Practice Test Geeks(VDV) Voice Data Video Technician Certified Practice Test
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Network Systems Integration 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 Network Systems Integration flashcards as text

  1. Which wireless frequency band typically provides longer range but lower throughput compared to 5 GHz?

    Answer: 2.4 GHz

    The 2.4 GHz band propagates farther and penetrates walls better than 5 GHz but offers fewer non-overlapping channels and lower maximum data rates.

  2. In a VoIP system, what is the recommended maximum one-way latency for acceptable voice quality?

    Answer: 150 ms

    ITU-T G.114 recommends a maximum one-way delay of 150 ms for acceptable voice quality in VoIP communications.

  3. What type of network topology connects each device directly to a central hub or switch?

    Answer: Star

    In a star topology, all devices connect to a central switch or hub, making troubleshooting easier since a failed link only affects one device.

  4. Which standard governs the installation of structured cabling systems in commercial buildings in the United States?

    Answer: TIA-568

    TIA-568 (Telecommunications Cabling Standard) specifies requirements for structured cabling systems in commercial buildings, including cable types, connectors, and installation practices.

  5. When integrating a new IP camera into an existing network, what feature allows the switch port to supply power to the camera without a separate power supply?

    Answer: PoE

    Power over Ethernet (PoE) delivers electrical power through Ethernet cables, eliminating the need for separate power supplies for IP cameras and other devices.

  6. What is the function of a patch panel in a structured cabling system?

    Answer: It provides a centralized termination point for horizontal cabling

    A patch panel provides a centralized point where horizontal cabling from work areas terminates, allowing flexible cross-connections using patch cords in the telecommunications room.

  7. Which OSI layer is responsible for end-to-end error recovery and flow control in network communications?

    Answer: Layer 4 (Transport)

    The Transport layer (Layer 4) provides end-to-end communication services including reliable data transfer, error recovery, and flow control using protocols like TCP.