Can an external JavaScript file contain HTML?

What is the difference between the defer and async attributes in the <container><script></container> tag?

A). defer delays execution until after the HTML document is fully parsed, while async executes as soon as it is downloaded

B). defer executes the script immediately, while async delays execution until after HTML parsing is complete

C). defer and async both delay script execution until after HTML parsing is complete

D). There is no difference between defer and async attributes

What happens if the external JavaScript file is not found?

A). The browser will ignore the script

B). The browser will show a 404 error

C). The script will not run

D). All of the above

Which HTML tag is used to link an external JavaScript file?

A). <container><script></container>

B). <container><link></container>

C). <container><style></container>

D). <container><js></container>

How can you include multiple external JavaScript files in a web page?

A). Use multiple <container><script></container> tags

B). Separate file names with commas

C). Separate file names with semicolons

D). Use a single <container><script></container> tag with multiple src attributes

What does the async attribute do when used in a <container><script></container> tag?

A). Executes the script immediately

B). Delays script execution until HTML parsing is complete

C). Executes the script asynchronously

D). Executes the script before the HTML parsing begins

What is the correct syntax for referring to an external script called 'app.js'?

A). <container><script src='app.js'></container>

B). <container><script href='app.js'></container>

C). <container><script link='app.js'></container>

D). <container><script file='app.js'></container>

Can an external JavaScript file be cached by the browser?

A). Yes

B). No

C). Only if specified in the HTML

D). Only if it is under a certain size

What attribute is used to specify the path of an external JavaScript file?

A). href

B). src

C). path

D). file

What is the advantage of using external JavaScript files?

A). Improves code readability

B). Allows reuse of code

C). Improves page load times due to caching

D). All of the above

What is the purpose of using external JavaScript files?

A). To keep HTML and JavaScript code separate

B). To reuse the JavaScript code on multiple pages

C). To improve the maintainability of the code

D). All of the above