Implementing an Azure Data Solution (legacy) — Question 16

You use Azure Stream Analytics to receive Twitter data from Azure Event Hubs and to output the data to an Azure Blob storage account.
You need to output the count of tweets from the last five minutes every minute.
Which windowing function should you use?

Answer options

• A. Sliding
• B. Session
• C. Tumbling
• D. Hopping

Correct answer: D

Explanation

The correct answer is D, Hopping, because it allows you to define overlapping time windows which can be used to count the tweets over the last five minutes every minute. The other options, such as Tumbling and Session, do not provide the necessary overlapping functionality, and Sliding is not suitable for the specified interval output requirement.