RCDD Exam Questions

All of the following are nominal wavelengths for laser light sources EXCEPT:

Wave division multiplexing (WDM) is most similar to:

The public telephone system is an example of a __________ system.

A video camera has a coaxial cable output. The video signal is to be distributed to devices that have balanced twisted pair inputs. The transition between these two different trans...

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

Which of the following is NOT a form of signal coupling between two (2) circuits?

During a site survey you notice that several CRT displays in the vicinity of the engineering copy center have sporadic visual distortion. What is the MOST likely cause?

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?

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

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?

The ability of a device to withstand electromagnetic disturbances from another device is:

Which of the following is NOT a source of electromagnetic interference (EMI)?

Which of the following is NOT a design consideration for broadband video distribution?

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

You must extend a video systems backbone coax cable that was recently installed. Which of the following coaxial cable types would provide the best performance for both analog and d...

This type of cable is an unbalanced system:

The ability of a conductors insulation to transmit an electric field is called:

What is the International Organization for Standardization/International Electrotechnical Commission ISO/IEC class rating for American National Standards Institute/Telecommunicatio...

An open office design is made up of three furniture clusters and contains a total of nine. How many multiuser telecommunications outlet assemblies (MUTOA) should be in the design?

A telecommunications outlet/connector may be provided using all listed below EXCEPT:

The MINIMUM separation distance between grounded metal telecommunications pathway and unshielded power lines is:

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, wit...

Which of the following is NOT an example of a perimeter pathway?

When installing outlet boxes in ten private offices in an area which may prove to be difficult to install future additional telecommunications outlets, the MINIMUM quantity of outl...

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

Which of the following is NOT true about consolidation points?

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 ou...

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

From a 1000 ft (305 m) roll of optical fiber, how many MAXIMUM length centralized optical fiber cabling runs can be made?

Perimeter raceway systems should be used primarily for:

Which of the following is true when describing slip sleeves or gutters?

You are designing a horizontal pathway system where you will provide 100 mm (4 in) conduit and pull boxes. The building architectural elements will only allow for a single layer of...

Which of the following is NOT considered acceptable in an information technology system (ITS) conduit design and installation?

Using the "pathway design" for horizontal cable distribution, how many cable runs are placed to serve 15 individual?

The MINIMUM finished height of access flooring in a general office area is:

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

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

A conduit run is installed from the ER to a TR. It has two (2) 90 degree bend and a length of 20 m (65 ft). What will be the MINIMUM test rating of the pull cord left in the condui...

When placing an optical fiber cable in the horizontal optical fiber cabling subsystem, what is the MAXIMUM number of splices that can be used?

An existing ceiling raceway system has 115,000 sq mm (177 sq in) of cross-sectional area available for distribution of cable runs. How many can be served by the existing system?

In the ceiling zone method of distribution, the usable floor area should be divided into zones each measuring:

Which of the following is NOT an advantage of access floor systems?

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...

Cables are installed in a ceiling in a straight line. The ceiling run is 60 m (200 ft) in length. What is the MINIMUM number of J-hooks required to support the cables?

When designing a connection to an outlying building you decide to choose a physical ring. Your primary reason for considering a physical ring is:

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

The maximum vertical rise is the distance over which the cable is vertically self-supporting. This distance is a function of the weight of the cable and the:

You are given a choice of methods of routing backbone cabling vertically through a building. The one option that you do NOT want to use is:

This diagram illustrates an example of a:

Which of the following statements best describes what a backbone distribution system typically provides?