Cdd Study guides, Class notes & Summaries

RCDD Test TDMMV14 (Questions taken from Review Courses DD101, DD102, and the BICSI RCDD Study Guide) Questions Answered Correctly To Score A+ Which of these cables is considered immune to electromagnetic interference? A) Optical Fiber B) Balanced Twisted-Pair C) Coaxial A) Optical Fiber Reference: TDMM, 14th edition, page 2-37 Which of the following terms describes the transmission of signals in both directions at the same time? A) Simplex B) Half-duplex C) Full duplex C) Ful...

What is the recommended distance between ceiling mounted speakers in a hallway with heavy traffic? A. 2.4 m (8 ft) B. 3.7 m (12 ft) C. 4.9 m (16 ft) D. 6 m (20 ft) - A. 2.4 m (8 ft) A space has all hard surfaces including architecture and furnishings. The audio programming produced from the distributed sound system has become unintelligible. Which of the following will NOT mitigate the problem? A. Add tapestries to the walls. B. Provide additional speakers at lower output. C. Increase ...

RCDD Test (Topic 8 - Topic 14) Questions With 100% Correct Answers | Verified | Updated 2024

RCDD TEST QUESTIONS (TOPIC 15 - TOPIC 21) WITH SOLVED SOLUTIONS. What is the recommended distance between ceiling mounted speakers in a hallway with heavy traffic? A. 2.4 m (8 ft) B. 3.7 m (12 ft) C. 4.9 m (16 ft) D. 6 m (20 ft) A. 2.4 m (8 ft) A space has all hard surfaces including architecture and furnishings. The audio programming produced from the distributed sound system has become unintelligible. Which of the following will NOT mitigate the problem? A. Add tapestries to the ...

RCDD TEST QUESTIONS (TOPIC 15 - TOPIC 21) WITH SOLVED SOLUTIONS.

RCDD TEST QUESTIONS (TOPIC 8 - TOPIC 14) ANSWERED CORRECTLY!! Firestop ________, in conjunction with steel wedging plates, go in a steel cable tray. A. Bag B. Block C. Intumescent sheet D. Silicone foams A. Bag Which of the following is a nonmechanical firestop system? A. Cable transit system B. Firestop blocks C. Fire rated pathway device D. Factory fabricated sleeve system B. Firestop blocks What type of material does NOT support combustion even under accelerated conditions?...

RCDD Test Exam (Topic 15 - Topic 21) Questions and Answers With Complete Solutions 100% Correct 2024

C Which of the following is an advantage of loose-tube fiber optic cable? A - a greater impact resistance for individual fiber strands B - smaller bend radius C- Greater tensile strength D - A smaller weight per unit 8268 6-23 D Which of the following is an advantage to tight buffered fiber optic cable? A - Greater tensile strength B - More robust outer jacket C - More resistant to temperature changes D - Smaller bend radius for low fiber count cables 7742 6-25 ...

RCDD TEST QUESTIONS (TOPIC 15 - TOPIC 21) 100% Correct Answers | Verified | Latest 2024 Version

C If the input signal power to a communication system is 1 W and the output power is 1 mW, the system attenuation is: A. 3 dB B. 20 dB C. 30 dB D. 40 dB E. 1000 dB B The signal at the input to a balanced twisted pair cable is 10 mW. The cable is 1000 feet long and has an attenuation of 1 dB per 100 feet. This cable is connected to the input of a receiver. The noise level at the input to the receiver is 1 microwatt. What is the signal-to- noise ratio (SNR) (dB) at the receiver input...