Quick Test

Powert point

Form

Form

Form
https://docs.google.com/forms/d/1occqZkiZ93Q44dL_3yar4qR1EdJY7fkGLSs_IEIlXRE/viewform
Do this FORM to know what you have learnt

POWER POINT

https://docs.google.com/file/d/0B60f61WjQtCEZV85UEtBOEdoRlE/edit?usp=sharing
http://it4esopresentations.blogspot.com.es/

Hubs and Switches

Hubs and Switches

QUICK TEST

https://docs.google.com/file/d/0B60f61WjQtCEam5teldQU2NGV0k/edit?usp=sharing

Carrier Medium

Devices need to be connected via a carrier medium:

• Metal cable:

1. Advantages: It uses electrical signals and it is cheap to  by.
2. Disadvantages: limited capacity maycause problems in installation.

• Fibre optic cable:

1. Advantages: uses light beams, it also have a high capacity, resistant to interference and weathering.
2. Disadvantages: it is more expensive and needs special NICs.

• Wireless: 

1. Advantages: no need for building work and it's easy to add new nodes.
2. Disadvantages: security is more difficult to achieve and it has a limited range.

Components