Answer & Solution
<head>.
<head> section?
<head>.
When JavaScript is placed in the <head> section of an HTML document, it can:
A). Execute before page rendering.
B). Execute after page rendering.
C). Block rendering until execution.
D). None of the above.
Which attribute should be used for loading external JavaScript files without blocking rendering in the <head> or <body> sections?
A). async
B). defer
C). sync
D). load
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>.
Which scenario is suitable for placing JavaScript in the <head> section of an HTML document?
A). Initializing variables or configurations.
B). Dynamic content manipulation.
C). User interaction scripts.
D). External script loading.
Placing JavaScript at the end of the <body> section of an HTML document can result in:
A). Faster initial page rendering.
B). Slower overall page loading.
C). No impact on page performance.
D). Delayed execution of JavaScript.
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.
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.
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.
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.