Cs521 Quiz 2 Fall 2024

Here are all the MCQs and their correct answers:

1. What does the jQuery "fadeOut" method do?

   • Answer: It makes an HTML element invisible with a fading effect.

2. What is the file extension for a PHP file?

   • Answer: .php

3. What is the purpose of the "catch" block in a try-catch statement?

   • Answer: It handles the thrown exception by providing an alternative code path.

4. What is the scope of a variable declared inside a function in JavaScript?

   • Answer: Local scope

5. What is jQuery?

   • Answer: A JavaScript library for creating dynamic web pages and simplifying web development.

6. Which event type is triggered when a user clicks on an HTML element?

   • Answer: click

7. What does the Document Object Model (DOM) represent in JavaScript?

   • Answer: The structure of a web page as a hierarchical tree of objects.

8. What is the correct way to write an if statement in JavaScript?

   • Answer: if (x == 10) { }

9. What is a server-side technology used for web development?

   • Answer: PHP

10. Which loop in JavaScript is suitable for executing a block of code a specific number of times?

    • Answer: for loop