MTA HTML5 Application Development Fundamentals 3

Question 1

What does AJAX stand for and what problem does it solve?

Accepted Answer

Asynchronous JavaScript And XML; enables web pages to update content without full page reloads

Answer

Advanced Java Application Extensions; enables desktop apps in browsers

Answer

Automated JavaScript Ajax Xchange; handles form submissions

Answer

Asynchronous JSON And XML; manages database queries

Question 2

What is the purpose of JavaScript promises?

Accepted Answer

Handling asynchronous operations with a cleaner alternative to nested callbacks

Answer

Declaring variable types

Answer

Defining CSS animations

Answer

Creating HTML templates

Question 3

Which HTTP method is used to submit data to a server to create a new resource?

Accepted Answer

POST

Answer

GET

Answer

PUT

Answer

DELETE

Question 4

What is the purpose of the 'viewport' meta tag in HTML5 mobile development?

Accepted Answer

Configuring how the browser scales the page on mobile devices

Answer

Controlling the background color of the page

Answer

Loading mobile-specific stylesheets

Answer

Detecting the user's device type

Question 5

What does CSS specificity determine?

Accepted Answer

Which CSS rule applies when multiple rules target the same element

Answer

The order in which CSS files are loaded

Answer

How fast CSS animations run

Answer

The maximum number of CSS classes per element

Question 6

What is the role of a JavaScript framework like React or Angular in web application development?

Accepted Answer

Providing structured patterns and reusable components that simplify building complex web UIs

Answer

Replacing HTML entirely with script-only pages

Answer

Compiling JavaScript to machine code for performance

Answer

Managing server-side database queries