The NMEA 2000 backbone data rate is 250K bits per second.

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Multiple Choice

The NMEA 2000 backbone data rate is 250K bits per second.

Explanation:
The backbone data rate for NMEA 2000 is fixed at 250 kilobits per second. This CAN-based speed is defined by the standard to provide reliable multi-node communication on a single backbone in the noisy marine environment, while keeping wiring practical. Other common CAN speeds (like 125K or 500K) aren’t the NMEA 2000 backbone rate and would either undercut throughput or diverge from the specification, and 1M would be unnecessary or unsupported. So the correct rate is 250K bits per second.

The backbone data rate for NMEA 2000 is fixed at 250 kilobits per second. This CAN-based speed is defined by the standard to provide reliable multi-node communication on a single backbone in the noisy marine environment, while keeping wiring practical. Other common CAN speeds (like 125K or 500K) aren’t the NMEA 2000 backbone rate and would either undercut throughput or diverge from the specification, and 1M would be unnecessary or unsupported. So the correct rate is 250K bits per second.

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