Star - Computers connect to a centralized hub via cable segments. Ends are not terminated, but form a full loop connecting the last computer to the first computer. Mesh - Commonly used in WAN configurations. Routers are connected to multiple links for redundancy and to give the ability to determine the quickest route to a destination. One device designated media administrator.
Secondary device waits to be polled by primary device to check if it has data to be sent.
Known as RG-58 family, and has a 50 ohm impedance. When troubleshooting thinnet coaxial cable, the cable terminator must read 50ohms. Unshielded Twisted Pair - Twisted pair wiring, carries signal 100 meters, is susceptible to crosstalk. Shielded Twisted Pair - Twisted pair wiring, carries signal 100 meters, has foil or braided jacket around wiring to help reduce crosstalk and to prevent electromagnetic interference. Attenuation - The degrading of a signal as it travels farther from its origination.