Practice Test Geeks(VDV) Voice Data Video Technician Certified Practice Test
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Testing and Certification Flashcards

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

Read the first 7 Testing and Certification flashcards as text

  1. A technician is testing a coaxial video distribution system and finds the signal level at the last outlet is 6 dB below the minimum required level. What is the most appropriate corrective action?

    Answer: Install an amplifier or distribution amplifier at an appropriate point in the signal chain

    Installing a distribution amplifier at a strategic point in the signal chain compensates for cable and splitter losses to restore adequate signal levels at all outlets.

  2. What does it mean when a cable tester reports an 'open' fault 23 meters from the near end?

    Answer: A conductor has a break or disconnection at approximately 23 meters

    An open fault indicates a break in the conductor at the reported distance, preventing signal continuity beyond that point.

  3. When performing Tier 2 fiber optic testing, what additional measurement does it provide beyond Tier 1?

    Answer: OTDR traces showing event locations and individual span losses

    Tier 2 testing adds OTDR measurements to the basic Tier 1 insertion loss results, providing detailed event location, splice loss, and connector loss information along the fiber span.

  4. A VDV technician must certify a Cat 5e horizontal link for Gigabit Ethernet. Which pair of test parameters is most critical to verify?

    Answer: Insertion loss and NEXT at a minimum, as part of a full suite per TIA-568-C.2

    Full certification for Gigabit Ethernet on Cat 5e requires a complete test suite including insertion loss, NEXT, ELFEXT, return loss, and propagation delay per TIA-568-C.2.

  5. What is the significance of the 'loss budget' in a fiber optic link design and testing?

    Answer: The maximum allowable total attenuation from source to receiver for reliable operation

    The loss budget defines the maximum total dB loss a fiber link can have while still allowing the receiver to operate reliably, accounting for all connectors, splices, and cable attenuation.

  6. During structured cabling certification, what is the maximum permanent link length for Cat 6 horizontal cabling per TIA-568-C.2?

    Answer: 90 meters

    The permanent link (horizontal cable only, excluding patch cords) is limited to 90 meters, with the remaining 10 meters allocated for equipment and work area patch cords in the 100-meter channel.

  7. A technician is certifying a fiber installation and the OTDR shows a splice loss of 0.4 dB at a fusion splice. How does this compare to industry standards?

    Answer: It exceeds the typical 0.3 dB maximum for fusion splices

    The industry standard for fusion splice loss is typically 0.3 dB maximum, so a 0.4 dB reading exceeds this limit and may require the splice to be redone.