Access Representational State Transfer (REST) Services from Within Business Central MB-820 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A developer is writing code to call an external REST API that requires an authorization header. The API expects the header to be set on every request. Which approach correctly sets the header for an HTTP request in Business Central?

   • AInclude the header in the URL as a query parameter, such as ?authorization=Bearer token.
   • BSet the header on the HttpClient object using client.Headers.Add('Authorization', 'Bearer token') before sending the request.
   • CSet the header in the HttpContent object using content.Headers.Add('Authorization', 'Bearer token').
   • DCreate an HttpRequestMessage, set the header using request.Headers.Add('Authorization', 'Bearer token'), and then send it with HttpClient.Send.
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2. 7foundation · easy

   When retrieving data from a REST service in Business Central, which HTTP method is typically used?

   • APOST
   • BDELETE
   • CGET
   • DPUT
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4. 8foundation · easy

   Which property of the HttpResponseMessage class in AL indicates whether the HTTP request was successful?

   • AStatusCode
   • BIsSuccessStatusCode
   • CContent
   • DReasonPhrase
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5. 9foundation · easy

   Which AL class is used to create a JSON object to send to a REST service?

   • AJsonArray
   • BTextBuilder
   • CJsonObject
   • DHttpClient
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6. 10application · medium

   A company needs to send a JSON payload to an external REST API to create a new customer record. The developer must construct the JSON and send it using Business Central. Which approach is correct?

   • ASerialize a record directly to JSON using JsonObject and send it with HttpContent without setting the content type.
   • BUse JsonObject to build the payload and then call HttpClient.Post with the JsonObject as the body.
   • CBuild a JSON object using JsonObject and JsonValue, then set the content of an HttpContent object and send it with HttpClient.Send.
   • DCreate a text string manually and pass it directly to HttpClient.Send as the request body.
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