loading times

D). Increased security

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