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CPCT Structured Cabling Systems & Infrastructure Flashcards

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

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  1. According to ANSI/TIA-568, what is the maximum allowable horizontal cable length from the telecommunications room to the work area outlet?

    Answer: 90 meters

    TIA-568 limits the permanent link (horizontal cable) to 90 meters, leaving 10 meters for patch cords and equipment cords to form a 100-meter channel.

  2. What is the function of the Main Distribution Frame (MDF) in a structured cabling system?

    Answer: It serves as the central point where outside plant cabling, backbone cabling, and building entrances interconnect

    The MDF (Main Cross-Connect) is the top of the cabling hierarchy where OSP entrance facilities, campus backbone, and building backbone cables terminate and interconnect.

  3. How many pairs does a standard T568B-wired RJ45 patch cord use for 10/100BASE-T Ethernet?

    Answer: 2 pairs (4 conductors)

    10/100BASE-T Ethernet uses only 2 pairs (pins 1,2 for TX and pins 3,6 for RX) of the 4 available pairs in an RJ45 connector.

  4. What does ANSI/TIA-942 govern in the context of structured cabling?

    Answer: Data center telecommunications infrastructure, including cabling, space, and power

    ANSI/TIA-942 defines requirements for data center infrastructure including structured cabling topology, space/layout, power, and cooling for telecommunications facilities.

  5. In a structured cabling system, what is the purpose of a horizontal cross-connect (HC)?

    Answer: To interconnect horizontal cabling from the work area with backbone cabling in the telecommunications room

    The horizontal cross-connect in the telecommunications room is where horizontal cables from work area outlets terminate and connect via patch cords to backbone cables or active equipment.

  6. Which TIA standard defines the color-coding and administration requirements for telecommunications infrastructure?

    Answer: ANSI/TIA-606

    ANSI/TIA-606 is the Administration Standard for telecommunications infrastructure, defining labeling, color-coding, records management, and documentation requirements.