CBT CBT Studio Production Technology

Question 1

What does a routing switcher (router) do in a broadcast facility?

Accepted Answer

Connects any input source to any output destination under software control

Answer

Switches between on-air program sources during live production

Answer

Routes IP network traffic between broadcast devices

Answer

Switches between primary and backup transmitters

Question 2

What is the purpose of a house sync (black burst or tri-level sync) signal in a broadcast facility?

Accepted Answer

Synchronizes all video equipment to a common timing reference

Answer

Provides a color reference for color correction monitors

Answer

Acts as a backup black signal for unused inputs

Answer

Provides genlock for satellite receivers

Question 3

What is a frame synchronizer used for in broadcast?

Accepted Answer

To synchronize an asynchronous incoming signal to the facility's house sync

Answer

To correct lip sync errors in live productions

Answer

To convert between interlaced and progressive scan formats

Answer

To buffer video for time-delay broadcast compliance purposes

Question 4

What does SMPTE timecode provide in broadcast production?

Accepted Answer

An absolute time address (hours:minutes:seconds:frames) for every video frame

Answer

A quality control identifier embedded in the video signal

Answer

A synchronization reference for audio sample clocks

Answer

A watermark to identify broadcast content origin

Question 5

What is the difference between drop-frame and non-drop-frame SMPTE timecode?

Accepted Answer

Drop-frame skips certain frame numbers to keep timecode aligned with real clock time at 29.97 fps

Answer

Drop-frame physically removes frames from the video to reduce file size

Answer

Non-drop-frame is used only for film at 24 fps

Answer

Drop-frame is used for live broadcasts only, non-drop for editing

Question 6

In a broadcast facility, what is a production switcher (vision mixer) primarily used for?

Accepted Answer

Selecting and transitioning between sources for on-air program output

Answer

Distributing signals to multiple destinations simultaneously

Answer

Converting analog sources to digital for routing

Answer

Monitoring all facility signals simultaneously