Internet Essentials Quiz

Study Notes

Internet Essentials

Connection to the web requires two essentials: internet access and a web browser.

Internet Overview

Defined as a global system of interconnected networks utilizing standardized network protocols.
Consists of a vast network of networks allowing interconnectivity for computers and digital devices.
Intentionally designed to be decentralized, distributing control and authority across many independent entities.

Interconnected Networks

Acts as a platform for sharing diverse, current information from various sources globally.

Network Protocols

Communication and data exchange relies on Transmission Control Protocol (TCP) and Internet Protocol (IP).

Major Components of the Internet

Web Server

Functions as software using Hypertext Transfer Protocol (HTTP) to respond to client requests.
Moreover, functions as hardware housing web server software and website-related files, requiring internet connectivity.

Web Browser

Software application crucial for retrieving content from web servers and displaying it to users.

Types of Internet Service

Dial-up: Uses a modem to establish a connection between a computer and an ISP server.
Broadband: High-speed internet that surpasses traditional dial-up, transmitted via cable or telephone lines.
DSL (Digital Subscriber Line): Provides broadband via existing telephone lines.
Cable: Offers high-speed internet through cable modems.
Satellite: Internet access via satellites in Earth’s orbit.
ISDN (Integrated Service Digital Network): Transmits voice and data over digital lines in a circuit-switched telephone network.
Cellular: Wireless internet through cell phones with varying speeds from 3G to 5G.

Factors for Choosing an ISP

Availability of services in the area.
Internet speed options provided.
Cost of the service.

Client vs. Server Computers

Client Computer: Relies on internet connection to request web pages and online services from servers.
Server Computer: Stores and manages information on the web, using HyperText Transfer Protocol Daemon (HTTP Daemon).

URL (Uniform Resource Locator)

Standardized naming convention for addressing documents accessible over the Internet, acting as a webpage address.

HyperText Transfer Protocol (HTTP)

Incorporates methods for various website servicing tasks, including information retrieval and updates.
Connection between client and server is temporary, necessitating reestablishment for each data transfer.

Internet Tools

Electronic Email: Facilitates message distribution between computer users over a network.
Chat: Enables real-time communication and message exchange online.
File Transfer Protocol (FTP): Standard method for transferring files between client and server.
TELNET: Network protocol allowing remote login from one computer to another.
Wireless Application Protocol: Technical standard for mobile information access, with WAP browsers for mobile devices.
Internet Archived Listing (ARCHIE): Helps locate public domain programs across various sites.
Internet Gopher: A system to construct campus-wide information networks, facilitating access to distributed information.

Description

Test your knowledge on the fundamental components of the internet. This quiz covers topics such as network protocols, web servers, and the definition of the internet. Explore how these elements work together to facilitate global connectivity.