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

Question # 4

A building has six floors plus a basement. Each floor is 10,000 square feet and has approximately 50 CATV outlets respectively. There is a single hardline trunk cable installed from the basement headend passing through the telecommunications room (TR) on each floor. What is usually the MOST cost effective coaxial cable design to implement on the horizontal distribution from the telecommunications room (TR)?

A.

Trunk and tap

B.

Home run

C.

Video over balanced twisted-pair

D.

Video over optical fiber

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Question # 5

A building has a series of CATV outlets each with cables installed back to a telecommunications room (TR), and each telecommunications room (TR) is connected to the headend. What is this type of topology called?

A.

Star

B.

Mesh

C.

Bus

D.

Series

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Question # 6

Active video converters are required for what type of CATV distribution system?

A.

Video over balanced twisted-pair

B.

Trunk and tap

C.

Home run

D.

Video over optical fiber

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Question # 7

For the telecommunications industry, the nominal operating voltage is ________ volts DC.

A.

+ 24

B.

– 24

C.

+ 48

D.

– 48

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Question # 8

The formula for calculating BTUs from electrical power is:

A.

W x 0.707

B.

W x 1.732

C.

W x 3.1416

D.

W x 3.413

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Question # 9

DC loads are generally expressed in:

A.

Amperes

B.

Volts

C.

Voltage amperes (VA)

D.

Watts

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Question # 10

Within a data center, if you have dual path connectivity between the primary entrance room and secondary entrance room, in addition to dual connectivity between these two rooms and the main distribution and secondary distribution areas, what tier level would this infrastructure design represent?

A.

Tier I

B.

Tier II

C.

Tier III

D.

Tier IV

E.

Tier V

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Question # 11

If you are working on a physical security plan for a data center and focusing on building and access control, what layer of the plan would this relate to?

A.

Layer 1

B.

Layer 2

C.

Layer 3

D.

Layer 4

E.

Layer 5

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Question # 12

What is the MAXIMUM horizontal cable length permitted for centralized optical fiber cabling from the MDA within a data center?

A.

100 m (328 ft)

B.

200 m (656 ft)

C.

300 m (984 ft)

D.

400 m (1312 ft)

E.

500 m (1640 ft)

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Question # 13

The standard floor space coverage area for each building automation system (BAS) is a BAS outlet or device for every ________ of floor space.

A.

9.3 sq m (100 sq ft)

B.

23 sq m (250 sq ft)

C.

31 sq m (330 sq ft)

D.

56 sq m (600 sq ft)

E.

84 sq m (904 sq ft)

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Question # 14

Which type of cable tray is best described as a ventilated bottom with side rails?

A.

Ventilated channel

B.

Ladder

C.

Spline

D.

Ventilated trough

E.

Basket tray

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Question # 15

You are designing a horizontal distribution system that will have a zone box located 71.6 m (235 ft) away from the telecommunications room (TR). A 50 mm (2 in) conduit is designed from the TR to a pull box located 36.6 m (120 ft) away from the TR. A 1 1/2 inch conduit is designed from the pull box to the zone box located 35.1 m (115 ft) beyond the pull box. Assuming no conduit bends, and excluding the TR and zone box, what is the total number of pull boxes/pull points required in this horizontal conduit system between the telecommunications room (TR) and zone box?

A.

2

B.

3

C.

4

D.

5

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Question # 16

Exhibit:

The diagram below is a typical configuration for:

A.

Work area 3-connector permanent link

B.

Work area 3-connector channel

C.

Data center 4-connector channel

D.

Data center 4-connector permanent link

E.

Work area 4-connector permanent link

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Question # 17

You are preparing to test newly installed open office cabling. Within the open office cabling, there are multiple consolidation points (CP) that were installed while waiting for furniture. How do you proceed with permanent link testing?

A.

Test to each CP, then test from CP to workstation.

B.

Wait for open office cabling to be completed, then test to each workstation outlet, including the CP.

C.

Test that the CP is within 90 meters, then test again to the workstation outlet.

D.

Perform permanent link tests to each CP, then continuity tests from CP to each workstation outlet.

