An organization has an on-premises IT infrastructure. Their customer (Digital Leader)

Correct answer: C) They don't have enough servers to meet the demand.
Here's why:

A) While serverless compute functions can struggle to scale under certain circumstances, this is not directly applicable if the organization is using an on-premises IT infrastructure. Serverless computing is typically associated with cloud services where resources are automatically provisioned and scaled based on demand.

B) Unclean data within the application could potentially cause performance issues or errors, but it's less likely to be the primary cause of repeated failures during peak usage. Data quality issues can impact application functionality and performance, but they are usually addressed through data cleaning processes rather than directly causing application failures.

C) Insufficient server capacity to handle peak usage is a common issue in on-premises environments. If the organization's infrastructure does not have enough servers or computing resources to handle the high volume of incoming requests during peak periods, it can lead to performance degradation, timeouts, or application failures. Scaling up the server capacity or optimizing resource allocation may be necessary to address this issue.

D) The application being only configurable on-premises might limit the organization's ability to scale or optimize performance, but it's less likely to be the direct cause of repeated failures during peak usage. Configuration limitations may contribute to performance issues, but they are typically not the primary cause of application failures.

Therefore, C) They don't have enough servers to meet the demand is the most likely cause of the customer-facing application repeatedly failing during peak usage in an organization with an on-premises IT infrastructure. Increasing server capacity or optimizing resource allocation can help address this issue and improve application performance during peak periods.