Extra exam question E2B01
Subelement E2, OPERATING PROCEDURES· Group E2B
In digital television, what does a coding rate of 3/4 mean?
- A.25% of the data sent is forward error correction data (correct answer)
- B.Data compression reduces data rate by 3/4
- C.1/4 of the time interval is used as a guard interval
- D.Three, four-bit words are used to transmit each pixel
WhyA digital television coding rate of 3/4 means 25 percent of the transmitted data is forward error correction overhead. A digital television coding rate of 3/4 means that for every 4 bits transmitted, only 3 carry actual picture data and the remaining 1, or 25%, is forward error correction overhead added to let the receiver detect and correct transmission errors, answer A. It isn't a data compression ratio, a guard-interval fraction, or a description of how many bits represent each pixel, those are separate parameters in a digital TV signal.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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