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RCDD-002 BICSI Registered Communications Distribution Designer - RCDD Questions and Answers

Questions 4

Which of the following is NOT a type of connector for optical fiber?

Options:

A.

LC

B.

ST

C.

SFF

D.

S/FTP

E.

SC

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Questions 5

Important considerations when designing telecommunications distribution within modular furniture include all of the following EXCEPT:

Options:

A.

How the furniture pathways will be connected to horizontal building pathways

B.

Separation of telecommunications cabling and electrical power

C.

Diameter of cable to be installed

D.

Maximum initial fill ratio of 40 percent when derated because of corners

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Questions 6

When selecting poles for aerial telecommunications facilities, which of the following is the class number for the strongest rated pole?

Options:

A.

10

B.

6

C.

4

D.

2

E.

00

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Questions 7

Assuming the total fill capacity of a pathway is 100 cables (all of the same cable type and size), the MAXIMUM number of cables to be installed during the initial installation, without exceeding the fill ratio is:

Options:

A.

25

B.

40

C.

50

D.

60

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Questions 8

When considering the DAS, which component acts as a bidirectional antenna?

Options:

A.

Multimode optical fiber cable

B.

Radiating coaxial cable

C.

Shielded twisted pair (STP) cable

D.

Single mode optical fiber cable

E.

Screened twisted pair (ScTP) cable

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Questions 9

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

Options:

A.

3 dB

B.

20 dB

C.

30 dB

D.

40 dB

E.

1000 dB

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Questions 10

Which layer of the OSI model covers physical cable connections?

Options:

A.

Layer 1

B.

Layer 3

C.

Layer 5

D.

Layer 7

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Questions 11

Data representation including code translations, compressions, and encryptions is performed by what layer of the OSI model?

Options:

A.

Layer 2

B.

Layer 3

C.

Layer 4

D.

Layer 5

E.

Layer 6

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Questions 12

The distance a CCTV signal may be run is determined by the strength of the signal at the source, required signal strength at the receiver, and:

Options:

A.

Signal loss of the cable

B.

Power requirement of the receiving device

C.

Recorded image

D.

Video format

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Questions 13

The purpose of QoS on an IP network is for:

Options:

A.

FAX transmission

B.

Data representation

C.

Audio quality

D.

Streaming video quality

E.

Real time web based services

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Questions 14

Assume that the optical power transmitted by a 62.5/125 multimode fiber is distributed uniformly across its core. If this fiber is perfectly coupled (i.e., the two fibers are aligned and abutted) to a 50/125 fiber, what is the percent of power that is lost?

Options:

A.

0 percent

B.

36 percent

C.

50 percent

D.

80 percent

E.

100 percent

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Questions 15

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?

Options:

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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Questions 16

Often associated with raised flooring, a(n) ________ may consist of copper straps taped to the concrete floor, or it may be the floor itself with the stringers that support the tiles acting as the bonding conductor across the gradient of the floor.

Options:

A.

Grounding electrode conductor (GEC)

B.

Electrical ground bar (EGB)

C.

Signal reference grid (SRG)

D.

Telecommunications bonding backbone (TBB)

E.

Drain wire

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Questions 17

The MINIMUM dimensions of the telecommunications main grounding busbar is ________ and variable in length.

Options:

A.

4 mm (0.16 in) x 80 mm (3.15 in)

B.

6.3 mm (0.25 in) x 100 mm (4 in)

C.

8 mm (0.31 in) x 110 mm (4.33 in)

D.

10.5 mm (0.41 in) x 140 mm (5.51 in)

E.

12.75 mm (0.50 in) x 175 mm (6.89 in)

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Questions 18

Certain systems must exist relative to bonding and grounding at every site. Which of the following is NOT one such system?

Options:

A.

AC grounding electrode system (e.g., in some countries it may also be known as the earthing system)

B.

Telecommunications bonding infrastructure

C.

Lightning protection system

D.

Equipment grounding system (e.g., in some countries it may also be known as the equipment bonding system)

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Questions 19

When a building is not on the property line, the building owner should provide a MINIMUM of ________ conduits from a point inside the building, to the property line or easement for entrance facilities.

Options:

A.

Five

B.

Four

C.

Three

D.

Two

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Questions 20

Which of the following electrical devices is used to convert AC to DC?

Options:

A.

Inverter

B.

Rectifier

C.

Transformer

D.

Line filter

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Questions 21

All of the following are used to control static discharge EXCEPT:

Options:

A.

Ion generator

B.

Discharge plates and bracelets

C.

Maintenance of humidity of between 30 and 55 percent

D.

Installation of isolated grounds

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Questions 22

You have been asked to provide a N+1 level of power redundancy in the new equipment room (ER) being designed with a Tier-II power supply. What should you do?

Options:

A.

Provide a UPS that serves all of the equipment in the facility.

