## File Info

 Exam BICSI Registered Communications Distribution Designer - RCDD Number RCDD-001 File Name BICSI Registered Communications Distribution Designer -RCDD.passleader.RCDD-001.2019-02-23.1e.358q.vcex Size 1.11 Mb Posted February 23, 2019 Downloads 12

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## Demo Questions

Question 1
Which characteristic is an advantage of copper based media over optical fiber cable?

• A: Weight
• B: Corrosion resistance
• C: Ability to handle analog signals
• D: Susceptibility to EMI
• E: Very high data rates

Question 2
Which is an advantage of stranded conductors over solid conductors?

• A: Less costly
• B: Simpler terminations
• C: Better high frequency performance
• D: 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:

• A: Have good digital transmission characteristics
• B: Lightweight
• C: Inexpensive
• D: Easy to produce
• E: Easily embedded into other materials

Question 4
Which electrical characteristic is displayed with the correct preferred value?

• A: Dielectric constant – high value
• B: Dielectric strength – high value
• C: Dissipation factor – low value
• D: 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:

• A: 3 dB
• B: 20 dB
• C: 30 dB
• D: 40 dB
• E: 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:

• A: Zero
• B: 0.707A and a frequency of f
• C: A and a frequency of 2f
• D: 2A and a frequency of f
• E: 2A and a frequency of 2f

Question 7
Which of the following correctly lists the lowest frequency band to the highest frequency band?

• A: MF, HF, VHF, UHF
• B: UHF, VHF, HF, MF
• C: HF, MF, UHF, VHF
• D: VHF, UHF, MF, HF
• E: 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:

• A: Low pass filtering
• B: Periodic sampling
• C: Quantizing
• D: Companding
• E: 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?

• A: 10 dB
• B: 30 dB
• C: 40 dB
• D: 60 dB
• E: 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?

• A: Multi-layer braid
• B: Foil and braid
• C: Solid metallic conduit
• D: Flex metallic conduit
• E: Sch. 40 PVC conduit

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