RCDD Free Sample Questions

A hospital is upgrading its patient monitoring system, which requires two Category 6A cables and one OM4 duplex fiber optic cable to be run to each of 75 patient rooms from a new Telecommunications Room (TR). The design specifies 76mm (3-inch trade size) conduits for horizontal pathways. According to TIA-569-D, and assuming a standard outside diameter for these cables, what is the maximum number of these three-cable bundles that can be installed in a single conduit without exceeding the 40% fill ratio?

During the design of a multi-tenant commercial high-rise, the RCDD is planning the Telecommunications Bonding Backbone (TBB). The building is 20 stories tall, and each floor has its own Telecommunications Room (TR). Which of the following TBB designs provides the MOST effective and compliant high-frequency bonding path per TIA-607-D? ASCII Diagram of Bonding Paths: Option A: Single Large Conductor TMGB ---> TGB(F1) ---> TGB(F2) ---> ... ---> TGB(F20) (Daisy-Chain) Option B: Multiple Parallel Conductors TMGB ---> TGB(F1) TMGB ---> TGB(F2) ... TMGB ---> TGB(F20) (Home-Run) Option C: Looped Backbone TMGB ---> TGB(F1) ---> ... ---> TGB(F20) ^--------------------------------| (Loop back to TMGB) Option D: Bonding to Building Steel TMGB ---> Building Steel <--- TGB(F1) <--- TGB(F2) <--- ... <--- TGB(F20)

A project requires the installation of a Category 6A cabling system in a hospital's new imaging wing, which houses MRI and CT scanning equipment. The RCDD must select a cable type that minimizes the risk of electromagnetic interference (EMI) impacting data transmission. Which cabling system component is specifically designed to mitigate external noise coupling from sources like high-power medical equipment? (Select TWO)

True or False: According to the TDMM, when designing a telecommunications space, the final floor finish should be installed prior to the installation of racks and cabinets to ensure a sealed, dust-controlled environment.

An RCDD is reviewing the project closeout documentation submitted by a cabling contractor. The contractor has provided permanent link test results for a Category 6A system. The designer notices that several tests show a passing result for NEXT, but the headroom is less than 1 dB. What is the most appropriate action for the RCDD to take?

A university is constructing a new research building and the design includes a large, open-ceiling laboratory space. The RCDD needs to specify a horizontal pathway system that provides maximum flexibility for future changes and additions of network drops. The ceiling height is 5 meters (16 feet). Which pathway solution is most suitable for this environment?

The NEC and TIA standards require that abandoned communications cable be ______. What is the missing word?

An RCDD is designing a fiber backbone for a corporate campus. The link must support 40GBASE-SR4 Ethernet between two buildings. The total channel length is 280 meters. Which of the following multimode fiber types meets the minimum requirement for this application? Reference Table: | Standard | Wavelength | Max Channel Length (OM3) | Max Channel Length (OM4) | Max Channel Length (OM5) | |--------------|------------|--------------------------|--------------------------|--------------------------| | 10GBASE-SR | 850 nm | 300 m | 400 m | 400 m | | 40GBASE-SR4 | 850 nm | 100 m | 150 m | 150 m | | 100GBASE-SR4 | 850 nm | 100 m | 150 m | 150 m | | 100GBASE-SR10| 850 nm | 100 m | 150 m | 150 m |

A contractor performing a firestop installation for telecommunications pathways through a 2-hour fire-rated concrete wall must ensure the installation is compliant. Which of the following are essential for a compliant firestop system installation? (Select THREE)

Case Study: A financial services firm is consolidating two offices into a new 50,000 sq. ft. facility. The firm has strict requirements for network uptime and security. They require full redundancy for their backbone cabling connecting the Main Equipment Room (ER) to three Intermediate Distribution Frames (IDFs), which are located in separate fire-rated Telecommunications Rooms (TRs). The RCDD is tasked with designing the backbone pathway infrastructure. The primary design goal is to ensure that a single point of failure, such as a fire or physical damage in one pathway, will not sever connectivity to any IDF. The building has two physically separate, fire-rated riser shafts available for use. Which backbone pathway design best meets the client's redundancy requirements?