(MCQs for web) MCQ on Front-end Development

You have used dispaly: none in your stylesheet. Which users will be able to see or hear this content?

Which attribute must have a unique value each time it is used in an HTML document?

How can you rewrite this function using arrow function syntax?

How many columns will there be, given this code?

.container {
  width: 600px;
  column-width: 200px;
  column-gap: 50px;
}

Variables declared with the let keyword have what type of scope?

The browser finds some CSS that it does not understand. What is likely happen?

You find this code in a stylesheet. What is it being used for?

.cf::after {
  content: '';
  display: block;
  clear: both;
}

Which line of code, if applied to all flex items in a flex container, would cause each flex item to take up an equal share of the total width of the container? For example, if there are four items, they would get 25% of each/

A video on your webpage does not display and the console shows an error about mixed content. What is happening?

what does the CSS selector a[href$="org"] select?

You have placed an image in a directory named images and want to reference it from a page located in the root of your site. Which choice would correctly display the image on the page?

Which part of the URL https://app.uniswap.org/pool specifies the domain name

What will be the value of selected?

let pocket = ['turnip', 'stone', 'log', 'apple'];
let selected = pocket[1];

When might an empty alt attribute be the correct value?

How does the rem unit represent a font size?

Which HTML element represents either a scalar value within a known range a fractional value?

Which HTML element is not considered a landmark element?

Which description correctly describes the initial values of flex items if the only thing you have done is apply display: flex to their parent?

Which HTML will result in text being highlighted in yellow?

.highlight {
  background-color: yellow;
}

What is Webpack primarily used for?

What is the correct way to initialize an array of galaxies in JavaScript?

Which choice is not a render blocking resource?

Which choice is a correct use of the parseInt() function in Javascript that parses a string and return an integer?

You have a set of images that are slightly different sizes and aspect ratios. You don't mind if you crop off some of the image, but you want each image to completely fill a square box without being distorted. Which property and value would achieve this?

Which choice is not part of CSS box model

What is the <label> element used for?

In the following code, the variable fruit has been assigned a value of apple. How would you change the value to plum?

let fruit = 'apple';

Lighthouse is a tool for auditing your website. Which choice is not a category of report offered by Lighthouse?

What does the === comparison operator do?

In normal flow, some elements display as block elements default and others inline. which choice contains only block-level by default elements?**

A webpage has rel="preconnect" added to a link resource. What will this do?

<link rel="preconnect" href="https://example.com">

Which choice is not a value of the type attribute of the <input> element?

In the context of this code, how would you describe user?

const user = {
  given_name: 'Joe',
  family_name: 'Bloggs',
  age: 40,
}

In this code, what is the term for the h1?

h1 {
  color: red;
  font-size: 5em;
}

What will this loop print?

let max = 3;
     for (i = 0; i > max; i++) {
       document.write("skrt ");
     }

Why would you surround a piece of text with <h1></h1> tags?

Which statement is true when an HTML tag has been deprecated?

Which CSS property will not trigger layout recalculation?