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Information Technology Unit 1 Outcome 2: Networks

Information Technology Unit 1 Outcome 2: Networks. Physical Design of a network People who develop & support networks. Physical Design of a network. Network diagrams

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Information Technology Unit 1 Outcome 2: Networks

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  1. Information TechnologyUnit 1 Outcome 2: Networks Physical Design of a network People who develop & support networks

  2. Physical Design of a network • Network diagrams • Networks in medium to large organisations can become very complex, with the number of devices that can connect throughout the premises. • Network diagrams use straight lines to represent cables, and icons are used to represent communications devices.

  3. Physical design of a network

  4. Developing a network • Networks are vital to the operation of most organisations. • When designing a network, it is paramount that a user’s needs are met and implemented. • A new network may need to be established or a significant change may need to be made to the existing network if the company’s goals are not currently being met.

  5. Developing a network • Systems analyst • Role: to analyse the requirements of the organisation & its users, as well as design & develop new or improved information systems. • Systems/network programmer • Install & maintain software on the network • Technical specialists • Install & configure the communications devices, network hardware & communications channels

  6. Supporting a network • Established networks require a number of professionals who are responsible for support & maintenance tasks. • These roles include: • Network Administrator • Network support technician • Help-desk support • Website developer

  7. Activity • Page 90-91 has descriptions of each of the aforementioned roles. • You are required to read through these and summarise each role on the following slides.

  8. Supporting a network • Network administrator

  9. Supporting a network • Network support technician

  10. Supporting a network • Help-desk support

  11. Supporting a network • Website developer

  12. Network documentation • A procedures manual should be prepared by the network administrator shortly after a network is built. • It should outline the steps required to operate, maintain & expand the network. • Procedures manuals are then used by the network administrator, network support techs, help-desk operator & visiting technical specialists, in order to help them perform maintenance tasks. • It should also include the following: • Description of techniques required for each procedure • Configuration information for the various devices & software on the network.

  13. Network documentation • A network procedures manual is a document prepared by the network admins that outline the steps required to operate, maintain & develop the network. • The manual is intended to be used by the network admin, network support techs, help-desk operators & visiting technical specialists to help them perform necessary tasks. • It should include a description of the techniques required for each procedure, and a listing of configurations for various devices & software on the network.

  14. Revision • Test Your Knowledge Questions 26-43

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