Networks

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Networksa group or system of interconnected people or things.[1]

A computer networka group or system of interconnected people or things. or data networka group or system of interconnected people or things. is a telecommunications networka group or system of interconnected people or things. which allows computers to exchange data. In computer networksa group or system of interconnected people or things., networked computing devices exchange data with each other using a data link. The connections between nodes are established using either cable media or wireless media. The best-known computer networka group or system of interconnected people or things. is the Internet.

Networka group or system of interconnected people or things. computer devices that originate, route and terminate the data are called network nodes. Nodes can include hosts such as personal computers, phones, servers as well as networking hardware. Two such devices can be said to be networked together when one device is able to exchange information with the other device, whether or not they have a direct connection to each other.

Computer networksa group or system of interconnected people or things. differ in the transmission medium used to carry their signals, the communications protocols to organize networka group or system of interconnected people or things. traffic, the networka group or system of interconnected people or things.'s size, topology and organizational intent.

Computer networksa group or system of interconnected people or things. support an enormous numberA unit of abstract mathematical system subject to the laws of arithmetic. of applications such as access to the World Wide Web, video, digital audio, shared use of application and storage servers, printers, and fax machines, and use of email and instant messaging applications as well as many others. In most cases, application-specific communications protocols are layered (i.e. carried as payload) over other more general communications protocols.[2]

Introducing

Below is a series of videos I have found to be excellent resources. It make take a moment to load. The full url is here: https://www.youtube.com/embed/lzEBr3W93_I

Big ideas in networking


Standards

There are certain standards you must know in order to complete IB diploma. These are not fully complete, in my opinion, but they are here for your reference:


  • IdentifyProvide an answer from a number of possibilities. Recognize and state briefly a distinguishing fact or feature. different types of networksa group or system of interconnected people or things..
  • OutlineGive a brief account. the importance of standards in the construction of networksa group or system of interconnected people or things..
  • DescribeGive a detailed account or picture of a situation, event, pattern or process. how communication over networksa group or system of interconnected people or things. is broken down into different layers.
  • IdentifyProvide an answer from a number of possibilities. Recognize and state briefly a distinguishing fact or feature. the technologies required to provide a VPN.
  • EvaluateAssess the implications and limitations; make judgments about the ideas, works, solutions or methods in relation to selected criteria. the use of a VPN.
  • DefineGive the precise meaning of a word, phrase, concept or physical quantity. the terms: protocol, data packet.
  • ExplainGive a detailed account including reasons or causes. why protocols are necessary.
  • ExplainGive a detailed account including reasons or causes. why the speed of data transmission across a networka group or system of interconnected people or things. can vary.
  • ExplainGive a detailed account including reasons or causes. why compression of data is often necessary when transmitting across a networka group or system of interconnected people or things..
  • OutlineGive a brief account. the characteristics of different transmission media.
  • ExplainGive a detailed account including reasons or causes. how data is transmitted by packet switching.
  • OutlineGive a brief account. the advantages and disadvantages of wireless networksa group or system of interconnected people or things..
  • DescribeGive a detailed account or picture of a situation, event, pattern or process. the hardware and software components of a wireless networka group or system of interconnected people or things..
  • DescribeGive a detailed account or picture of a situation, event, pattern or process. the characteristics of wireless networksa group or system of interconnected people or things..
  • DescribeGive a detailed account or picture of a situation, event, pattern or process. the different methods of networka group or system of interconnected people or things. security.
  • EvaluateAssess the implications and limitations; make judgments about the ideas, works, solutions or methods in relation to selected criteria. the advantages and disadvantages of each method of networka group or system of interconnected people or things. security.

Resources

References

  1. http://www.flaticon.com/
  2. https://en.wikipedia.org/wiki/Computer_network