Module 2: IT and the Internet

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In this post, I provide complete, accurate, and detailed explanations for the answers to Module 2: IT and the Internet of Course 1: Introduction to Information Technology and AWS Cloud

Whether you’re preparing for quizzes or brushing up on your knowledge, these insights will help you master the concepts effectively. Let’s dive into the correct answers and detailed explanations for each question!

Module 2 Assessment

Graded Assignment

1. Which option accurately describes a common use of JavaScript in web development?

  • JavaScript is mainly used for defining the visual layout and styling of web pages.
  • JavaScript is commonly used for creating interactive and dynamic elements on webpages. ✅
  • JavaScript is exclusively used for server administration tasks, such as managing network security and user access control.
  • JavaScript is commonly used for the creation and management of web servers.

Explanation:
JavaScript is a programming language primarily used in web development to add interactivity and dynamic behavior to websites. This includes features like:

  • Dropdown menus
  • Animations
  • Form validations
  • Real-time content updates (like chat messages or notifications)

It runs in the browser and works together with HTML (structure) and CSS (styling) to create modern, responsive websites.

Website Rendering

Practice Assignment

2. Using the following diagram, number each step of the website rendering process in the correct order.

Note: To view as a high-resolution image, download the diagram to your desktop or right-click and open in a new tab.

Explanation:
Step 1: Browser sends a request to the web server

  • This happens when you type in a URL or click a link.

Step 2: Server processes the request and sends back HTML

  • The server responds with the web page’s HTML code.

Step 3: Browser parses HTML and requests additional resources (CSS, JS, images)

  • The browser reads the HTML and notices it needs extra files like stylesheets, scripts, etc.

Step 4: Browser renders the content on the screen

  • Once everything is downloaded and parsed, the browser draws the webpage on your screen.

Step 5: JavaScript is executed to enable interactivity

  • After rendering, JavaScript runs to make the page interactive (e.g., button clicks, dynamic content).

3. Are you finished with the exercise?


Number each step correctly:

  • Step 1: Browser
    You enter the domain name in the browser.
  • Step 2: Domain Name System server
    The DNS server translates the domain to an IP address.
  • Step 3: Load balancer
    Routes the request to the appropriate backend server.
  • Step 4: Web server
    The server responds with the webpage assets like HTML, CSS, JS.
  • Step 5: Render
    The browser renders the webpage.

Related contents:

Module 1: Foundational IT Knowledge
Module 3: The AWS Cloud

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