1. What is the purpose of the OSI physical layer? § controlling access to media § transmitting bits across the local media § performing error detection on received frames § exchanging frames between nodes over physical network media 2. Why are two strands of fiber used for a single fiber optic connection? § The two strands allow the data to travel for longer distances without degrading. § They prevent crosstalk from causing interference on the connection. § They increase the speed at which the data can travel. § They allow for full-duplex connectivity. 3. Which characteristic describes crosstalk? § the distortion of the network signal from fluorescent lighting § the distortion of the transmitted messages from signals carried in adjacent wires § the weakening of the network signal over long cable lengths § the loss of wireless signal over excessive distance from the access point 4. Which procedure is used to reduce the effect of crosstalk ...