B.

Provide two separate UPS units with an automatic power failure transfer to serve entire facility.

C.

Provide two separate UPS units with each one serving half the equipment in the facility.

D.

Provide two separate UPS systems with one serving the entire facility and the second on automatic power failure transfer to serve critical circuits only.

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Questions 23

When labeling pathways, which one of the following guidelines should be met?

Options:

A.

Labeling should be affixed at the ends of each pathway.

B.

Pathways should not be labeled at regular intervals to avoid labeling removal during cable installation.

C.

Avoid marking conduits from the main equipment room (ER).

D.

Pathways do not need to have unique identifiers as they are only supporting cables.

E.

Only pathways containing fire/life/safety systems and electrical system should be labeled to prevent interference with other applications.

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Questions 24

In an industry where a high level of humidity is measured, which type of label should be used?

Options:

A.

Moisture-induced decay and degradation resistant

B.

Ultraviolet (UV) light protected

C.

Heat and cold resistant

D.

Smudge resistant

E.

Chemical resistant

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Questions 25

Within a data center, how many concentric layers are considered necessary to provide effective security?

Options:

A.

One

B.

Two

C.

Three

D.

Four

E.

Five

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Questions 26

Which class of the system applies when the premise only has a single equipment room (ER), and it is the only telecommunications space administered?

Options:

A.

Class 1

B.

Class 2

C.

Class 3

D.

Class 4

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Questions 27

What type of redundancy provides two complete units, modules, paths or systems for every one required for a base system.

Options:

A.

N

B.

N+1

C.

N+2

D.

2N

E.

2(N+1)

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Questions 28

It is important to keep all underfloor cabling systems very neat and orderly. Cabling systems must be managed to ensure that air flow is not impeded by the height or volume of underfloor cabling. Keeping copper communications cabling properly separated from is one design approach. To resolve this:

Options:

A.

Power cabling should be routed in the space below the floor in either hot or cold aisle

B.

Route the copper cables in the cold aisle and route the power cabling in the hot aisle

C.

Power cabling should be routed in the overhead space

D.

Route the copper cables in the hot aisle and route the power cabling in the cold aisle

E.

Copper cabling can be routed in either hot or cold aisles without any consequence in performance of the network

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Questions 29

To accommodate telephone, data, CATV, security and multimedia, a MINIMUM of ________ strands of optical fiber auxiliary disconnect outlet (ADO) cable should be provided.

Options:

A.

Two

B.

Four

C.

Five

D.

Six

E.

Eight

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Questions 30

You are designing a system requiring the transmission of data. Your system must perform higher than ________ kHz in order to do so.

Options:

A.

4

B.

8

C.

10

D.

16

E.

32

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Questions 31

You are designing a multi-story dwelling and need to place the CTR's. Every floor is not available. What is the alternate spacing for the CTRs?

Options:

A.

Every 2 floors

B.

Every 3 floors

C.

Every 4 floors

D.

Every 5 floors

E.

1st floor and midway up through the height of the building

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Questions 32

What is the International Organization for Standardization/International Electrotechnical Commission ISO/IEC class rating for American National Standards Institute/Telecommunication Industry Association (ANSI/TIA) Category 5e cable?

Options:

A.

Class B

B.

Class C

C.

Class D

D.

Class E

E.

Class F

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Questions 33

What is the testing frequency of a Category 6/Class E cable?

Options:

A.

100 MHz

B.

200 MHz

C.

250 MHz

D.

500 MHz

E.

600 MHz

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Questions 34

What type of optical fiber is used primarily for outside plant (OSP) applications?

Options:

A.

Tight-buffer

B.

Loose-tube

C.

Breakout style

D.

Duplex zip cord

E.

Ribbon

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Questions 35

You are required by architectural design to place UTP cables in the same space as unshielded power lines. How should you proceed with the placement of your cables?

Options:

A.

Require the architect/electrical engineer to place shielding in the space before your UTP is placed.

B.

You should provide a minimum separation of 610 mm (24 in).

C.

You should provide a minimum separation of 229 mm (9 in).

D.

You should provide a minimum of two 101 mm (4 in) RMC.

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Questions 36

Which of the following is an undesirable electromagnetic effect on a device(s)?

Options:

A.

(EMC)

B.

Electromagnetic interference (EMI)

C.

Radio frequency interference (RFI)

D.

Fast transients

E.

Electrostatic discharge (ESD)

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Questions 37

You have discovered a common mode current on the metallic cable sheaths of your building riser cables. What is the MOST likely cause for you to investigate?

Options:

A.

Lack of cable protection

B.

Two separate and distinct ground references

C.

Improper secondary protection

D.

Improper physical protection of cable

E.

Improper placement and/or termination of cables

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Questions 38

Which of the following types of conduit uses set screw couplings and connectors?

Options:

A.

RMC

B.

