Question 1

You have the responsibility of designing a railroad track crossing for an outside plant OSP cable. There are three separate railroad tracks to be crossed. The measurement between the center of the two outer tracks is 16 m (52 ft). Using the standard track width of 1435 mm (4 ft 8.5 in), what is the length of the rigid steel conduit required to facilitate the crossing?

Accepted Answer

A)  20 m (66 ft) 
B)  25 m (82 ft) 
C)  31 m (102 ft) 
D)  35 m (115 ft) 
E)  40 m (130 ft)

Question 2

What is the insertion loss guideline for a multimode mechanical splice?

Accepted Answer

A)  0.05 dB 
B)  0.1 dB 
C)  0.3 dB 
D)  0.5 dB 
E)  1.0 dB

Question 3

A backbone star topology shall have no more than______ level(s) of cross-connections.

Accepted Answer

A)  One 
B)  Two 
C)  Three 
D)  Four 
E)  Five

Question 4

When balanced twisted-pair copper cabling, return loss is a measurement of the:

Accepted Answer

A)  Worst case difference in magnitude between the expected insertion loss and the actual measured insertion loss 
B)  Reflection of signal power resulting from the insertion of a device in a transmission line (in d
B)  
C)  Signal coupling between any two pairs along the entire length of the cabling 
D)  Loss in signal resulting from the insertion of a component, of link, or channel, between a transmitter and a receiver 
E)  Time required for a signal to travel from one end of the transmission path to the other end

Question 5

The potential for ______ occurs when devices or systems share a common electromagnetic environment and their operational frequencies overlap.

Accepted Answer

A)  Electromagnetic interference (EMI) 
B)  (EM
C)  
C)  Radio frequency interference (RFI) 
D)  Fast transients 
E)  Electrostatic discharge (ES
D)

Question 6

A furniture cluster with 26 requires a MINIMUM of how many multiuser telecommunications outlet assembly (MUTOA)?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 7

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

Accepted Answer

A)  Tight-buffer 
B)  Loose-tube 
C)  Breakout style 
D)  Duplex zip cord 
E)  Ribbon

Question 8

The ITU-T G.711 standard deals with what aspect of video conferencing?

Accepted Answer

A)  Coding and compression 
B)  File transfer during video conference 
C)  Call control during video conference 
D)  Voice compression during video conferencing

Question 9

The average power consumption in a telecommunications room (TR) is 2260 watts per hour. What is the heat dissipation in BTUs?

Accepted Answer

A)  7096 BTU 
B)  7713 BTU 
C)  8104 BTU 
D)  8511 BTU

Question 10

Exhibit:  This diagram illustrates a ______________campus backbone design.

Accepted Answer

A)  Hierarchical star 
B)  Ring topology 
C)  Bus topology 
D)  Inverted star 
E)  Collapsed ring

Question 11

What is the worst case acceptance value for attenuation when testing 2000 m (6562 ft) of 50/125 multimode fiber at a wavelength of 1300 nm when the fiber has 2 connector pairs and 3 splices?

Accepted Answer

A)  3.4 dB 
B)  4.65 dB 
C)  5.4 dB 
D)  6.4 dB 
E)  9.4 dB

Question 12

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:

Accepted Answer

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

Question 13

All of the following are considered market or regional conditions that can impact construction costs EXCEPT:

Accepted Answer

A)  Displacement and relocation 
B)  Construction time frame 
C)  Other large projects in the area 
D)  Seasonal effects on construction costs

Question 14

If you have a data center where the entire infrastructure must be completely shutdown on an annual basis to perform preventative maintenance and repair work, what tier level would this represent?

Accepted Answer

A)  Tier I 
B)  Tier II 
C)  Tier III 
D)  Tier IV

Question 15

What is the MINIMUM number of outside building terminal pedestals required to serve a single story office, or office warehouse structure that has ten 18.3 m x 24 m (60 ft x 80 ft) units and the total building length is 183 m (600 ft)?

Accepted Answer

A)  One 
B)  Two 
C)  Four 
D)  Six 
E)  Ten

Question 16

What are the three typical voltages used in centrally amplified paging systems?

Accepted Answer

A)  24, 48, and 90 
B)  25, 70, and 100 
C)  25, 90, and 120 
D)  48, 90, and 120

Question 17

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

Accepted Answer

A)  N 
B)  N+1 
C)  N+2 
D)  2N 
E)  2(N+1)

Question 18

The recommended MINIMUM number of conduits connecting two located on the same floor is:

Accepted Answer

A)  One; 75 mm (trade size 3) 
B)  Two; 75 mm (trade size 3) 
C)  One; 100 mm (trade size 4) 
D)  Two; 100 mm (trade size 4)

Question 19

In a run requiring 15 m (50 ft) of cable between the floor distributor and the consolidation point, the MAXIMUM length of cable allowed between the CP and the telecommunications outlet is:

Accepted Answer

A)  27.4 m (90 ft) 
B)  36.5 m (120 ft) 
C)  45.8 m (150 ft) 
D)  75 m (242 ft) 
E)  90 m (295 ft)

Question 20

On a survey of one of your client's buildings, you discover that one of the TRs, housing a considerable quantity of switching equipment, is at 25 degrees C (77 degrees F) with a relative humidity of 59 percent. This is considered to be:

Accepted Answer

A)  Within the normal range of temperature and humidity 
B)  High temperature and normal humidity 
C)  Normal temperature and high humidity 
D)  High temperature and high humidity

Exam 1: BICSI Registered Communications Distribution Designer - RCDD