E.

Test to each workstation outlet, treating each outlet as a channel.

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Question # 18

Premises optical fiber links should be tested:

A.

In one direction at one corresponding wavelength

B.

In one direction at both corresponding wavelengths

C.

Bidirectionally at one corresponding wavelength

D.

Bidirectionally at both corresponding wavelengths

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Question # 19

ITU-T G.655 recommends which type of singlemode optical fiber?

A.

DSF

B.

N-DSF

C.

NZ-DSF

D.

SF

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Question # 20

What type of address is 10.162.02.14?

A.

IP

B.

MAC

C.

Host

D.

Broadcast

E.

Unicast

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Question # 21

Which layer of the OSI model covers physical cable connections?

A.

Layer 1

B.

Layer 3

C.

Layer 5

D.

Layer 7

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Question # 22

What is the MOST important aspect of fire alarm signaling?

A.

Audibility

B.

Clarity

C.

Reliability

D.

Intelligibility

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Question # 23

For an analog camera, what is the normal frame rate in frames per second?

A.

18 fps

B.

22 fps

C.

27 fps

D.

30 fps

E.

33 fps

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Question # 24

Which of the following is NOT a type of intrusion detection system sensor?

A.

Time-auxiliary

B.

Capacitance

C.

Vibration

D.

Electromechanical

E.

Thermal

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Question # 25

You have just finished a design calling for 15 telecommunications outlets. You received word that the owner has increased his requirements by 40%. What size commercial DD (distribution device) is required to accommodate the increase?

A.

660 mm (26 in)

B.

1015 mm (40 in)

C.

1346 mm (53 in)

D.

1676 mm (66 in)

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Question # 26

You are designing distribution for a seven unit townhouse with in slab conduits. What is the MINIMUM number of 27 mm (1 in) rigid PVC Type 2 or metallic conduit that is required to satisfy distribution to each unit?

A.

Three

B.

Four

C.

Five

D.

Seven

E.

Fourteen

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Question # 27

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?

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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Question # 28

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

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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Question # 29

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

A.

Class 1

B.

Class 2

C.

Class 3

D.

Class 4

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Question # 30

Which class of the system was created to secure a single equipment room (ER)?

A.

Class 1

B.

Class 2

C.

Class 3

D.

Class 4

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Question # 31

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?

A.

2.4 GHz

B.

4.9 GHz

C.

6.0 GHz

D.

11.0 GHz

E.

19.0 GHz

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Question # 32

As a wireless designer, you have been tasked with designing a DAS which supports UHF public safety radios. You have determined that if you increase the power of the base station antenna, you can solve coverage problems in the basement. One of the restrictive items that you should consider is:

A.

A single antenna may not provide the total power multiple antennas may provide

B.

The proper launch amplifier has to be chosen to provide the proper power

C.

The building's wall types may still affect the coverage

D.

The legal limits of the transmitter

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Question # 33

In order to maximize its ability to send and receive, an antenna should be ________ to the desired frequency.

A.

Dipped

B.

Loaded

C.

Tuned

D.

Peaked

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Question # 34

A building can have multiple equipment rooms (ERs) for all of the following reasons EXCEPT:

A.

To provide redundancy

B.

For separate tenants

C.

To house different types of equipment

D.

To serve multiple Access point (APs) and/or Service provider (SPs)

E.

To accommodate office and work space

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Question # 35

When allocating termination space for CAT 6 and optical fiber cables, it is recommended that additional space of up to ________ percent be considered for the routing of the cables and patch cords.

A.

Five

B.

Ten

C.

Twenty

D.

Thirty

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Question # 36

In a telecommunications room (TR), the MINIMUM bottom edge height recommendation for mounting plywood on the wall is ________ above AFF.

A.

51 mm (2 in)

B.

152 mm (6 in)

C.

200 mm (8 in)

D.

305 mm (12 in)

E.

410 mm (16 in)

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Question # 37

You are designing a paging system for a 588 sq m (6325 sq ft) open office space. Due to architectural features of the ceiling, wall mounted speakers must be used. Following the general rule about wall mounted speaker placement, how many speakers should be installed?