EMT

C.

IMC

D.

Schedule 80 PVC

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Questions 39

You are starting work on a new high school. The architect has provided you with a telecommunications room located between the kitchen cold store room and the automotive and welding shops. What should you do?

Options:

A.

Work with the architect to find another location

B.

Insist that the welding shop be placed as far from the telecommunications space as possible

C.

File a complaint with the client

D.

Provide shielded cable tray in the telecommunications room and in the outer halls

E.

Request that shielding be placed around the compressors and the arc welding units

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Questions 40

The decision regarding the number of optical fibers to install (fiber strand count) in a backbone depends largely on all of the following EXCEPT:

Options:

A.

Level of multiplexing

B.

Intended end-user applications

C.

Physical topology of the cabling system

D.

Distance between telecommunications room (TR)

E.

Cabling system configuration

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Questions 41

What is the MINIMUM ceiling height of a telecommunications room?

Options:

A.

2.1 m (7.0 ft)

B.

2.3 m (7.5 ft)

C.

2.4 m (8.0 ft)

D.

2.6 m (8.5 ft)

E.

2.7 m (9.0 ft)

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Questions 42

One of the advantages of using optical fiber in the backbone installation is:

Options:

A.

More cost effective

B.

Immunity to EMI

C.

Safer to install

D.

Requires less skill to install

E.

Has better manufacturer support

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Questions 43

The RECOMMENDED balanced twisted-pair cable for building backbone cabling consists of ________ round solid copper conductors with a nominal characteristic of 100 ohm.

Options:

A.

20-24 AWG

B.

22-26 AWG

C.

23-24 AWG

D.

24-22 AWG

E.

26-20 AWG

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Questions 44

Which area of project management covers the blending of various subteams into a project organization with a cohesive plan?

Options:

A.

Integration management

B.

Human resources management

C.

Risk management

D.

Communications management

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Questions 45

What is the PERT estimate of time for cable placement on a given job?

- Optimistic time is 100 hours

- Most likely time is 125 hours

- Pessimistic time is 210 hours

Options:

A.

100 hours

B.

125 hours

C.

135 hours

D.

155 hours

E.

175 hours

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Questions 46

At the end of the third week of a project, the actual cost of work performed is $7000 USd and the budgeted cost of work performed is $8000 USd. Which of the following is true?

Options:

A.

The project is under budget.

B.

The project is budget incorrect.

C.

The project has been back-end loaded.

D.

The project is over budget.

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Questions 47

You are designing an interactive patient television system (IPTS) that will provide internet, nurse call and LCD television services. From the following, which medium will NOT support these services in a backbone cabling system?

Options:

A.

Balanced twisted pair

B.

Coaxial 1/2 inch hard-line cable

C.

Multimode optical fiber cable

D.

RG-11 coaxial cable

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Questions 48

You are designing a nurse call system for an assisted care facility. What type of nurse call system would best suit the needs for the facility?

Options:

A.

Audiovisual system

B.

Staff emergency system

C.

Tone/Visual system

D.

Bedside system

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Questions 49

The ________ system is an application used for storing and viewing captured digital radiology image files.

Options:

A.

CCU

B.

ICU

C.

DICOM

D.

PACS

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Questions 50

You have been asked to design a public safety microwave radio system for the city of Fairbanks, Alaska. The requirement for reliability, maximum throughput, and minimum interference by fog, rain, or heavy snow is critical. Which frequency will best suit the system's needs?

Options:

A.

2.4 GHz

B.

4.9 GHz

C.

6.0 GHz

D.

11.0 GHz

E.

19.0 GHz

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Questions 51

Which of the following is NOT a primary method of transporting radio signals in an active DAS?

Options:

A.

Analog modulation of the RF signal

B.

Down conversion of the RF signal

C.

Up conversion of the RF signal

D.

Digital sampling of the RF signal

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Questions 52

You are designing an audible alarm notification system for an office environment with an ambient noise level of 55 dBA. What dBA level should the horn be set at?

Options:

A.

40 dBA

B.

50 dBA

C.

55 dBA

D.

65 dBA

E.

70 dBA

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Questions 53

You are designing a strobe visual notification system for a fire alarm system. You have a hallway that is 4.6 m (15 ft) wide and 100 m (328 ft) long. How many strobes should be placed in the hallway?

Options:

A.

One

B.

Two

C.

Three

D.

Four

E.

Five

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Questions 54

BICSI recommends that any trench ________ or more deep must be shored to prevent cave in.

Options:

A.

1.2 m (4 ft)

B.

1.5 m (5 ft)

C.

1.7 m (5.5 ft)

D.

1.83 m (6 ft)

E.

2.1 m (7 ft)

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Exam Code: RCDD-002
Exam Name: BICSI Registered Communications Distribution Designer - RCDD
Last Update: May 16, 2024
Questions: 361
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