Web development 1

1. When you type a URL in a browser and hit Enter, what is the first thing the browser does?

• Makes a DNS request to resolve the domain

• 1. Sends an HTTP request to the server

• 1. Fetches the JavaScript files from the server

• Starts rendering the page

1. What happens if you use an invalid HTML tag, like <txt>?

• 1. The browser throws an error

• 1. The tag is ignored, and the rest of the page renders normally

• 1. The browser displays the tag as text

• The browser automatically fixes the tag

1. Which CSS rule has the highest precedence in this list?

• 1. Inline styles

• 1. Class selectors

• 1. ID selectors

• External stylesheets

1. What will be the output of the following JavaScript code?
   console.log(2 + 2 + '4')

• 1. 8

• 1. 44

• 1. 6

• Error

1. What HTML element is used to define a navigation menu?

• 1. <nav>

• 1. <menu>

• 1. <ul>

• <section>

1. What will happen if you try to print a variable that has not been declared in JavaScript?

• 1. The code will throw a reference error

• 1. The value will be undefined

• 1. The browser will automatically declare the variable

• The value will be null

1. If an element has a width of 200px and a padding of 20px, how wide will the element be?

• 1. 200px

• 1. 240px

• 1. 180px

• 220px

1. What will happen if you execute setTimeout(() => console.log('Hello'), 0) and then run console.log('World') immediately after it?

• 1. "Hello" will print first

• 1. "World" will print first

• 1. Both will print simultaneously

• "Hello" will not print at all

1. Which of the following best describes the role of a web developer?

• 1. Creates the visual design of the website

• 1. Writes the code to build the website

• 1. Creates content for the website

• Focuses on SEO strategies for the website

1. What will this loop print?
   for (let i = 0; i < 3; i++) { console.log(i); }

• 1. 1 2 3

• 1. 0 1 2

• • 1 2

• 0 1 2 3