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Exam AZ-300 topic 5 question 9 discussion

Actual exam question from Microsoft's AZ-300

Question #: 9
Topic #: 5

HOTSPOT -
You are developing a SMS-based testing solution. The solution sends users a question by using SMS. Early responders may qualify for prizes.
Users must respond with an answer choice within 90 seconds. You must be able to track how long it takes each user to respond. You create a durable Azure
Function named SendSmsQuizQuestion that uses Twilio to send messages.
You need to write the code for MessageQuiz.
How should you complete the code? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:

Show Suggested Answer

Suggested Answer: Explanation

by Atef at Jan. 13, 2020, 11:18 p.m.

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simonxinyu

Highly Voted 5 years, 4 months ago

https://www.examtopics.com/exams/microsoft/az-202/view/7/

upvoted 39 times

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Atef

Highly Voted 5 years, 5 months ago

Box 1 should be DateTime expiration = context.CurrentUtcDateTime.AddSeconds(90); Box 2 Should be var timeoutTask = context.CreateTimer(expiration, cts.Token);

upvoted 21 times

tartar

4 years, 9 months ago

Box 1: DateTime expiration = context.CurrentUtcDateTime.AddSeconds(90); Box 2: var timeoutTask = context.CreateTimer(expiration, cts.Token); Box 3: if(!timeoutTask.IsCompleted)

upvoted 3 times

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BEB

Most Recent 4 years, 10 months ago

See https://docs.microsoft.com/en-us/azure/azure-functions/durable/durable-functions-overview?tabs=csharp scroll down to function workflow.. Good read.. If you are just looking for answers: (by examt topics) Box 1: DateTime expiration = context.CurrentUtcDateTime.AddSeconds(90); The user has 90 seconds to respond with the code they received in the SMS message. Box 2:var timeoutTask = context.CreateTimer(expiration, cts.Token); Create a timer. Box 3: if(!timeoutTask.IsCompleted) All pending timers must be complete or canceled before the function exits.

upvoted 2 times

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dips31089

4 years, 10 months ago

Box 1 --- DateTime expiration = context.CurrentUtcDateTime.AddSeconds(90); You cant use datetime.now directly but should rather use the datetime within the context. Box 2 --- timeoutTask = context.CreateTimer(expiration, cts.Token) cts variable used here is a giveaway. :)

upvoted 3 times

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kk1

4 years, 11 months ago

https://docs.microsoft.com/en-us/azure/azure-functions/durable/durable-functions-phone-verification?tabs=csharp

upvoted 1 times

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jonnybugaloo

4 years, 12 months ago

https://www.examtopics.com/assets/media/exam-media/02522/0013800001.png

upvoted 8 times

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Prash85

4 years, 12 months ago

Box 1 should be DateTime expiration = context.CurrentUtcDateTime.AddSeconds(90); Box 2 Should be var timeoutTask = context.CreateTimer(expiration, cts.Token);

upvoted 3 times

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cacasodo

5 years, 1 month ago

This article provides some understanding as well: https://docs.microsoft.com/en-us/azure/azure-functions/durable/durable-functions-timers?tabs=csharp

upvoted 1 times

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tboggie

5 years, 1 month ago

Would this type of question come up in the exam? Doesn't look like an AZ-300 question.

upvoted 11 times

tmurfet

5 years ago

One or two I think -- a requirement for a solution architect to be able to have enough knowledge to read code enough to communicate with DevOps. The answer is in the question if you look for it. In this case the variable cts is a tell for the answer in the second box.

upvoted 3 times

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DP80

5 years, 1 month ago

The following code implements a similar functionality => https://github.com/Azure/azure-functions-durable-extension/blob/master/samples/precompiled/PhoneVerification.cs

upvoted 6 times

praveen97

4 years, 11 months ago

Good article.

upvoted 2 times

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