Practice Test Geeks(CBT) Certified Broadcast Technician Practice Test
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Broadcast Networking & IP Systems Flashcards

7 cards from real CBT 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. Which SMPTE standard defines the transport of uncompressed video over IP networks?

    Answer: SMPTE ST 2110

    SMPTE ST 2110 defines the transport of professional media (video, audio, ancillary data) over IP networks using separate essence streams.

  2. In broadcast IP networks, what does PTP stand for and what is it used for?

    Answer: Precision Time Protocol — synchronizing clocks across network devices

    PTP (Precision Time Protocol, IEEE 1588) synchronizes clocks across network devices to sub-microsecond accuracy, which is critical for maintaining timing in IP broadcast systems.

  3. What is the primary advantage of using NMOS (Networked Media Open Specifications) in a broadcast IP facility?

    Answer: It provides standardized device discovery and connection management

    NMOS provides open, vendor-neutral APIs for device discovery (IS-04) and connection management (IS-05), enabling interoperability in IP broadcast environments.

  4. Which network topology is most commonly recommended for professional broadcast IP facilities to ensure redundancy and low latency?

    Answer: Spine-leaf topology

    Spine-leaf topology provides predictable low latency, high bandwidth, and redundant paths, making it ideal for professional broadcast IP networks.

  5. In SMPTE ST 2110, which sub-standard specifically covers uncompressed audio transport?

    Answer: SMPTE ST 2110-30

    SMPTE ST 2110-30 defines the transport of linear PCM audio over IP, while -20 covers video and -40 covers ancillary data.

  6. What protocol does SMPTE ST 2110 use as its underlying transport layer for media streams?

    Answer: RTP over UDP/IP

    SMPTE ST 2110 uses RTP (Real-time Transport Protocol) over UDP/IP because UDP's low overhead and real-time delivery are better suited to live media than TCP's connection-oriented reliability.

  7. What is the purpose of multicast in a broadcast IP network?

    Answer: To send a single stream to multiple receivers simultaneously without duplicating bandwidth at the source

    Multicast allows one sender to deliver a stream to multiple receivers simultaneously, and the network switches/routers handle replication, conserving source bandwidth.