The Internet & the World Wide Web (Cambridge (CIE) O Level Computer Science)

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  • What is the Internet?

    The Internet is a global network of networks.

  • Define the term World Wide Web.

    The World Wide Web is a collection of websites and web pages that are accessed using the internet.

  • Who created the World Wide Web?

    Tim Berners-Lee created the World Wide Web in 1989.

  • What does WAN stand for?

    WAN stands for Wide Area Network.

  • True or False?

    The Internet is the most well-known Wide Area Network (WAN)

    True.

    The Internet is the most well-known Wide Area Network (WAN)

  • What is the purpose of the World Wide Web?

    The purpose of the World Wide Web is to share and access information on a global scale.

  • Define the term web server.

    A web server is a computer that stores and delivers web content.

  • What tool is used to access web pages?

    Web pages are accessed using a web browser.

  • True or False?

    The Internet and the World Wide Web are the same thing.

    False.

    The Internet is the infrastructure that provides connectivity to the World Wide Web

  • What does the World Wide Web consist of?

    The World Wide Web consists of interconnected documents and multimedia files stored on web servers around the world.

  • What does HTTP stand for?

    HTTP stands for Hypertext Transfer Protocol.

  • Define the term protocol.

    A protocol is a set of rules governing communication between devices on a network.

  • What is the main difference between HTTP and HTTPS?

    HTTPS works in the same way as HTTP but with an added layer of security.

  • True or False?

    HTTPS encrypts all data sent and received

    True.

    HTTPS encrypts all data sent and received

  • What type of information is typically protected by HTTPS?

    HTTPS is used to protect sensitive information such as passwords, financial information, and personal data.

  • Define the term encryption.

    Encryption is the process of encoding information to protect it from unauthorised access.

  • What is the primary purpose of HTTP?

    The primary purpose of HTTP is to allow communication between clients and servers for website viewing.

  • What are two examples of data sent to servers using HTTP?

    Two examples of data sent to servers using HTTP are submitting a form and uploading a file.

  • What is a web browser?

    A web browser is a piece of software used to access and display information on the internet.

  • What is the primary purpose of a web browser?

    The primary purpose of a web browser is to render hypertext markup language (HTML) and display web pages.

  • Define the term render.

    To render is to interpret code and translate it into a visual display.

  • True or False?

    Web browsers can only display one web page at a time.

    False.

    Web browsers can display multiple web pages at once using tabs.

  • What is the function of bookmarks in a web browser?

    Bookmarks allow users to save links to frequently visited websites and access them easily.

  • What is the purpose of the address bar in a web browser?

    The address bar is a place for users to type in the URL of a web page to visit.

  • Define the term URL.

    A URL (Uniform Resource Locator) is a unique identifier for a web page, also known as the website address.

  • What is the function of navigation tools in a web browser?

    Navigation tools, such as back/forward buttons and home button, help users move between pages.

  • True or False?

    Web browsers store user history.

    True.

    Web browsers store user history to allow users to quickly revisit recently viewed web pages.

  • What is a web server?

    A web server is a remote computer that stores the files needed to display a web page on the Internet.

  • What are the three typical parts of a URL?

    The three typical parts of a URL are protocol, domain name, and web page/file name.

  • What is DNS?

    DNS (Domain Name System) is a directory that translates human-readable domain names to numeric IP addresses.

  • True or False?

    HTML is the foundational language used to structure content on the web.

    True.

    HTML is the foundational language used to structure content on the web.

  • Define the term HTML element.

    An HTML element is a component of HTML, often referred to as a "tag," used to structure and format a webpage.

  • What is the root element of an HTML page?

    The root element of an HTML page is the <html>tag.

  • True or False?

    All HTML tags must be closed.

    False.

    Most HTML tags are opened and closed, but some tags are only opened (e.g., <img> and <link>).

  • Name three examples of HTML elements used in the content layer of a web page.

    Three examples of HTML elements used in the content layer of a web page are headings (<h1>, <h2>), paragraphs (<p>), and links (<a>).

  • What is a cookie?

    A cookie is a tiny data file stored on a computer by browser software that holds information relating to your browsing activity.

  • Name three types of information typically contained in a cookie.

    Three types of information typically contained in a cookie are browsing history, login information, and user preferences.

  • What are the two types of cookies?

    The two types of cookies are session cookies and persistent cookies.

  • Define the term session cookie.

    A session cookie is created and replaced every time a user visits a website.

  • Define the term persistent cookie.

    A persistent cookie is created and saved the first time a user visits a website and retained until it expires.

  • What is the Privacy and Electronic Communications Regulations (2003)?

    The Privacy and Electronic Communications Regulations (2003) is a law that governs the use of cookies.

  • True or False?

    Websites must obtain user consent to store cookies.

    True.

    Websites must obtain user consent to store cookies.

  • What are the three requirements for websites storing cookies under the Privacy and Electronic Communications Regulations (2003)?

    The three requirements are:

    1. Tell users the cookies are there

    2. Explain what the cookies are doing

    3. Obtain users' consent to store the cookie.

  • True or False?

    Cookies can store user preferences such as language and font size.

    True.

    Cookies can store user preferences such as language and font size.

  • What is the main difference between session and persistent cookies?

    The main difference is that session cookies are temporary and replaced each visit, while persistent cookies are saved and retained across multiple visits.