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Exam AI-100 topic 2 question 42 discussion

Actual exam question from Microsoft's AI-100

Question #: 42
Topic #: 2

HOTSPOT -
You are developing an application that will perform clickstream analysis. The application will ingest and analyze millions of messages in the real time.
You need to ensure that communication between the application and devices is bidirectional.
What should you use for data ingestion and stream processing? 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:

Box 1: Azure IoT Hub -
Azure IoT Hub is the cloud gateway that connects IoT devices to gather data and drive business insights and automation. In addition, IoT Hub includes features that enrich the relationship between your devices and your backend systems. Bi-directional communication capabilities mean that while you receive data from devices you can also send commands and policies back to devices.
Note on why not Azure Event Hubs: An Azure IoT Hub contains an Event Hub and hence essentially is an Event Hub plus additional features. An important additional feature is that an Event Hub can only receive messages, whereas an IoT Hub additionally can also send messages to individual devices. Further, an
Event Hub has access security on hub level, whereas an IoT Hub is aware of the individual devices and can grand and revoke access on device level.
Box 2: Azure Hdinsight with Azure Machine Learning service
References:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-compare-event-hubs https://docs.microsoft.com/en-us/azure/hdinsight/hdinsight-machine-learning-overview

by exam_taker5 at Aug. 9, 2019, 5:39 p.m.

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exam_taker5

Highly Voted 5 years, 10 months ago

Second answer should be HDInsight with Apache Storm

upvoted 47 times

CodeAnant

5 years, 10 months ago

correct

upvoted 2 times

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Stants

5 years, 6 months ago

Storm for real time analytic. https://www.edureka.co/blog/introduction-to-real-time-analytics-with-apache-storm/

upvoted 5 times

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giusecozza

Highly Voted 5 years, 2 months ago

Azure Machine Learning services include Spark and it is recommended as a good choice to perform Clickstream analysis. So the answer is correct, from my point of view. https://azure.microsoft.com/en-in/blog/streaming-analytics-use-cases-with-spark-on-azure/

upvoted 6 times

Egosyntonic

5 years, 1 month ago

I dont think so. I setted up an Machine Learning Enviroment and Azure ML is not including it from scratch, but there are scenarios in which you can use Spark with Azure. But in my understanding its not included.

upvoted 1 times

giusecozza

5 years, 1 month ago

The question is talking about ML Services in HDInsight, not Azure Machine Learning as itself, which is different (https://docs.microsoft.com/it-it/azure/machine-learning/overview-what-is-azure-ml). ML Services in HDInsight include Spark compute context, just check out here: https://docs.microsoft.com/it-it/azure/hdinsight/r-server/r-server-overview https://docs.microsoft.com/it-it/azure/hdinsight/r-server/r-server-compute-contexts

upvoted 7 times

Egosyntonic

5 years ago

Ah I see, thank you!

upvoted 2 times

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zzxl

Most Recent 4 years, 4 months ago

HDInsight with Storm is the answer: link here https://docs.microsoft.com/en-us/azure/hdinsight/hdinsight-streaming-at-scale-overview HDInsight with ML is more for gaining insights and analytics. Question here specifically saying process streaming data in REAL-TIME. Hope the answer gets corrected since it is the consensus here in the comments

upvoted 3 times

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HaoHu

4 years, 7 months ago

IoT hub or Event hub? https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-compare-event-hubs

upvoted 1 times

nohaph

4 years, 5 months ago

IoT hub is correct because it is bidirectional

upvoted 7 times

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H2HG

4 years, 9 months ago

Given answer is correct. https://techcommunity.microsoft.com/t5/azure-global/azure-data-architecture-guide-blog-5-clickstream-analysis/ba-p/306630

upvoted 1 times

sayak17

4 years, 8 months ago

no. machine learning service is not a stream processing service. here are the stream processing technologies https://docs.microsoft.com/en-us/azure/architecture/data-guide/technology-choices/stream-processing

upvoted 4 times

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sayak17

4 years, 9 months ago

data ingestion should be event hubs. check this: https://techcommunity.microsoft.com/t5/azure-global/azure-data-architecture-guide-blog-5-clickstream-analysis/ba-p/306630

upvoted 2 times

sayak17

4 years, 9 months ago

and stream processing is storm like mentioned above

upvoted 2 times

sayak17

4 years, 8 months ago

here are the stream processing technologies supported by Azure. storm is one of them. machine learning service is NOT one of them. https://docs.microsoft.com/en-us/azure/architecture/data-guide/technology-choices/stream-processing

upvoted 4 times

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noonereallyknows

4 years, 7 months ago

event hub doesn't allow bidirectional communication it's IoT Edge just because it does allow it

upvoted 8 times

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Bharat

5 years, 10 months ago

Thanks for posting your solution. I agree totally.

upvoted 5 times

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