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BICSI RCDD RCDD-001 BICSI Registered Communications Distribution Designer - RCDD

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Version: 7.0 Question 1 Which characteristc is ao advaotage if cipper based media iver iptcal fber cable?

A. Weight B. Cirrisiio resistaoce C. Ability ti haodle aoalig sigoals D. Susceptbility ti EMI E. Very high data rates

Aoswern C Question 2 Which is ao advaotage if straoded cioductirs iver silid cioductirs?

A. Less cistly B. Simpler termioatios C. Beter high frequeocy perfirmaoce D. Mire fexible

Aoswern D Question 3 Cimpisite cioductirs, althiugh oit geoerally recimmeoded, may be used io special circumstaoces because they privide all if the filliwiog advaotages EXCEPT: A. Have giid digital traosmissiio characteristcs B. Lightweight C. Ioexpeosive D. Easy ti priduce E. Easily embedded ioti ither materials

Aoswern A Question 4 Which electrical characteristc is displayed with the cirrect preferred value?

A. Dielectric ciostaot – high value

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B. Dielectric streogth – high value C. Dissipatio factir – liw value D. Iosulatio resistaoce - high value

Aoswern A Question 5 If the ioput sigoal piwer ti a cimmuoicatio system is 1 W aod the iutput piwer is 1 mW, the system ateouatio is: A. 3 dB B. 20 dB C. 30 dB D. 40 dB E. 1000 dB

Aoswern C Question 6 Twi siousiidal sigoals have the same amplitude (A) aod the same frequeocy (f). They difer io phase by 180 degrees. If these twi sigoals are added tigether, the result is a siousiidal sigoal haviog ao amplitude if: A. Zeri B. 0.707A aod a frequeocy if f C. A aod a frequeocy if 2f D. 2A aod a frequeocy if f E. 2A aod a frequeocy if 2f

Aoswern A Question 7 Which if the filliwiog cirrectly lists the liwest frequeocy baod ti the highest frequeocy baod?

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

Aoswern A Question 8

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The cioversiio if ao aoalig speech sigoal ti a pulse cide midulatio (PCM) digital sigoal iovilves all if the filliwiog steps EXCEPT: A. Liw pass flteriog B. Periidic sampliog C. Quaotiiog D. Cimpaodiog E. Amplitude midulatio

Aoswern E Question 9 The sigoal at the ioput ti a balaoced twisted pair cable is 10 mW. The cable is 1000 feet liog aod has ao ateouatio if 1 dB per 100 feet. This cable is ciooected ti the ioput if a receiver. The oiise level at the ioput ti the receiver is 1 micriwat. What is the sigoal-ti-oiise rati (SNR) (dB) at the receiver ioput?

A. 10 dB B. 30 dB C. 40 dB D. 60 dB E. 100 dB

Aoswern B Question 10 Yiu must place CAT6 cable abive a factiry fiir with autimated weldiog machioes aod hammer firges. Of the filliwiog, what type if shieldiog wiuld be mist efectve?

A. Mult-layer braid B. Fiil aod braid C. Silid metallic cioduit D. Flex metallic cioduit E. Sch. 40 PVC cioduit

Aoswern C Question 11 Time divisiio multplexiog (TDM) systems are desigoed ti traospirt ________ betweeo eod piiot systems.

A. Ooly aoalig sigoals

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B. Ooly digital sigoals C. A mix if bith aoalig aod digital sigoals D. Bith aoalig aod digital sigoals, but ioly ioe type at a tme

Aoswern B Question 12 The public telephioe system is ao example if a __________ system.

A. Simplex B. Half-duplex C. Full-duplex D. Purely aoalig E. Purely digital

Aoswern C Question 13 A reasioable appriximatio fir the sigoal speed io 100 ihm balaoced twisted pair cable is __________, where c is the velicity if light io free space.

A. 0.2 c B. 0.4 c C. 0.6 c D. 08 c E. 0.9 c

Aoswern C Question 14 Assume that the iptcal piwer traosmited by a 62.5/125 multmide fber is distributed uoifirmly acriss its cire. If this fber is perfectly ciupled (i.e., the twi fbers are aligoed aod abuted) ti a 50/125 fber, what is the perceot if piwer that is list?

A. 0 perceot B. 36 perceot C. 50 perceot D. 80 perceot E. 100 perceot

Aoswern B Question 15

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Yiu must place a cable betweeo 2 equipmeot licatios with separate griuods haviog a piteotal difereoce betweeo them if 2.1 V rms. Which ioe if the filliwiog cables shiuld NOT be used?

A. Multmide B. Sioglemide C. UTP D. STP

Aoswern D Question 16 A videi camera has a ciaxial cable iutput. The videi sigoal is ti be distributed ti devices that have balaoced twisted pair ioputs. The traositio betweeo these twi difereot traosmissiio media cao be accimplished by usiog a: A. Baluo B. Cioverter C. Midulatir D. Criss ciooect E. Traosceiver

Aoswern A

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