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.
In practical terms, a tier 1 network is one of the few networks that are large enough that they do not need to pay other tier 1 networks in order to use their networks, and charge smaller networks for access to their network. A tier 1 network is not to be confused with a T-1 line. The Tier 1 networks, in combination, form the backbone of the internet. They are large enough to support peering agreements amongst themselves, so internet traffic can go across any of their networks. Whenever possible, though, a Tier 1âs own network traffic has the highest priority on its own network.