Exam AZ-220 topic 4 question 8 discussion

Actual exam question from Microsoft's AZ-220

Question #: 8
Topic #: 4

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You have an Azure Stream Analytics job that receives input from an Azure IoT hub and sends the outputs to Azure Blob storage. The job has compatibility level
1.1 and six streaming units.
You have the following query for the job.

You plan to increase the streaming unit count to 12.
You need to optimize the job to take advantage of the additional streaming units and increase the throughput.
Solution: You change the query to the following.

Does this meet the goal?

A. Yes
B. No

Show Suggested Answer

Suggested Answer: A 🗳️

by Stephan99 at May 15, 2021, 10:56 a.m.

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kohmaksimka

Highly Voted 3 years, 4 months ago

Selected Answer: A

Yes - https://docs.microsoft.com/en-us/azure/stream-analytics/stream-analytics-parallelization#calculate-the-max-streaming-units-for-a-job Initial query is not partitioned and one step, so max 6 SU as mentioned in question. After altering query, the query now contains two steps. First one partitioned from non-partition input (6 SU) plus the secondary non-partitioned step (+ 6 SU as all non-partitioned steps together can scale up to six streaming units). Total is 12 SU

upvoted 5 times

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trickerk

Most Recent 3 years, 9 months ago

Answer should be YES. https://docs.microsoft.com/en-us/azure/stream-analytics/stream-analytics-parallelization

upvoted 3 times

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reynu

3 years, 11 months ago

what is the answer

upvoted 1 times

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tita_tovenaar

3 years, 11 months ago

answer is Yes. it is. one-step query and is partitioned, so max sku is 96. see table here: https://docs.microsoft.com/en-us/azure/stream-analytics/stream-analytics-parallelization

upvoted 4 times

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Stephan99

4 years ago

The input data stream is partitioned by 3. The query contains two steps. The input step is partitioned and the second step is not. The SELECT statement reads from the partitioned input. Result: 24 streaming units: (18 for partitioned steps + 6 for non-partitioned steps) see https://docs.microsoft.com/en-us/azure/stream-analytics/stream-analytics-parallelization

upvoted 1 times

exam67

4 years ago

There is nothing in the question suggesting that the input stream is partitioned by 3. Each of the query does only contain one step

upvoted 4 times

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