Which statement describes the primary benefit of a redundancy plan for critical sensors?

• A. To maintain continuous monitoring and minimize downtime during maintenance or failure.
• B. To increase false alarms.
• C. To complicate maintenance scheduling.
• D. To reduce data reliability.

Answer: (A)

Redundancy for critical sensors is all about keeping monitoring active even when one sensor fails or is undergoing maintenance. By having spare or parallel sensors and an automatic failover, the system can switch to a healthy sensor without pausing data collection. That means you maintain continuous visibility into the monitored environment and avoid gaps in data that could hide issues or delay responses. The big payoff is reliability and availability: downtime is minimized because monitoring continues through transitions. Reducing data reliability or increasing false alarms would undermine safety and trust in the system, so they aren’t benefits.