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

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

A). It may block rendering and cause delays.

B). It automatically moves to the <body>.

C). It gets executed twice.

D). It has no impact on the page.

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.

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.

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 happens if JavaScript code in the <body> section of an HTML document is placed before critical content such as headings or main paragraphs?

A). It may cause FOUC (Flash of Unstyled Content).

B). It has no effect on page rendering.

C). It improves page load speed.

D). It slows down script execution.

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.

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>.

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

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.

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.

COMPANY
Products
 
OTHERS
Partner

Copyright © RVR Innovations LLP 2025 | All rights reserved - Mytat.co is the venture of RVR Innovations LLP