Practice Test Geeks(DCI) Data Cabling Installer Practice Test
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Pathways and Spaces Flashcards

7 cards from real DCI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Pathways and Spaces flashcards as text

  1. According to TIA-569, what is the minimum recommended size for a single-user telecommunications room (TR)?

    Answer: 7 ft × 7 ft (2.1 m × 2.1 m)

    TIA-569 recommends a minimum telecommunications room size of 7 ft × 7 ft (2.1 m × 2.1 m) for serving a single floor or small coverage area.

  2. Which firestopping method uses a flexible foam material that expands when exposed to heat?

    Answer: Intumescent compound

    Intumescent compounds expand significantly when exposed to heat, sealing penetrations to prevent the spread of fire.

  3. In a structured cabling system, what is the maximum recommended horizontal cable run length from the TR to the work area outlet?

    Answer: 90 meters (295 ft)

    The maximum recommended horizontal cable run is 90 meters (295 ft), which leaves 10 meters for patch cords and work area cords within the 100-meter channel limit.

  4. What is the primary advantage of an access floor (raised floor) system in a data center?

    Answer: It provides flexible underfloor cable routing and airflow management

    Access floors provide flexible cable routing pathways beneath the floor and can also serve as a plenum for cold air distribution to equipment.

  5. When running cable through a ceiling plenum, which cable jacket rating is required?

    Answer: CMP (Communications Multipurpose Plenum)

    CMP-rated (plenum-rated) cable must be used in ceiling plenum spaces because it has a low-smoke, flame-retardant jacket meeting NFPA 90A requirements.

  6. What is a 'j-hook' used for in cable pathways?

    Answer: Supporting horizontal cable runs from ceiling structures

    J-hooks are cable support devices that hang from ceiling structures to support and route horizontal cable runs without the need for a full cable tray.

  7. Which of the following locations requires special consideration for electromagnetic interference (EMI) shielding when planning cable pathways?

    Answer: Near elevator motor rooms and electrical panels

    Elevator motor rooms and electrical panels generate significant EMI that can degrade data cable performance, requiring either shielded cable or rerouted pathways.