PL 400 Custom Connectors 5

Question 1

A custom connector needs to call an on-premises API that is not publicly accessible. Which component enables this connectivity?

Accepted Answer

On-premises data gateway

Answer

The on-premises data gateway acts as a bridge between Power Platform cloud services and APIs hosted inside a private corporate network.

Question 2

Which property in the OpenAPI definition controls the base URL that the custom connector uses to make API calls?

Accepted Answer

host and basePath (Swagger 2.0) or servers[].url (OpenAPI 3.0)

Answer

In Swagger 2.0 the host and basePath fields combine to form the base URL; in OpenAPI 3.0 the servers array's url property serves this purpose.

Question 3

After publishing a custom connector update, existing connections used by flows continue to use the old definition until which action is taken?

Accepted Answer

The connection is recreated or the flow is re-authenticated

Answer

Existing connections cache their configuration; recreating the connection or refreshing authentication picks up the updated connector definition.

Question 4

A developer wants to add a code snippet to transform a request body before it is sent from a custom connector. Where is this transformation configured in the connector portal?

Accepted Answer

In the Code (Preview) section of the custom connector editor

Answer

The Code (Preview) section allows developers to write C# script that runs before the request is sent or after the response is received.

Question 5

Which Azure service can be placed in front of a backend API to provide throttling, caching, and a single endpoint for multiple custom connectors?

Accepted Answer

Azure API Management

Answer

Azure API Management provides a managed gateway with policies for throttling, caching, and transformation in front of backend APIs used by custom connectors.

(PL 400) Microsoft Certified Power Platform Developer Associate Practice Test

(PL 400) Microsoft Certified Power Platform Developer Associate Practice Test

PL 400 Custom Connectors 5