Questão Q736197 - Tecnologia da Informação

Question

Leia o texto a seguir e responda às questões de números 57 e 58.	[…]	For mobile computers and telephones, cellular radio is the up-and-coming technology. GSM, CDPD, and CDMA are widely used. The IEEE 802 LANs are: CSMA/CD, token bus, and token ring. Each of these has its own unique advantages and disadvantages, and each has found its own user community and will probably continue to serve that community for years to come. Convergence to a single LAN standard is an unlikely event. A new addition to this family is DQDB, being sold as a MAN in many cities. An organization with multiple LANs often connects them with bridges. When a bridge connects two or more different kinds of LANs, new problems arise, some of them insoluble. […](Extraído de: Computer Networks, A.S. Tanenbaum, 3rd Edition, Prentice-Hall, pg. 335) Leia o texto a seguir e responda às questões de números 57 e 58.	[…]	For mobile computers and telephones, cellular radio is the up-and-coming technology. GSM, CDPD, and CDMA are widely used. 	The IEEE 802 LANs are: CSMA/CD, token bus, and token ring. Each of these has its own unique advantages and disadvantages, and each has found its own user community and will probably continue to serve that community for years to come. Convergence to a single LAN standard is an unlikely event. A new addition to this family is DQDB, being sold as a MAN in many cities. 	An organization with multiple LANs often connects them with bridges. When a bridge connects two or more different kinds of LANs, new problems arise, some of them insoluble. 	[…](Extraído de: Computer Networks, A.S. Tanenbaum, 3rd Edition, Prentice-Hall, pg. 335) De acordo com o texto, CSMA/CD, token bus e token ring são LANs padrão IEEE 802 que

Gran Questões · Accepted Answer

apresentam, cada uma, vantagens e desvantagens próprias.

Gran Questões · Answer

apesar de possuírem vantagens, ainda não foram plenamente descobertas.

Gran Questões · Answer

cada vez mais convergem para um único padrão de LAN, apesar de isso ter sido considerado improvável.

Gran Questões · Answer

estão organizadas em um tipo de rede múltipla, conectada em todos os seus extremos.

Gran Questões · Answer

incorporam inúmeros obstáculos, devendo, no futuro, ser substituídas.

De acordo com o texto, CSMA/CD, token bus e token ring são...