The Internet And The World Wide Web
Overview
People say 'the internet' and 'the web' as if they mean the same thing, but they do not. One is a global network of cables and devices; the other is the collection of web pages that ride on top of it. Knowing the difference, and the exact chain of events that turns a typed address into a displayed page, is at the heart of this topic.
In this lesson you will learn what a URL is, how HTTP and HTTPS differ, what a web browser does, the step-by-step journey from typing a URL to seeing a page (including the role of the DNS), and how session and persistent cookies remember things about you.
Objectives
- 1 Understand the difference between the internet and the world wide web
- 2 Understand what is meant by a uniform resource locator (URL)
- 3 Describe the purpose and operation of hypertext transfer protocol (HTTP) and hypertext transfer protocol secure (HTTPS)
- 4 Explain the purpose and functions of a web browser
- 5 Describe how web pages are located, retrieved and displayed on a device when a user enters a URL
- 6 Explain what is meant by cookies and how they are used, including session cookies and persistent cookies
Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on The Internet And The World Wide Web. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- What is the world wide web? A. the global network of cables and devices B. the collection of web pages and websites C. a web browser D. a protocol Answer: B
- Which protocol encrypts the data transferred between browser and server? A. HTTP B. HTTPS C. DNS D. URL Answer: B
- What does a DNS do? A. renders web pages B. maps a domain name to an IP address C. stores cookies D. encrypts data Answer: B
- A session cookie is deleted when: A. the user logs in B. the web browser is closed C. the page is reloaded D. it is sent to the server Answer: B
- Which is NOT one of the three main parts of a URL? A. protocol B. domain name C. IP address D. web page or file name Answer: C
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Recommended Books
Practice Mock Questions
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