A.

Eight

B.

Ten

C.

Twelve

D.

Fourteen

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Question # 38

In a hallway with normal traffic, ceiling mounted speakers should be placed ________ times the corridor height, minus the ________.

A.

Two; average height of listener's ear

B.

Two; width of corridor

C.

Three; average height of listener's ear

D.

Three width of corridor

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Question # 39

You are designing a restaurant located within a retail mall. The ambient noise level of the restaurant is 70 dB. The ambient noise level of the mall common space is 75 dB. What is the MINIMUM sound pressure level (SPL) that should be used when designing the paging system within the restaurant?

A.

70 dB

B.

75 dB

C.

80 dB

D.

85 dB

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Question # 40

Which of the following protocols is referred to under ISO 16484-5?

A.

BACnet

B.

ARCnet

C.

European installation bus

D.

EMSLan

E.

LonMark

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Question # 41

Within a commercial office building of 2300 sq m (25000 sq ft), how many building automation system (BAS) devices are required?

A.

50

B.

75

C.

100

D.

125

E.

150

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Question # 42

What type of facility requires a building automation system (BAS) device to be located every 5 sq m (50 sq ft)?

A.

Hotel guest room

B.

Education classroom

C.

Hospital

D.

Mechanical room

E.

Factory

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Question # 43

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?

A.

Audiovisual system

B.

Staff emergency system

C.

Tone/Visual system

D.

Bedside system

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Question # 44

How much area of wall space is needed in the telecommunications room (TR) to support a nurse call system?

A.

1.2m x 1.2 m (4 ft x 4 ft)

B.

1.2m x 2.4 m (4 ft x 8 ft)

C.

2.4 m x 2.4 m (8 ft x 8 ft)

D.

2.4 m x 3.6 m (8 ft x 12 ft)

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Question # 45

You are designing a nurse call system for a health care facility. The system will have emergency call switches. What is the first step you should take in designing the nurse call system?

A.

Properly size the supporting TR to accommodate the headend system

B.

Program the headend device for the various call switches that will be used

C.

Perform a risk assessment to determine call switch locations

D.

Perform a site survey to verify the pathways that will connect the headend device with the call switches

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Question # 46

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

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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Question # 47

Surge currents due to lightning and other sources MUST be ________ before they penetrate the infrastructure.

A.

Shorted

B.

Maximized

C.

Terminated

D.

Equalized

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Question # 48

The recommended MAXIMUM value for the bonding resistance between the nearest available grounding electrode and the busbar in an entrance facility (EF) is ________ ohms.

A.

0.1

B.

0.5

C.

1

D.

2

E.

5

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Question # 49

One interior TTY must be provided at locations defined as public accommodations with ________ or more pay telephones.

A.

One

B.

Two

C.

Four

D.

Six

E.

Eight

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Question # 50

Coupling with electrical circuits can create inductive interference to telecommunications facilities. Which of the following can decrease the coupling effect?

A.

Decrease the exposure length

B.

Make sure that the single-phase components add in phase

C.

Decrease the physical separation

D.

Increase the earth resistance

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Question # 51

In an office area, a consultant needs to add the location of a fax machine to the plan. What is the approximated floor area that a fax machine occupies?

A.

0.2 sq m (2 sq ft)

B.

0.5 sq m (5 sq ft)

C.

1 sq m (10 sq ft)

D.

1.5 sq m (16 sq ft)

E.

2 sq m (20 sq ft)

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Question # 52

The electromagnetic spectrum of visible light lies in the ___________ frequency range of the spectrum.

A.

1 GHz

B.

100 GHz

C.

10 THz

D.

1 PHz

E.

100 PHz

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Question # 53

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?

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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Question # 54

What is the recommended MINIMUM separation of unshielded twisted-pair (UTP) cables from fluorescent light fixtures?

A.

77 mm (3 in)

B.

30 mm (5.12 in)

C.

203 mm (8 in)

D.

324 mm (12.75 in)

E.

483 mm (19 in)

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