무료 온라인 액세스 Microsoft.AI-102-KR.v2026-03-02.q186 모의 시험 (Page 20)

AI-102-KR 문제 91

컴퓨터 비전 클라이언트 라이브러리를 사용하는 메서드를 개발하고 있습니다. 이 메서드는 이미지에서 광학 문자 인식(OCR)을 수행합니다. 메서드의 코드는 다음과 같습니다.

테스트하는 동안 GetReadResultAsync 메서드에 대한 호출이 읽기 작업이 완료되기 전에 발생한다는 것을 발견했습니다.
읽기 작업이 완료될 때까지 GetReadResultAsync 메서드가 진행되지 않도록 해야 합니다.
어떤 두 가지 행동을 취해야 할까요? 정답은 해결책의 일부를 나타냅니다. (두 가지를 선택하세요.) 참고: 정답 하나당 1점입니다.

A. Guid.Parse(operationId) 매개변수를 제거합니다.

B. 결과와 상태 값을 확인하기 위한 코드를 추가합니다.

C. txtHeaders.Status 값의 상태를 확인하는 코드를 추가합니다.

D. 지연을 포함하는 루프 내에서 GetReadResultAsync에 대한 호출을 래핑합니다.

정답: B,D

The method shown uses the Read API of the Azure Computer Vision client library. The ReadAsync call submits the OCR job and returns an Operation-Location header, which contains the operationId. Then GetReadResultAsync(Guid.Parse(operationId)) is called to fetch the result.
* The Read API is asynchronous.
* Submitting the read request does not mean the OCR has finished.
* If you immediately call GetReadResultAsync, the operation may still be in progress, resulting in incomplete or empty results.
* Check the results.Status property
* The response from GetReadResultAsync includes a status property.
* Possible values: notStarted, running, succeeded, failed.
* You must wait until the status is succeeded before processing results.
* This ensures you don't attempt to read lines before OCR has completed.
* This corresponds to B.
* Wrap in a loop with delay
* Since OCR takes time, you need to poll the service until the status becomes succeeded or failed.
* A typical pattern is:
* ReadOperationResult results;
* do
* {
* results = await client.GetReadResultAsync(Guid.Parse(operationId));
* await Task.Delay(1000); // wait 1 second before retrying
* }
* while (results.Status == OperationStatusCodes.Running || results.Status == OperationStatusCodes.
NotStarted);
* This corresponds to D.
* A. Remove the Guid.Parse(operationId) parameter
* Incorrect. The operationId is required to fetch the OCR results.
* B. Add code to verify the results.Status value
* Correct. You must check whether the operation has completed.
* C. Add code to verify the status of the txtHeaders.Status value
* Incorrect. txtHeaders only contains metadata and the operation location. The OCR completion status comes from the results.Status in the GetReadResultAsync response, not from txtHeaders.
* D. Wrap the call to GetReadResultAsync within a loop that contains a delay
* Correct. This is how you poll until the operation has finished.
The answer: B and D
* Azure Computer Vision Read API
* Read text using the Computer Vision client library