Salesforce Updated Integration-Architect Exam Questions and Answers by alanna

Change Data Capture (CDC) is the best option to meet the requirement. CDC is a type of streaming event that notifies subscribers of changes to Salesforce records, such as creation, update, delete, and undelete operations. By subscribing to CDC events for the course registration data, the LMS can receive real-time updates and sync with Salesforce. Streaming API is another type of streaming event that notifies subscribers of changes to Salesforce records that match a SOQL query. However, Streaming API has some limitations, such as not supporting all SOQL features and not capturing delete and undelete operations. Platform Event is a type of streaming event that delivers custom notifications within the Salesforce platform or from external sources. Platform Event is not suitable for this requirement because it is not tied to Salesforce records and requires custom logic to publish and subscribe. Outbound Message is a workflow action that sends SOAP messages with field values to designated endpoints. Outbound Message is not suitable for this requirement because it does not support complex data types, such as sObjects or collections.

Middleware should coordinate request delivery and payment processing, and Payment System should process a payment request only once. This solution ensures that each payment request is delivered to the Payment System in a reliable and consistent manner,and avoids duplicate or conflicting updates to the same Payment Request record. Middleware can act as a mediator between the Data Entry Point and the Payment System, and implement logic to handle errors, retries, and acknowledgments. Payment System can usethe globally unique identifier to check if a payment request has already been processed, and avoid processing it again. References: Certification - Integration Architect- Trailhead, [Integration Patterns and Practices]

A microservice architecture is a way of designing software applications as a collection of loosely coupled services, each of which implements a specific business function.Microservices enable modularity, scalability, and agility in software development, as well as easier testing and deployment. By breaking up the monolithic web service into smaller pieces, each responsible for a single integration, UC can decouple the systems and improve the performance of the integrations. For example, UC can use Salesforce Platform Events to publish and subscribe to events from Salesforce to the legacy billing application, the ERP application, and the data lake. This way, UC can avoid point-to-point integrations and leverage an event-driven architecture that reduces coupling and increases reliability12.

The other options are not as effective as option B. Option A does not address the root cause of the tight interdependencies between systems, and may not result in significant performance improvement. Option C may improve the throughput of data loading into Salesforce, but it does not solve the problem of coupling between systems. Option D mayreduce the latency and maintenance costs of the web service, but it does not change the design of the web service or the integrations.