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Exam AZ-303 topic 6 question 51 discussion

Actual exam question from Microsoft's AZ-303
Question #: 51
Topic #: 6
[All AZ-303 Questions]

You create an Azure Time Series Insights event handler. You need to send data over the network as efficiently as possible and optimize query performance.
What should you do?

  • A. Create a query plan
  • B. Send all properties
  • C. Use a Tag ID
  • D. Use reference data
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Suggested Answer: D 🗳️
References:
https://docs.microsoft.com/en-us/azure/time-series-insights/how-to-shape-query-json
by Yiannisthe7th at July 2, 2021, 5:39 p.m.

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Yiannisthe7th
Highly Voted 3 years, 11 months ago
D - Use reference data - correct Reference data is used to reduce the number of bytes transferred over the network. The two attributes messageId and deviceLocation are joined by using the key property deviceId. This data is joined with the telemetry data at ingress time and is then stored in Time Series Insights for querying
upvoted 14 times
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syu31svc
Most Recent 3 years, 9 months ago
Incorrect Answers: Create a query plan – This option is to query the events. This will not optimize the data sent over network efficiently. Send all properties - This option will increase the data set size. Use a Tag ID – This is an identifier. Answer is D
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