Free Practice Questions for the BICSI RCDD Certification RCDD-002 Exam (2026 Updated)

You are designing a telecommunications grounding system for a telecommunications room (TR). The TMGB is located 15 m (50 ft) from the telecommunications rack. What is the MINIMUM AWG of the ground conductor required?

If you are using a building automation system (BAS) protocol operating on RF media at 19,200 b/s in the 868 MHz band, which protocol are you using?

Within a heating ventilation and air conditioning automatic control system, what do the letters DDC stand for?

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

What is the expected lumenance value, in watts, of a 200 watt fluorescent lamp after three years?

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

What is the frequency rating of an International Organization for Standardization/International Electrotechnical Commission (ISO/IEC) Category 7/Class F cable?

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

You are extending 1000 MHz video service from your existing headend to a new equipment room (ER). Your existing incoming video signal is plus (+) 15 dBmV. You have three two-way splitters with a total of minus (-) 15 dB. You are adding 122 m (400 ft) of series 11 (RG 11) cable with a minus (-) 18 dB with eight single end F-connectors with a total of minus (-) 1.2 dB. From the selections below, what is the MINIMUM gain amplifier required in the headend room?

Which of the following is an alarm management output system?

Which of the following is used to create an electronic signal that can be sent to the central nurse call equipment?

You are designing a four story retail mall and multiple sound systems within it. Which system should you design to support general music programming within common retail areas?

Using the sound pressure level (SPL) method of approximating distance and power, calculate the power required to produce 89 dB at 4 m (13.1 ft) with a loud speaker that is rated at a SPL of 95 dB. What input power level (in watts) is required to appropriately power the speaker?

What is the highest typical ambient noise level where audio paging becomes unintelligible?

What element is typically NOT part of a paging system?

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

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?

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

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 conduit?

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

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?

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?

Which service is NOT typical of Grade 1?

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?

What is the appropriate impedance of coaxial cable for use with broadband distribution?

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 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 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 a directional coupler in each floor ' s telecommunications room (TR). Which leg of the coupler will have the LEAST signal loss?

Exhibit:

The following diagram indicates what type of CATV distribution system?

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:

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

Which of the following is true about screened twisted pair cable assemblies?

Cementitious materials are ________ based materials.

A(n) ________ system is considered a mechanical firestop.

A fire ________ is a contained area that is completely enclosed by fire resistant walls, floors, and ceilings.

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

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 the firestops ability to resist breakdown from water damage?

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 outlet boxes that should be installed is:

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

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

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?

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

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?

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?

Premises optical fiber links should be tested:

You have been asked to test and troubleshoot an installed base of cabling that is believed to be causing network problems. You are finding that there are high levels of return loss upon initial testing. What testing will best determine the reasons for these failures?

What type of redundancy provides two additional units, modules, paths, or systems in addition to the MINIMUM required to satisfy the base requirement.

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

You are designing a cabling containment system installed overhead in a new data center. The main or prime purpose of the system will be to manage fiber optic cabling between cabinets. You have a choice of designs of the containment system. In view of the prime purpose of containment system, your first choice of design will be one that:

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?

Color codes for cross-connections fields have been used for many years. Which color is used to identify campus backbone?

Within a data center, if you have a system which includes one extra unit, in addition to the minimum required to satisfy the base need, and where the failure of this unit will NOT disrupt operations, what level of redundancy would this represent?

If a telecommunications grounding busbar is installed in the telecommunications room (TR) with the identifier of 310, located on the third floor, then the telecommunications grounding busbar should be labeled as:

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

A common mode (CM) signal can be converted to a differential mode (DM) signal as a result of a(n):

As a guide, the recommended maximum AC current value on any bonding conductor should be less than ________ amperes.

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

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

Geographically speaking, a __________ covers an area associated with an individual ' s work space.

Which layer of the OSI model covers physical cable connections?

What type of address is 10.162.02.14?

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?

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

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. Where should the sleeves be placed within the room?

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

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:

A security program consists of three independent components. They are electronic, architectural, and:

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?

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

The concept of the " security quandary " is based on providing a balancing act between what two elements?

The three electronic security system (ESS) concepts the consultant needs to understand when creating an ESS system are threats, countermeasures, and:

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

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

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 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?

You are renovating telecommunication rooms that support an acute care facility that has 10,000 sq ft floors. The facility will be adding 15,000 sq ft to each of the floors. What is the MINIMUM additional floor space that you will need to expand the TRs to support the new floor space?

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?

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 possibility of any increased bandwidth demands until they move to their planned future site. The building is not large, and the cable lengths will not exceed 550 m (1804 ft). Your recommendation for the fiber to be installed in the backbone is:

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

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

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

Exhibit:

This diagram illustrates a ______________campus backbone design.

Two sinusoidal signals have the same amplitude (A) and the same frequency (f). They differ in phase by 180 degrees. If these two signals are added together, the result is a sinusoidal signal having an amplitude of:

Which electrical characteristic is displayed with the correct preferred value?

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 transmission media can be accomplished by using a:

A reasonable approximation for the signal speed in 100 ohm balanced twisted pair cable is __________, where c is the velocity of light in free space.

Optical transmitters are typically one of the following types EXCEPT:

Select the appropriate task to complete section 2.2 of the work breakdown structure (WBS) below:

2 Technician

2.1 Install cabling

2.2 __________

2.3 Activate wireless

Between the late 60’s and until 1984, what was the service that was to help architects and engineers better design and implement pathways and spaces in commercial buildings for telephone communications?

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

At the end of the second week of a project, the earned value (EV) of work is $8000 USd and the planned value (PV) of work is $7000 USd. What is true about the project?

What is the PERT estimate (in hours) for project design where:

- Optimistic time is 40 hours

- Most likely time is 50 hours

- Pessimistic time is 60 hours

What is the MINIMUM clearance needed between the front of the telephone booth and any wall or fixture for most installations?

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?

In new construction, what is the percentage of pay phones that must be equipped with volume controls?

Exhibit:

In this future marina layout, what would be the pre-cabling guideline to follow for the terminal A?

Exhibit:

In this future marina layout, assuming that there are fewer than 10 slips being cabled, what would be the pre-cabling guideline to follow for terminal A?

You are placing an entrance cable between two buildings connected by a conduit 205.3 m (588 ft) in length. What would be the MAXIMUM length of unlisted OSP cable that could be used before you terminate the cable or transition it to a listed cable?

You have determined that your underground cable design requires three maintenance holes (MHs). One is 4.3 m (14 ft), one is 6 m (20 ft), and one is 6.7 m (22 ft) in length. How many MH covers are required to serve these MHs?

Buildings larger than ________ must contain a dedicated room for the termination of entrance facilities.

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

The information technology system (ITS) designer should design conduits entering a building from below grade point to extend ________ above finished floor (AFF).

Assume the following:

- An equipment room (ER) consists of 16 racks arranged in 4 equal rows

- The first 4 racks are numbered R1-1 though R1-4

- The second 4 racks are numbered R2-1 through R2-4

- A new equipment shelf with 12 slots is to be installed in the bottom of the third rack in the second row

- Each slot has 2 ports

What would be the identifier of the two ports on the eighth slot of the new equipment shelf?

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

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