September 1, 2009 - 9:06am. Starting today, increases in the taxation rates on soft drinks, personal grooming and hygiene products, and candy will take effect to help pay for improvements to Illinoisâ infrastructure.
Answer: A. In a mesh topology, all devices are connected directly to every other device on the network. If one link fails, there is always another available. It is the most fault-tolerant network topology. A hierarchical star is a variation of the standard star and is not considered a fault-tolerant implementation. A ring topology is not considered fault tolerant. In a star topology, each device is normally connected to one central device and therefore is not fault tolerant.
Compared to the bus topology, a star network generally requires more cable, but a failure in any star network cable will only take down one computer's network access and not the entire LAN. (If the hub fails, however, the entire network also fails.) See the illustration of Star Network Topology.