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Exam AI-102 topic 2 question 2 discussion

Actual exam question from Microsoft's AI-102

Question #: 2
Topic #: 2

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

Suggested Answer: BD 🗳️

by SamedKia at April 28, 2022, 9:44 a.m.

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sdokmak

Highly Voted 2 years, 5 months ago

Selected Answer: BD

as per link in solution

upvoted 13 times

sdokmak

2 years, 5 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, 5 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, 5 months ago

this appeared in the exam 28/06

upvoted 7 times

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vp_2299

Most Recent 8 hours, 41 minutes ago

Selected Answer: BD

as per link in solution

upvoted 1 times

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nanaw770

6 months, 1 week ago

Selected Answer: BD

results.Status GetReadResultAsync

upvoted 2 times

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rdemontis

1 year, 1 month ago

Selected Answer: BD

provided answer seems correct. The attached documentation demonstrate it

upvoted 3 times

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PHD_CHENG

2 years, 6 months ago

was on exam 7 Jun 2022

upvoted 4 times

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SamedKia

2 years, 7 months ago

C and D are the correct answers.

upvoted 3 times

ppo12

2 years, 5 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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