Vendor: BICSI Exam Code: RCDD-001 Exam Name: BICSI Registered Communications Distribution Designer - RCDD Date: Feb 23, 2019 File Size: 1 MB Downloads: 2

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## Demo Questions

##### Question 1
Which characteristic is an advantage of copper based media over optical fiber cable?
1. Weight
2. Corrosion resistance
3. Ability to handle analog signals
4. Susceptibility to EMI
5. Very high data rates
##### Question 2
Which is an advantage of stranded conductors over solid conductors?
1. Less costly
2. Simpler terminations
3. Better high frequency performance
4. More flexible
##### Question 3
Composite conductors, although not generally recommended, may be used in special circumstances because they provide all of the following advantages EXCEPT:
1. Have good digital transmission characteristics
2. Lightweight
3. Inexpensive
4. Easy to produce
5. Easily embedded into other materials
##### Question 4
Which electrical characteristic is displayed with the correct preferred value?
1. Dielectric constant – high value
2. Dielectric strength – high value
3. Dissipation factor – low value
4. Insulation resistance - high value
##### Question 5
If the input signal power to a communication system is 1 W and the output power is 1 mW, the system attenuation is:
1. 3 dB
2. 20 dB
3. 30 dB
4. 40 dB
5. 1000 dB
##### Question 6
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:
1. Zero
2. 0.707A and a frequency of f
3. A and a frequency of 2f
4. 2A and a frequency of f
5. 2A and a frequency of 2f
##### Question 7
Which of the following correctly lists the lowest frequency band to the highest frequency band?
1. MF, HF, VHF, UHF
2. UHF, VHF, HF, MF
3. HF, MF, UHF, VHF
4. VHF, UHF, MF, HF
5. HF, MF, UHF, VHF
##### Question 8
The conversion of an analog speech signal to a pulse code modulation (PCM) digital signal involves all of the following steps EXCEPT:
1. Low pass filtering
2. Periodic sampling
3. Quantizing
4. Companding
5. Amplitude modulation
##### Question 9
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?
1. 10 dB
2. 30 dB
3. 40 dB
4. 60 dB
5. 100 dB
##### Question 10
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?
1. Multi-layer braid
2. Foil and braid
3. Solid metallic conduit
4. Flex metallic conduit
5. Sch. 40 PVC conduit