DCI - Data Cabling Installer Pathways and Spaces Questions and Answers

Question 1

According to the ANSI/TIA-569 standard, which of the following is a primary requirement for a Telecommunications Room (TR)?

Accepted Answer

The room must be dedicated solely to telecommunications functions.

Answer

It must contain a false ceiling to hide overhead pathways.

Answer

It should be located on an exterior wall for easier access.

Answer

A minimum of one 120V 15A electrical circuit is required.

Question 2

An installer is running new data cables through a fire-rated wall. What is the most critical action to take after creating the penetration?

Accepted Answer

Install an approved firestopping system to restore the barrier's rating.

Answer

Label the cables on both sides of the wall immediately.

Answer

Bundle the new cables neatly with zip ties inside the wall opening.

Answer

Ensure the opening is large enough for future cable additions.

Question 3

When planning a horizontal cable pathway using cable trays, what is a key consideration to prevent signal degradation in data cables?

Accepted Answer

Ensuring separation between data and power cables.

Answer

Filling the tray to maximum capacity to save space.

Answer

Using the shortest possible route, even if it introduces sharp bends.

Answer

Securing cable bundles with overtightened zip ties to prevent movement.

Question 4

A data cabling installer needs to create a pathway between two telecommunications rooms that are not vertically aligned on adjacent floors. Which of the following would be the most appropriate backbone pathway?

Accepted Answer

A minimum of one 3-inch trade size conduit.

Answer

A single, un-supported catenary wire.

Answer

An open-top cable basket run through the elevator shaft.

Answer

Flexible conduit laid on top of a suspended ceiling grid.

Question 5

Which of the following describes an intumescent firestop product?

Accepted Answer

A material designed to swell and expand when exposed to high temperatures.

Answer

A material that develops a hard char when exposed to heat.

Answer

A product that absorbs heat through a chemical reaction.

Answer

A putty-like substance that remains soft to allow for easy re-entry.

Question 6

During a new installation in a data center, the plan calls for overhead cable trays. To ensure long-term reliability and allow for future growth, what is the maximum recommended cable tray fill ratio according to the National Electrical Code (NEC)?

Accepted Answer

50%

Answer

75%

Answer

100%

Answer

60%