RCDD CH1 PRINCIPLES OF TRANSMISSION EXAM QUESTIONS AND ANSWERS ALREADY GRADED A+

B What is the center wavelength of a vertical cavity surface emitting laser (VCSEL)? A - 780 nm B - 850 nm C - 1300 nm D - 1550 nm Page 1-92 A What is the system gain for an optical fiber multimode cable for which the manufacturer's specifications are given above? A 2 dB B -11 dB C -2 dB D 9.2 dB Page 1-114 A Which of the following is a measure of the maximum voltage that insulation can withstand without breakdown? A - Dielectric strength B - Dielectric constant C - Dissipation factor D - Insulation resistance Page 1-7 A Which of the following sets the standard for comparing conductivity? A - Copper B - Copper-clad steel C - Copper alloy D - Aluminum Page 1-2 B Which of the following transmits signals in either direction, but only in one direction at a time? A - Simplex B - Half-duplex C - Full duplex Page 1-42 B All twisted-pair cables are referenced in the cabling standards at _______________. A - 10 °C +/- 3 °C (50 °F +/- 5.4 °F) B - 20 °C +/- 3 °C (68 °F +/- 5.4 °F) C - 40 °C +/- 3 °C (104 °F +/- 5.4 °F) D - 60 °C +/- 3 °C (140 °F +/- 5.4 °F) Page 1-9 B How many voice channels can the digital signal level one (DS1) format handle if 32,000 b/s adaptive differential pulse code modulation (ADPCM) encoding is used? A - 24 B - 48 C - 96 D - 192 Page 1-126 A Which of the following is an advantage of stranded conductors over solid conductors? A - More flexibility B - Less resistance C - Less costly D - Less complex termination systems Page 1-4 A Which of the following solid c