How does EMRE ensure system reliability during peak usage times?

The reason why employing scalable infrastructure and backup systems is the correct choice lies in the fundamental principles of system reliability and performance under load. Scalable infrastructure allows the system to adjust seamlessly to fluctuating demand, which is crucial during peak usage times when the volume of users or data processing increases significantly.

With scalable infrastructure, resources can be dynamically allocated or expanded based on current needs. This means that during periods of high traffic, additional servers or processing power can be brought online to ensure consistent performance, preventing bottlenecks and reducing the likelihood of system failures.

Backup systems also play a critical role in maintaining reliability. They provide redundancy and ensure that if one part of the system fails, another can take over, thus minimizing downtime and maintaining continuous service. By having both scalable infrastructure and reliable backup systems in place, EMRE creates a robust framework capable of sustaining operations even when demand peaks.

In contrast, the other options wouldn't achieve the same level of reliability during high demand. Manual data processing can lead to delays and errors, increased staffing can alleviate some strain but doesn't scale as effectively, and limiting access may prevent overload but does not address the need for system resilience or reliability ultimately.