A company has an existing REST API that returns customer data in a custom JSON format. The API requires an API key in a custom header named 'X-Customer-Key'. The company wants to expose this API to Power Apps through a custom connector. The OpenAPI definition is currently incomplete and does not include the authentication header. What should the developer do?

Import the OpenAPI definition, then edit the connector's security definition to add the API key header and update the operation parameters.

Create a new custom connector from scratch and manually add all operations without using the OpenAPI definition.

Modify the API to accept the API key in the query string instead of a header, then import the OpenAPI definition.

Use the 'Import from GitHub' option to automatically detect the authentication scheme from the API's source code.

A custom connector has been created from an OpenAPI definition that includes a 'Get Orders' operation. The developer needs to add a new optional query parameter 'status' to filter the results. What should the developer do?

Modify the API to accept the parameter and then update the connector's code.

Edit the OpenAPI definition in the connector's Swagger editor to add the parameter to the operation.

Create a new operation in the connector that duplicates the 'Get Orders' operation and add the parameter there.

Use a policy template to inject the parameter into the request.

A developer is building a custom connector that needs to perform complex calculations on data before sending it to an external API. The calculation logic is not available in the API and cannot be done with policy templates. The developer wants to implement this logic in a reusable way. What should the developer do?

Use Power Automate to perform the calculation before calling the connector.

Use a policy template to add JavaScript code to the connector.

Modify the OpenAPI definition to include the calculation logic as a custom operation.

Create an Azure Function that performs the calculation and expose it as an HTTP trigger, then add it as an operation in the custom connector.

Microsoft Certified:Power Platform Developer Associate

Domain 5Objective 2

Create Custom Connectors PL-400 Practice Questions (Page 5)

Part of the Extend the platform domain, which accounts for 30–35% of the PL-400 exam. Microsoft does not publish an official question count, but from its 100-minute exam (~40–65 total, ~12–23 in this domain), expect 2–5 from this objective — we provide 29 practice questions to prepare you well beyond it. (estimate)

29questions here

6free pages

8concepts

30–35%of the exam

Questions 21–25

21application · medium
A company has an existing REST API that returns customer data in a custom JSON format. The API requires an API key in a custom header named 'X-Customer-Key'. The company wants to expose this API to Power Apps through a custom connector. The OpenAPI definition is currently incomplete and does not include the authentication header. What should the developer do?
Select an answer first
22application · medium
A custom connector has been created from an OpenAPI definition that includes a 'Get Orders' operation. The developer needs to add a new optional query parameter 'status' to filter the results. What should the developer do?
Select an answer first
23foundation · medium
When extending an Open API definition, which section would you modify to add a new endpoint to the connector?
Select an answer first
24foundation · medium
When creating a custom connector for an Azure service, which Azure service can be directly selected as a source in the custom connector wizard?
Select an answer first
25application · medium
A developer is building a custom connector that needs to perform complex calculations on data before sending it to an external API. The calculation logic is not available in the API and cannot be done with policy templates. The developer wants to implement this logic in a reusable way. What should the developer do?
Select an answer first

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Create Custom Connectors PL-400 Practice Questions (Page 5)

Questions 21–25

A custom connector has been created from an OpenAPI definition that includes a 'Get Orders' operation. The developer needs to add a new optional query parameter 'status' to filter the results. What should the developer do?

When extending an Open API definition, which section would you modify to add a new endpoint to the connector?

When creating a custom connector for an Azure service, which Azure service can be directly selected as a source in the custom connector wizard?

Keep studying — Extend the platform