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Questions and Answers
Which of the following correctly describes the internet?
The internet only sends web pages.
False
What is the role of DNS (Domain Name Server)?
To translate Internet addresses to their numeric values.
A ______ is a communication protocol that permits data transmission over the internet.
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Match the following internet connection types with their descriptions:
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Which of the following is an example of an Internet Browser?
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Each computer on the internet is identified by a unique numeric address.
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What does TCP/IP stand for?
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An organization founded by the US National Foundation of science is responsible for __________ unique domain names.
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Which of the following types of data packets are commonly carried over the internet?
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Study Notes
What is the Internet?
- The internet is a global network of computers that works similar to the postal system, enabling computers to send small packets of digital data to each other.
- It is a worldwide collection of interconnected networks with no central controlling computer.
- The internet relies on an organization founded by the US National Science Foundation to regulate and register unique domain names, preventing conflicts between internet addresses.
How the Internet Works
- Internet data packets carry different types of data, including web pages, email messages, and large files like digital videos, music files, or computer programs.
- The web provides an easy-to-use interface for numerous applications, including email, file transfer, Usenet newsgroups, and Internet Relay Chat (IRC) messages.
Internet Connection
- Internet connections can be established through various means, including:
- Connection Information Service Gateway
- Internet Service Providers (ISPs)
- Dial-up connection (using a modem and telephone line, with a slow speed of approximately 56Kbps)
- Network connection via LAN (e.g., ADSL)
Internet Protocol (IP)
- A protocol is a set of rules and signals used when computers on networks communicate with each other.
- Example: TCP/IP (Transmission Control Protocol/Internet Protocol)
TCP/IP Protocol
- TCP/IP is a communication protocol that enables data transmission over the internet.
- The software for this protocol comes with the operating system (e.g., Windows).
- Each message sent is divided into packets, which contain the source address, destination address, and data.
Internet Browser
- An internet browser is an application software that presents a Graphical User Interface (GUI) for searching, viewing, and managing information over any network.
- Examples: Internet Explorer and Netscape Communicator.
Domain Name
- Each computer on the internet is identified by its unique numeric address, consisting of four numbers separated by dots with no spaces.
- Alphanumeric addresses (e.g., www.aaup.edu) are used to make IP addresses more memorable.
- A Domain Name Server (DNS) is used to translate internet addresses to their numeric values.
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Description
Learn about the basics of the internet, including how it works, its global network, and its decentralized structure.
