certified-mulesoft-developer-ii sample questions

Question 1

A Mule API is designed to retrieve product catalog information. The backend system that holds this data is slow, and the data only changes once every 24 hours during a nightly batch update. The API is deployed to three CloudHub workers and receives a high volume of requests for the same product data repeatedly. The primary goals are to dramatically improve API response time and reduce the load on the legacy backend. Which caching strategy should be implemented to meet these requirements effectively?
```mermaid
graph TD
subgraph CloudHub VPC
LB[Load Balancer] --> W1[Worker 1]
LB --> W2[Worker 2]
LB --> W3[Worker 3]
end

subgraph Backend
LegacyDB[(Legacy DB)]
end

W1 SharedCache[(Shared Cache)]
W2 SharedCache
W3 SharedCache

Client((Client)) --> LB
```

Accepted Answer

Use a Cache scope configured to use a persistent Object Store (Object Store v2).

Answer

Use a Cache scope with the default in-memory Object Store to cache the response from the backend system.

Answer

Store the catalog data in a variable within the flow and set a watermark to check for updates.

Answer

Implement a custom caching solution using a third-party in-memory data grid like Redis, connected from each worker.

Question 2

A system API that communicates to an underlying MySQL database is deployed to CloudHub. The DevOps team requires a readiness endpoint to monitor all system APIs.Which strategy should be used to implement this endpoint? A.Create a dedicated endpoint that responds with the API status onlyB.Create a dedicated endpoint that responds with the API status and health of the serverC.Create a dedicated endpoint that responds with the API status and reachability of the underlying systemsD.Use an existing resource endpoint of the API

Accepted Answer

Create a dedicated endpoint that responds with the API status and reachability of the underlying systems

Answer

Create a dedicated endpoint that responds with the API status only

Answer

Create a dedicated endpoint that responds with the API status and health of the server

Answer

Use an existing resource endpoint of the API

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