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The Internet and its Uses
- Internet
- World Wide Web (WWW) and routers.
- Intranet
Understand the structure of the Internet, the role of packet switching
Understand the difference between the Internet, the Web and an intranet.
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The Internet and its Uses
Uniform Resource Locator (URL)
- Describe the term URL in the context of Internet working.
Uniform Resource Identifier (URI)
- Describe the role of URIs in the context of Internet working.
Domain Names and IP Addresses
- Explain the terms domain name and IP address.
- Describe how domain names are organised.
- Know that an IP address is split into a network identifier part and a host identifier part.
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The Internet, Intranet and World Wide Web
Internet registries and Internet registrars
- Explain why such services are provided.
Internet Service Providers (ISP)
- Understand the role of an ISP.
Domain Name Server (DNS)
- Understand the purpose of Domain Name Server.
The Client–Server Model
- Be familiar with the client–server model.
Common Standard Protocols:
- TCP/IP - Describe the role of the four layers of the TCP/IP protocol stack, including sockets.
- FTP - FTP client software and an FTP server to transfer files using anonymous and non-anonymous access.
- HTTP - Web server to retrieve web pages in text form
- HTTPS
- TELNET - Telnet server for remote management of a server
- POP3, SMTP - E-mail server to read and send e-mail
- Well-known ports
- Client ports
Understand the role of a web browser in retrieving web pages and web page resources and rendering these accordingly.
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