CBT Broadcast Networking & IP Systems

Question 1

Which SMPTE standard defines the transport of uncompressed video over IP networks?

Accepted Answer

SMPTE ST 2110

Answer

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

Question 2

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

Accepted Answer

Precision Time Protocol — synchronizing clocks across network devices

Answer

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.

Question 3

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

Accepted Answer

It provides standardized device discovery and connection management

Answer

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

Question 4

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

Accepted Answer

Spine-leaf topology

Answer

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

Question 5

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

Accepted Answer

SMPTE ST 2110-30

Answer

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

(CBT) Certified Broadcast Technician Practice Test

(CBT) Certified Broadcast Technician Practice Test

CBT Broadcast Networking & IP Systems