Exam AZ-204 topic 3 question 33 discussion

I've tried the code in VS. Here's some thoughts: 1. box: - GetChanges() - wrong - var c in the foreach would be BlobChangeFeedEvent which doesn't contain Values property used in ProcessChanges(c.Values) line below - GetChangesAsync - wrong - code won't compile because it would require await foreach loop instead - GetChanges(x).AsPages() - correct - it's the only option to make this code even compile - GetChanges(x).GetEnumerator() - wrong - you cannot use IEnumerator type as foreach source 2. box: - x = c.ContinuationToken - right - variable x was used as continuationToken parameter in changeFeedClient.GetChanges(x).AsPages() above - c.GetRawResponse().ReasonPhrase - wrong - that does not make sense to use this value as continuation token - x = c.Values.Min - wrong - continuation token is a number not date - x = c.Values.Max - wrong - as above So to sum up 1. changeFeedClient.GetChanges(x).AsPages() 2. x = c.ContinuationToken; You can find more about Continuation Token here: https://jessehouwing.net/azure-devops-accessing-apis-with-large-volumes-of-data/

BlobServiceClient is the main tool you use to interact with your blob storage. You use GetChangeFeedClient to monitor changes in your blobs. GetChangesAsPage allows you to fetch changes in smaller chunks (pages), especially when there are too many. The ContinuationToken helps you continue from where you left off in case you can’t process all changes in one go.

The Answer is correct!! var changeFeedClient = new BlobServiceClient("..").GetChangeFeedClient(); var continuationToken = default(string); while (true) { var changeFeed = changeFeedClient.GetChanges(continuationToken); foreach (var change in changeFeed) { continuationToken = change.ContinuationToken; ProcessChanges(change.Values); } } https://learn.microsoft.com/en-us/dotnet/api/azure.storage.blobs.changefeed.blobchangefeedclient.getchanges?view=azure-dotnet-preview#azure-storage-blobs-changefeed-blobchangefeedclient-getchanges

The answer is incorrect, continuationToken points to the position of the last processed change event, changeFeedClient.Getchanges(x).AsPages retrieves changes in chunks or pages so it's more efficient Handling.

For those who are wondering of the answer see this link by following the methods you see its using above above. 1. GetChanges(x).AsPages() 2. ContinuationToken is the correct answer

Got it on 20 April 2024...Marks > 900...All questions from examtopics 400 questions... - GetChanges(x).AsPages() ContinuationToken;

Jan-21-2024 - This was in my exam - Score 740, just border :) Didnt purchased contributor access. Contosso case study [Couldnt find here]

This question was on exam. 09/01/2024. Passed 872.

Got this quesiton in examn - 2023.09.25. Got Case Study Contoso

Had this question in today's exam: 2023-07-26

On my exam 2023-02-25

This question was on exam on 17/02/23.

As per Microsoft docs: GetchangesAsync(), contiuationtoken are correct https://learn.microsoft.com/en-us/azure/storage/blobs/storage-blob-change-feed-how-to

I believe it should be await... getchangesasync.... then getrawresponse, as x is a string. I don't see the connection to cancellationtoken.

i think the fisrt box must be : getChangesAsync() the second one is correct source : https://learn.microsoft.com/en-us/azure/storage/blobs/storage-blob-change-feed-how-to