Custom Connectors Flashcards
7 cards from real PL 400 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Custom Connectors flashcards as text
When using OAuth 2.0 in a custom connector, where should the client secret be stored to keep it secure?
Answer: In the connector's security definition within the portal, not in the definition file
Client secrets are entered in the connector portal's security section and are stored encrypted server-side, never exposed in the definition file.
A custom connector trigger needs to notify Power Automate when a new event occurs in an external system. Which trigger type uses a callback URL registered with the external API?
Answer: Webhook trigger
Webhook triggers register a callback URL with the external service, which then calls that URL to push events to Power Automate.
You need to test a custom connector action against a live endpoint before deploying to production. Which built-in capability within the custom connector editor allows this?
Answer: Test console
The Test console tab in the custom connector editor lets you invoke actions against the real API and inspect requests and responses.
Which x-ms extension property causes the connector designer to display a human-readable summary instead of the raw operation ID?
Answer: x-ms-summary
The x-ms-summary extension provides a friendly display name shown in the Power Platform designer for operations and parameters.
An ISV wants to distribute a certified custom connector so it appears in the default connector gallery for all Power Platform tenants. What process must they follow?
Answer: Submit the connector to Microsoft for certification via the open-source GitHub connector repo
Microsoft-certified connectors are submitted through the public GitHub connectors repository and reviewed by Microsoft before being added to the gallery.
Which connection reference feature allows ALM pipelines to swap the underlying custom connector connection between environments without editing flows?
Answer: Connection references
Connection references decouple a flow from a specific connection, allowing different connections to be mapped per environment during deployment.
A custom connector action must send a binary file to a REST endpoint. Which content type and parameter schema type should be used?
Answer: multipart/form-data with type string format binary
Binary file uploads require multipart/form-data content type and a parameter schema of type string with format binary.