Advanced Qualification · A-005 Transmitters, modulation and processing · A-005-008-003
Quelle est l'utilité du contrôle de redondance cyclique ("CRC")?
- ACompression avec perte
- BCorrection d'erreur
- CCompression sans perte
- DDétection d'erreur
Correct answer: D — Détection d'erreur. Question tirée de la banque officielle d'ISDE.
Why
A Cyclic Redundancy Check acts like a digital fingerprint that the receiver calculates to verify if data arrived intact. The full explanation — and one for every question — is in Pro.
Practise this section
Transmitters, modulation and processing is section A-005 of the Advanced exam: Transmitters, modulation and processing: AM, FM, SSB, keying, speech processing, and the numbers behind occupied bandwidth.
Drill A-005 — free, no account