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 Service Request Processor for Asynchronous Processing:

Configuring a REST service to run asynchronously using a service request processor ensures that the service runs without making the external application wait. The system returns a unique identifier instantly and processes the request in the background.

 References:

Pega's best practices for REST services and asynchronous processing recommend using service request processors for handling long-running processes.

 Therefore, the correct answer is:

B. A REST service that runs asynchronously by using a service request processor.

 The Adaptive Model decision component automatically computes a property called Propensity.

 Propensity is the likelihood or probability that a particular action will result in the desired outcome.

 This property is used to rank and prioritize decisions based on predicted customer behavior.

When deciding between a wait shape and an assignment with an SLA, consider the following requirements where a wait shape is simpler:

Adjust the Case Urgency: The wait shape allows you to adjust the urgency of a case when the wait condition is defined, which is simpler than configuring an SLA.

Manual Override: The wait shape provides an option to manually step past the waiting point if necessary, making it more flexible for certain scenarios.

References:

Wait Shape

Service Level Agreements

To isolate database-related performance issues:

Investigate when the database is used most heavily (B): Understanding peak usage times can help pinpoint when the database is under the most strain. This information is crucial for identifying potential bottlenecks and optimizing performance.

Lower query-time-related alert thresholds (C): By lowering the alert thresholds for query times, you can capture more detailed information about slow-running queries, helping to identify and address inefficient database operations.

References:

Pega Performance: Database Performance and Tuning

Pega Alerts: Configuring Alerts and Thresholds