Chapter 3 Customer Service Answers
1. The wireless standard is designed to provide network access for computing
devices regardless of where they are located physically. To obtain this physical
independence, devices use radio waves rather than network cabling.
2. In a FDDI network layout, a pair of fiber-optic rings connects each device. Each
ring contains a single token, and the tokens travel in opposite directions between
the devices. If a break or other problem occurs in the primary ring, the secondary
ring acts as a backup, assuring that data continues to move on the network. Since
FDDI networks are fault tolerant and support high data transmission speeds, they
are commonly used as network backbones.