Correct Answers: B and E
A custom connector is an API wrapper around the REST API. You can create such a wrapper for Azure Functions, Azure Web Apps, Azure API apps.
When you create your application using one of these services, you need to describe the API`s operations before exporting your application`s APIs. There are three approaches to how to create the API definitions: Using a blank custom connector
Using an Open API definition
Using a Postman Collection
You can create a custom connector by importing the Postman collection JSON file. After you test your APIs using the Postman, you can export the collection. Postman creates the JSON file with the descriptions of your APIs. But before exporting the collection, you need to remove or disable two elements: Authorization and Content-type.
You can disable Authorization from the Authorization tab (Number 1) on the central Postman panel by selecting the “No Auth” option from the Type drop-down (Number 2). You need to save your changes using the Save button (Number 3).
Next, on the Headers tab (Number 1), you can uncheck the box in front of the Content-Type Key (Number 2) and save your changes (Number 3).
After these operations, you can export your collection from the Postman and import the JSON file as a custom connector definition.
All other options are incorrect.
For more information about preparing and using the Postman collections for the custom connectors, please visit the below URLs:
https://docs.microsoft.com/en-us/connectors/custom-connectors/create-postman-collection#export-the-postman-collection
https://docs.microsoft.com/en-us/connectors/custom-connectors/create-postman-collection
https://docs.microsoft.com/en-us/connectors/custom-connectors/define-postman-collection