RCDD (RCDD): Network Design Principles and Practice 5

Question 1

An RCDD is designing an entrance facility (EF) for a campus building. Which function is the EF NOT intended to perform?

Accepted Answer

Serve as the primary work area outlet location for end users

Answer

The entrance facility is an infrastructure space for service provider demarcation and outside-to-inside plant transition, not a location for end-user work area outlets.

Question 2

What is the primary purpose of the telecommunications bonding backbone (TBB) in a multi-story building?

Accepted Answer

Provide a low-impedance path connecting telecommunications grounding busbar (TGBS) on each floor

Answer

The TBB interconnects the telecommunications grounding busbars on each floor to the telecommunications main grounding busbar (TMGB), creating a single-point bonding reference per TIA-607.

Question 3

A designer must choose between using individual conduits versus cable trays for a high-density data center backbone. Which advantage is specific to open cable trays?

Accepted Answer

Easier future capacity additions and cable management

Answer

Open cable trays allow easy addition, removal, and rerouting of cables without pulling new conduit, which is a major operational advantage in dynamic data center environments.

Question 4

When calculating the number of telecommunications outlets required per ANSI/TIA-568, what is the minimum number of outlets specified for each individual work area?

Accepted Answer

Two outlets or one outlet with two ports

Answer

TIA-568 requires a minimum of two telecommunications outlets (or one two-port outlet) per work area to support both voice and data simultaneously.

Question 5

In a fiber optic loss budget, which value represents the maximum allowable attenuation for a specific application and determines if a proposed cable plant design will work?

Accepted Answer

System gain or link power budget

Answer

The link power budget (system gain) equals the difference between transmitter output and receiver sensitivity, defining the maximum tolerable loss the cable plant can introduce.

RCDD - Registered Communications Distribution Designer Practice Test

RCDD - Registered Communications Distribution Designer Practice Test

RCDD (RCDD): Network Design Principles and Practice 5