RCDD Exam Questions

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?

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

When designing a backbone distribution system, you are asked to include a combination of media types. Your choice of media types include:

Optical fiber all-dielectric cables have an additional advantage over ones containing a steel strength member. That advantage is:

When designing a fiber backbone using cable with an armored sheath, a major consideration that you must address is:

In the customer's environment, an ITS designer should avoid the need for optical fiber field splicing by:

A campus backbone design linking two buildings requires that you install a high-fiber-count cable very quickly, using the conduit system provided. Cost is not so much an issue as u...

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

An installation crew is pulling an optical fiber cable into a riser. The cable has an outside diameter of 25 mm (1 in). As the cable is being pulled off the reel and through a pull...

When reviewing a backbone distribution system within a building provided to you for standards compliance, you see that there are several cables with bridge taps built in. Which one...

When designing a campus distribution system involving small buildings with only one horizontal cross-connect (HC) [Floor distributor (FD)] per building, you can eliminate the need...

You have been asked to design a backbone cable connecting two large campus buildings. Your pathways will include using conduits, maintenance holes, and one section of 100 m (328 ft...

You are reviewing a building backbone design with a vertically aligned telecommunications room (TR). In the spec you note in a footnote with details that the slots at one end of th...

When designing a backbone distribution system, you will need to include a telecommunications enclosure (TE). A TE can be defined as a:

You have been asked to project manage a fiber cable backbone installation. In the course of the installation, you notice the fiber cable with a 25 mm (1 in) outside diameter is bei...

One advantage of using preconnectorized jumpers and cables is:

In reviewing your client's network needs for today and 5 years into the future, you note their current specs call for a 1Gb/s network within a campus environment, with little or no...

When installing a heavy backbone cabling vertically, recommended methods of securing the cable include all of the following EXCEPT:

Rack mounted hardware is installed in two standard sized racks or cabinets. Those sizes are:

This diagram illustrates a ______________campus backbone design.

Multimode optical fiber is generally used for campus or building applications due to the ability to use cost effective:

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

You have determined that the equipment room (ER) you are designing will be the minimum size of 15 sq m (160 sq ft) and is servicing 80 but architectural changes will add 175 , whic...

If the usable floor space is unknown, then deduct ________ percent of the total area available to estimate the usable area.

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

"A single outlet utilizing a dedicated phase, neutral, and ground conductor" is the definition for which of the following?

In addition to voice and data services, an equipment room (ER) can be designed to include all of the following EXCEPT:

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...

You are placing two 423 mm (19 in) relay racks with a 152 mm (6 in) vertical management panel on each end and a 12 in vertical cable management panel between the racks. The rack li...

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...

A building has a floor space of 16.7 m (55 ft) by 45 m (150 ft) with a common core measuring 9.17 m (30 ft) by 13.7 m (45 ft). How many individual can be provided in the usable flo...

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 re...

At a minimum, convenience receptacles in an ER or TR are to be located ________ AFF.

You have been selected to do the telecommunications design on a new, single story building. The architect requires the size and location of the telecommunications rooms so their bu...

The MINIMUM recommended lighting requirement in a telecommunications room (TR) at the point of cable terminations is:

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

What is the MINIMUM ceiling height of a telecommunications room?

You are recommending to an architect the location within a telecommunications room for the placement of floor sleeves connecting to the telecommunications room directly below. Wher...

The recommended ratio of patch panels to horizontal cable management panels is ________ RU of patch panel to ________ rack unit (RU) of horizontal cable management panel.

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

You are working on the design of a new, large ER/TR that will contain many racks and data cabinets including a large UPS system. Your recommendation to the architect for room acces...

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

In a telecommunication room (TR), the ________ is the facility used to make cross connections from the backbone cable to the horizontal cable.

You are designing a firestop system for a boiler room that will have conduits coming from the service provider maintenance hole into the building. Which test rating will address th...

Which of the following is a nonmechanical firestop system?

Firestop ________, in conjunction with steel wedging plates, go in a steel cable tray.

The F rating for a framed wall/stud wall is ________ hour(s).