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Exam AI-102 topic 2 question 2 discussion

Actual exam question from Microsoft's AI-102
Question #: 2
Topic #: 2
[All AI-102 Questions]

You are developing a method that uses the Computer Vision client library. The method will perform optical character recognition (OCR) in images. The method has the following code.

During testing, you discover that the call to the GetReadResultAsync method occurs before the read operation is complete.
You need to prevent the GetReadResultAsync method from proceeding until the read operation is complete.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

  • A. Remove the Guid.Parse(operationId) parameter.
  • B. Add code to verify the results.Status value.
  • C. Add code to verify the status of the txtHeaders.Status value.
  • D. Wrap the call to GetReadResultAsync within a loop that contains a delay.
Show Suggested Answer Hide Answer
Suggested Answer: BD 🗳️
by SamedKia at April 28, 2022, 9:44 a.m.

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sdokmak
Highly Voted 2 years, 10 months ago
Selected Answer: BD
as per link in solution
upvoted 13 times
sdokmak
2 years, 10 months ago
and looking at what getReadAsync and getReadResultAsync methods return. getReadResultAsync returns Observable<ReadOperationResult> object which contains as status() method.
upvoted 5 times
sdokmak
2 years, 10 months ago
getReadAsync doesn't have status method. Answer is B and D https://docs.microsoft.com/en-us/dotnet/api/system.io.stream.readasync?view=net-6.0
upvoted 4 times
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Pixelmate
Highly Voted 1 year, 10 months ago
this appeared in the exam 28/06
upvoted 7 times
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syupwsh
Most Recent 2 months, 2 weeks ago
Selected Answer: BD
You need to ensure that the read operation has completed successfully before proceeding. Checking the status value ensures the operation has finished. Repeatedly checking the status of the read operation until it is complete allows you to handle the asynchronous nature of the operation correctly BD are the answers
upvoted 1 times
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vp_2299
4 months, 3 weeks ago
Selected Answer: BD
as per link in solution
upvoted 1 times
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nanaw770
11 months, 1 week ago
Selected Answer: BD
results.Status GetReadResultAsync
upvoted 2 times
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rdemontis
1 year, 5 months ago
Selected Answer: BD
provided answer seems correct. The attached documentation demonstrate it
upvoted 3 times
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PHD_CHENG
2 years, 10 months ago
was on exam 7 Jun 2022
upvoted 4 times
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SamedKia
3 years ago
C and D are the correct answers.
upvoted 3 times
ppo12
2 years, 9 months ago
I don't think C is one of the answer based on https://github.com/Azure-Samples/cognitive-services-quickstart-code/blob/master/dotnet/ComputerVision/ComputerVisionQuickstart.cs. It seems results.Status is part of the while condition, hence I agree with dokmak's B and D
upvoted 1 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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