Radio channels are attractive medium because A. Can penetrate walls B. C. D. Connectivity can be given to the mobile user Can carry signals for long-distance All of the mentioned Which transmission media has the highest transmission speed in a network? A. Coaxial Cable B. Optical fiber C. Electrical wire Twisters pair D. d Which of these is not a guided media? A. Fiber Optic B. Coaxial C. Wireless LAN D. Copper wire