Which of the following statements about JavaScript DOM (Document Object Model) is correct?

• The DOM provides a hierarchical representation of the HTML document, allowing JavaScript to manipulate its structure, content, and style dynamically.

• The DOM only supports manipulation of text content within HTML elements; it cannot alter the structure or style of the document.

• JavaScript can directly modify the HTML file on the server-side using DOM without needing client-side interaction.

• DOM manipulation is limited to static web pages and cannot be used to create dynamic web applications.

Which of the following statements about AJAX (Asynchronous JavaScript and XML) is correct?

• AJAX is a programming language used for server-side scripting in web development.

• AJAX allows web pages to be refreshed or reloaded completely when new data is requested.

• AJAX requests are always synchronous, meaning the browser waits for the response before continuing to execute other scripts.

• AJAX enables asynchronous communication between a web browser and a server, allowing parts of a web page to be updated without a full page reload.

Which of the following statements about PHP sessions is MOST ACCURATE?

• Sessions are a client-side mechanism for storing user information using cookies.

• Sessions are a server-side mechanism for storing user information across multiple page requests.

• Sessions automatically expire after a set period of inactivity, requiring users to re-login.

• Sessions require complex database interaction to store user data.

The given JavaScript code snippet aims to add a click event listener to a button element with the ID "myButton". The listener should display an alert message when the button is clicked. Analyze the code and choose the best option:

• option 1

• option 2

• option 3

• All the above

Which of the following statements about Internet Protocol (IP) is correct?

• IP is responsible for ensuring secure communication between a web browser and a web server.

• IP addresses uniquely identify devices on a network and facilitate the routing of data packets between them.

• IP is primarily concerned with the presentation and formatting of web content for display in a browser.

• IP is a protocol used exclusively for sending emails over the internet.

Which of the following file formats are commonly supported for embedding videos in HTML web pages? (Select all that apply)

• MP3

• MP4

• WebM

• SVG

What is the main difference between inline, inline-block, and block elements in CSS?

• Inline elements flow within the content and cannot have set widths or heights, while inline-block elements behave like inline elements but can have set widths and heights. Block elements, on the other hand, start on a new line and stretch to fill the entire width of their container by default.

• Inline elements are displayed horizontally in the same line as other elements, inline-block elements start on a new line like block-level elements but allow other elements to sit alongside them, and block elements are displayed vertically, each on a new line.

• Inline elements can only contain text or other inline elements, inline-block elements can contain block-level elements as well, and block elements cannot contain other elements.

• Inline elements are used exclusively for text styling, inline-block elements are used for inline content that requires layout, and block elements are used for structural elements such as headings and paragraphs.

1. What is the difference between a float and a clear in CSS?

• A float property is used to align elements horizontally within their containing element, while clear property is used to specify whether an element should be positioned above, below, or next to floating elements.

• A float property is used to specify the background color of an element, while clear property is used to control the amount of space between the element's content and its border.

• A float property is used to set the text alignment within an element, while clear property is used to define the indentation of the element's content.

• A float property is used to control the size of an element, while clear property is used to determine the visibility of the element.

Which of the following type of variable takes precedence over other if names are same?

• global variable

• local variable

• Both of the above.

• None of the above.

A web development team is working on a project that involves creating multiple student details using HTML forms. They want to ensure consistency in the structure and elements used across all student information. Which technique best suits achieving this goal?

• Creating individual HTML forms for each student detail page to maintain consistency.

• Using JavaScript to dynamically generate HTML forms based on user input.

• Employing CSS frameworks to style HTML forms consistently across all pages.

• Implementing HTML form templates to define a standardized layout for collecting student information.