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Exam AZ-204 topic 2 question 19 discussion

Actual exam question from Microsoft's AZ-204

Question #: 19
Topic #: 2

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
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You develop a software as a service (SaaS) offering to manage photographs. Users upload photos to a web service which then stores the photos in Azure
Storage Blob storage. The storage account type is General-purpose V2.
When photos are uploaded, they must be processed to produce and save a mobile-friendly version of the image. The process to produce a mobile-friendly version of the image must start in less than one minute.
You need to design the process that starts the photo processing.
Solution: Move photo processing to an Azure Function triggered from the blob upload.
Does the solution meet the goal?

A. Yes
B. No

Show Suggested Answer

Suggested Answer: B 🗳️

by AnkanG at July 26, 2020, 6:10 p.m.

Comments

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AnkanG

Highly Voted 4 years, 10 months ago

as is correct

upvoted 57 times

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fadikh

Highly Voted 4 years, 3 months ago

The answer is correct, but it should have also mentioned that the function app must not be on a consumption plan. because in that case, it might take up to 10 minutes to process the event.

upvoted 31 times

BrettusMaximus

4 years, 1 month ago

So the answer is NO. Cant wait 10 minutes

upvoted 8 times

altafpatel1984

3 years, 6 months ago

That limitation is only for Consumption plan. Since no mention of it, we can assume user can opt for premium, app service plan.

upvoted 5 times

HelloCloudWorld

1 year ago

Or we can assume user doesn't use premium plan... your argument isn't valid

upvoted 1 times

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bbou

4 years, 2 months ago

No 10 seconds

upvoted 1 times

bbou

4 years, 2 months ago

I was wrong - yes up to 10 minutes

upvoted 6 times

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dookebroyle

2 years, 12 months ago

The time limit is for the process to START only. It can take longer to process.

upvoted 6 times

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Ody

Most Recent 5 months, 2 weeks ago

Selected Answer: A

It appears this answer has changed over time and now their are two ways to configure the trigger. Newer --> Event-Based Trigger: This implementation uses Azure Event Grid to trigger the function. It provides low latency, typically triggering the function within seconds of the blob upload. Older --> Polling-Based Trigger: This implementation periodically polls the storage account for changes. The latency can be higher, potentially up to several minutes, depending on the polling interval. I only question if anyone writing test questions at Microsoft knows about it. https://learn.microsoft.com/en-us/azure/azure-functions/functions-event-grid-blob-trigger?pivots=programming-language-csharp

upvoted 2 times

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Tej_007

10 months, 3 weeks ago

Selected Answer: B

blob storage event doesn't guarantee an SLA. you cannot control the event arrival in less than a minute.

upvoted 2 times

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Munwalinwali

11 months, 3 weeks ago

Selected Answer: A

Answer is yes. Posted the question in ChatGPT

upvoted 1 times

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Isoldhe

1 year, 3 months ago

Selected Answer: A

Copilot AI: Yes, the solution meets the goal. Moving photo processing to an Azure Function triggered from the blob upload can help you create a scalable, serverless, and event-driven solution for your SaaS offering. Azure Functions can run code in response to various triggers, such as HTTP requests, timers, queues, and blobs. In this case, you can use a Blob storage trigger to execute your photo processing logic whenever a new photo is uploaded to a specific container in your storage account. This way, you can ensure that the process to produce a mobile-friendly version of the image starts in less than one minute, as the function is invoked almost immediately after the blob is created or updated.

upvoted 2 times

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ragha81

1 year, 4 months ago

Answer is B as per below comment There is no service level agreement around the time it takes for a message to arrive. It's not uncommon for messages to arrive anywhere from 30 minutes to two hours.

upvoted 2 times

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AhmedAbdelAziz

1 year, 4 months ago

Correct No : As there is no grantee on the blob storage to trigger in less than min , so we should use the event grid and the azure function should subscribe to the event grid not the blob direct

upvoted 2 times

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Jak007

1 year, 4 months ago

Selected Answer: B

B) No. As per the documentation linked by @Rabi3. Under "Recommended Practices for Consuming Blob Events": "There is no service level agreement around the time it takes for a message to arrive. It's not uncommon for messages to arrive anywhere from 30 minutes to two hours". https://learn.microsoft.com/en-us/azure/storage/blobs/storage-blob-event-overview#practices-for-consuming-events

upvoted 2 times

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Rabi3

1 year, 5 months ago

Selected Answer: B

Answer is B. the key point here is that the processing should start in less one minute. Which is not a guaranteed for Blob storage events. "There is no service level agreement around the time it takes for a message to arrive. It's not uncommon for messages to arrive anywhere from 30 minutes to two hours." https://learn.microsoft.com/en-us/azure/storage/blobs/storage-blob-event-overview#practices-for-consuming-events

upvoted 2 times

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bgbgvfvf

1 year, 5 months ago

I think the answer is B

upvoted 1 times

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ami2023

1 year, 7 months ago

Selected Answer: A

this is related to topic 2 question 8, A. Yes should the correct answer.

upvoted 1 times

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dddddd111

1 year, 7 months ago

Selected Answer: A

I think the answer is A.

upvoted 1 times

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Dixavado

1 year, 8 months ago

Selected Answer: A

Go with A

upvoted 1 times

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Kanasan

1 year, 9 months ago

> The process to produce a mobile-friendly version of the image must start in less than one minute. This cannot be fulfilled with the proposed solution. So, vote for B

upvoted 1 times

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LxstInNxght

1 year, 10 months ago

Selected Answer: A

Answer is A

upvoted 1 times

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EliteAllen

1 year, 10 months ago

Selected Answer: A

A. Yes The solution does meet the goal. Azure Functions can be triggered by blob storage events, such as the uploading of a new photo. When a new photo is uploaded to blob storage, the Azure Function would be triggered to process the photo and create a mobile-friendly version. The trigger is almost instantaneous, so the process would indeed start in less than a minute after a photo is uploaded. This meets the requirement mentioned in the question.

upvoted 1 times

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