What is the frequency of DC component? A. 90 B. 45 C. 0 D. 270 Attenuation of a signal is? A. Delay of signal Strength of signals C. Nosie of signal D. Crosstalk B. Channel capacity is. A. Bandwidth B. Phase C. Period D. None of the above If a bandwidth of a signal is 100 Hz and s/n 30dB, then the data rate is. A. 30894 bps B. 42007bps C. 8900bps D. 25bps mple of unguided media is, . copper, fiber optic, both none of the above Bonus 2 pt. cach Which of this is not a guided media? A. Fiber Optic B. Coaxial C. Wireless LAN D. Copper wire Radio channels are attractive medium because A. Can penetrate walls B. Connectivity can be given to mobile user C. Can carry signals for long distance D. All of the mentioned Geostationary satellites A. Are placed at a fixed point above the earth B. Rotate the earth about a fixed axis C. Rotate the earth about a varying axis D. All of the mentioned Which transmission media has the highest transmission speed in a network? A. Coaxial Cable B. Optical fiber C. Electrical wire D. Twisters pair Bits can be send over guided and unguided media as analog signal by A. Digital Modulation B. Frequency Modulation C. Amplitude modulation D. Phase modulation