The Casa Grande food company, located in Santiago, is currently updating its Ethernet protocols because it has had problems at different levels of industrial automation. They work with IP (Internet Protocol) communication protocols and had good links to share files, access printers, and browse the Internet. However, the needs of the company today are more demanding because it is expanding. The company has decided to hire specialized personnel to solve their current problems and come to you to propose solutions. 

1. Indicate the type of Ethernet protocol that the company should use and detail 3 characteristics. 

2. Build a table where you identify the types of LAN switches, their respective characteristics and the function they perform in the company network.

3. In order to prevent security risks in the company's network, prepare a comparative table where you highlight the advantages of each of the address resolution protocols and recommend the one that best suits the company's case.