What happens if JavaScript code in the section of an HTML document is not properly handled?

Using the defer attribute with an external JavaScript file in the <body> section means that the script:

A). Loads and executes after HTML parsing.

B). Loads synchronously with HTML parsing.

C). Loads and executes before HTML parsing.

D). Loads but doesn't execute.

How can JavaScript be loaded asynchronously in the <body> section without blocking page rendering?

A). Using the defer attribute.

B). Using the async attribute.

C). Including scripts in the <head>.

D). Not possible in the <body>.

Variables declared in the <body> section of an HTML document have what scope by default?

A). Local to the script or function.

B). Global throughout the document.

C). Limited to the <body> section.

D). Not accessible in JavaScript.

When using an external JavaScript file in the <head> section with the defer attribute, when does it get executed?

A). After the HTML content is fully parsed.

B). Before the HTML content is parsed.

C). As soon as it starts loading.

D). After all other scripts in the <head>.

Placing JavaScript at the end of the <body> section is beneficial for:

A). Improving page load speed.

B). Blocking page rendering.

C). Increasing script complexity.

D). Hiding script functionalities.

What is the advantage of placing JavaScript at the end of the <body> section for non-critical scripts?

A). Faster initial page rendering.

B). Slower page load overall.

C). Better script execution order.

D). Increased script complexity.

What is the purpose of using the async attribute with an external JavaScript file in the <head> section?

A). To load and execute the script after HTML parsing.

B). To defer script execution.

C). To block rendering until script loads.

D). To ensure script execution order.

Variables declared in the <head> section of an HTML document are accessible:

A). Globally throughout the document.

B). Only within the <head> section.

C). Only after the page has fully loaded.

D). Nowhere in the document.

What is the purpose of using the async attribute with an external JavaScript file?

A). To load the script asynchronously.

B). To defer script execution.

C). To block rendering until script loads.

D). To ensure script execution order.

Using the defer attribute with an external script in the <head> section means that the script:

A). Loads and executes after HTML parsing.

B). Loads synchronously with HTML parsing.

C). Loads and executes before HTML parsing.

D). Loads but doesn't execute.