BICSI RCDD-001 Exam Actual Questions

Which characteristic is an advantage of copper based media over optical fiber cable?

Correct Answer: C 🗳️

Which is an advantage of stranded conductors over solid conductors?

Correct Answer: D 🗳️

Composite conductors, although not generally recommended, may be used in special circumstances because they provide all of the following advantages
EXCEPT:

Correct Answer: A 🗳️

Which electrical characteristic is displayed with the correct preferred value?

Correct Answer: A 🗳️

If the input signal power to a communication system is 1 W and the output power is 1 mW, the system attenuation is:

Correct Answer: C 🗳️

Two sinusoidal signals have the same amplitude (A) and the same frequency (f). They differ in phase by 180 degrees. If these two signals are added together, the result is a sinusoidal signal having an amplitude of:

Correct Answer: A 🗳️

Which of the following correctly lists the lowest frequency band to the highest frequency band?

Correct Answer: A 🗳️

The conversion of an analog speech signal to a pulse code modulation (PCM) digital signal involves all of the following steps EXCEPT:

Correct Answer: E 🗳️

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?

Correct Answer: B 🗳️

You must place CAT6 cable above a factory floor with automated welding machines and hammer forges. Of the following, what type of shielding would be most effective?

Correct Answer: C 🗳️