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The ultimate guide to web development interviews. Developed by FAANG engineers, practice with real-world interview questions covering network security, system design, SEO, APIs, and more.

oct6.tar.gz

server

JavaScript

Grunt

webpack

webpack-loaders

Grunt-eslint

ProgressiveRendering

webpack-code-splitting

This course compiles a comprehensive range of questions that are most likely to be asked during the frontend interview. Where many interview prep courses focus on data structures and algorithms, this course focuses on a variety of topics from network security to system design.

In this course, you will solve interview questions that cover general aspects of web development. You’ll start by going over network security and optimization techniques for load balancing and browser rendering. After that, you’ll move on to interview questions around SEO, APIs, and system design.

Overall, these are questions that are often overlooked, but they can really make you stand out from your peers. By the end of this course, you will have the confidence and ability to go in and ace that interview.

Web Development Interview Handbook

To allow the browser to style the HTML as it is rendered.

It stops JavaScript from loading, which is necessary.


Why is it recommended to put CSS links in `<head></head>` in HTML?

Why is it recommended to put CSS links in <code>&lt;head&gt;&lt;/head&gt;</code> in HTML?

Placing them anywhere else causes a server error.

That allows for content to load afterward, which speeds the website up.


That allows for content to load first, which speeds the website up.


Why are JavaScript links placed just before the closing `</body>` tag in HTML?

Why are JavaScript links placed just before the closing <code>&lt;/body&gt;</code> tag in HTML?

It loads all the assets of the website asynchronously, which speeds the whole thing up.


It allows for the script to be loaded asynchronously, which speeds the website up.


It makes the HTML content render asynchronously off the main thread.

What does the `async` attribute do in the `<script>` tag?

What does the <code>async</code> attribute do in the <code>&lt;script&gt;</code> tag?

Search engines will be able to crawl the website, leading to better SEO.


The server will receive frequent requests.

Which of the following is an advantage of server-side rendering?


Which of the following is an advantage of server-side rendering?

The JavaScript must be loaded asynchronously in client-side rendering.

The JavaScript must be loaded asynchronously in client-side rendering.

Suppose you wish to visit a website, and so you enter its URL into a browser bar. Almost immediately, your Internet connection gets disconnected. You check to see what you received and all you got was an HTML file, like so:

```HTML
<!DOCTYPE html>
<html>

<head>
 <meta charset="utf-8">
 <title>Very Busy E-commerce Site</title>
 <meta name="Educative" content="">
 <meta name="An e-commerce site full of content" content="">

 <link href="css/style.css" rel="stylesheet">
</head>

<body>

 Hello, world!

 <script src="js/script.js"></script>
</body>

</html>
```

Which of the following applies?

Suppose you wish to visit a website, and so you enter its URL into a browser bar. Almost immediately, your Internet connection gets disconnected. You check to see what you received and all you got was an HTML file, like so:
<pre><code class="language-HTML">&lt;!DOCTYPE html&gt;
&lt;html&gt;

&lt;head&gt;
 &lt;meta charset=&quot;utf-8&quot;&gt;
 &lt;title&gt;Very Busy E-commerce Site&lt;/title&gt;
 &lt;meta name=&quot;Educative&quot; content=&quot;&quot;&gt;
 &lt;meta name=&quot;An e-commerce site full of content&quot; content=&quot;&quot;&gt;

 &lt;link href=&quot;css/style.css&quot; rel=&quot;stylesheet&quot;&gt;
&lt;/head&gt;

&lt;body&gt;

 &lt;p&gt;Hello, world!&lt;/p&gt;

 &lt;script src=&quot;js/script.js&quot;&gt;&lt;/script&gt;
&lt;/body&gt;

&lt;/html&gt;
</code></pre>
Which of the following applies?

Have a look at the following gif of this page loading. What sort of rendering does it most likely use?

<center>
<img src="/api/collection/10370001/6006542571667456/page/4763160979439616/image/6229795321937920" loading="lazy" style="max-width:auto;max-height:300px;width: auto;height: auto;">
</center>

Have a look at the following gif of this page loading. What sort of rendering does it most likely use?
<center>
<img src="/api/collection/10370001/6006542571667456/page/4763160979439616/image/6229795321937920" loading="lazy" style="max-width:auto;max-height:300px;width: auto;height: auto;">
</center>

What does lazy-loading an image do?

Progressive rendering may involve which of the following:

Progressive rendering may involve which of the following:

Rendering and loading have been the focus of what you learned these past few lessons. Let's test those concepts now!

Introduction

Network

Security

Optimizing Loading Performance

Optimizing Browser Rendering Performance

Search Engine Optimization

System Design

APIs

Testing

Version Control

Task Runners & Bundlers

Conclusion

Rendering & Loading: Quiz