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

Answer & Solution

Answer: Option A
Solution:
Variables declared in the <body> section have a local scope by default, meaning they are only accessible within the script block or function where they are defined and cannot be accessed from outside that scope.
Related Questions on Average

Placing JavaScript in the <head> section can impact page load times because:

A). It blocks rendering until executed.

B). It loads scripts asynchronously.

C). It reduces HTTP requests.

D). It has no impact on loading.

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 attribute can be used to make external JavaScript files load asynchronously in the <head> or <body> sections?

A). async

B). defer

C). sync

D). load

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?

A). To load the script asynchronously.

B). To defer script execution.

C). To block rendering until script loads.

D). To ensure script execution order.

Which attribute is used to make an external JavaScript file load and execute after HTML parsing but before the DOMContentLoaded event in the <head> section?

A). async

B). defer

C). sync

D). load

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.

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 is beneficial for:

A). Improving page load speed.

B). Blocking page rendering.

C). Increasing script complexity.

D). Hiding script functionalities.

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

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