PL 400 Implement Power Platform Integrations 4 — Questions and Answers
Question 1: Which Azure resource enables Power Platform to call an on-premises SOAP web service without exposing it to the public internet?
- Azure API Management with self-hosted gateway
- On-premises data gateway with custom connector (Correct answer)
- Azure Relay hybrid connection
- Azure Application Gateway
Correct answer: On-premises data gateway with custom connector
The on-premises data gateway paired with a custom connector securely tunnels calls to internal SOAP services without requiring inbound firewall rules.
Question 2: When implementing event-driven integration from Dataverse to an external system, which feature publishes Dataverse events to Azure Service Bus or Event Hub?
- Dataverse plug-in
- Service endpoint (service endpoint registration) (Correct answer)
- Power Automate automated flow
- Azure Data Factory connector
Correct answer: Service endpoint (service endpoint registration)
A Dataverse service endpoint registration configures the platform to push entity events directly to Azure Service Bus, Event Hub, or Event Grid.
Question 3: What is the maximum timeout for a synchronous HTTP response in a Power Automate flow triggered by 'When an HTTP request is received'?
- 30 seconds (Correct answer)
- 2 minutes
- 5 minutes
- 10 minutes
Correct answer: 30 seconds
The synchronous response to an HTTP trigger must be sent within 30 seconds; otherwise the caller receives a 202 Accepted and must poll for results.
Question 4: In Power Platform ALM, which solution component type stores the credentials configuration for a connector used inside a cloud flow?
- Environment variable
- Connection reference (Correct answer)
- Connector definition
- Flow definition
Correct answer: Connection reference
Connection references are solution-aware components that hold the connector type and allow swapping the underlying connection per environment during deployment.
Question 5: A developer registers a plug-in step in Dataverse for the 'Create' message on the Account table. In which pipeline stage should they register it to validate data BEFORE it is written to the database?
- Post-operation asynchronous
- Post-operation synchronous
- Pre-operation (Correct answer)
- Pre-validation
Correct answer: Pre-operation
The pre-operation stage fires after security checks but before the database write, making it the correct stage to modify or validate input data.
Question 6: Which Power Automate action allows you to call another flow directly as a child flow and wait for its response?
- HTTP action targeting the child flow's URL
- Run a Child Flow action (Correct answer)
- Compose action with flow reference
- Send an HTTP request to SharePoint
Correct answer: Run a Child Flow action
'Run a Child Flow' invokes a solution-aware instant flow synchronously and returns its output to the parent flow.
Question 7: When building a custom connector that calls an Azure Function, which policy template in the connector designer lets you transform the request URL before it reaches the function?
- Set query parameter policy
- Set host URL policy
- URL encode policy
- Rewrite URL policy (Correct answer)
Correct answer: Rewrite URL policy
The 'Rewrite URL' policy template in the custom connector policy editor modifies the request path before sending it to the backend Azure Function.
PL 400 Implement Power Platform Integrations 4
Which Azure resource enables Power Platform to call an on-premises SOAP web service without exposing it to the public internet?