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Exam AZ-220 topic 4 question 2 discussion

Actual exam question from Microsoft's AZ-220

Question #: 2
Topic #: 4

HOTSPOT -
You have an Azure IoT hub named Hub1 and an Azure Time Series Insights environment named tsi1. Tsi1 connects to Hub1. The solution has been operational for 6 months.
Tsi1 is configured as shown in the following exhibit.

Hub1 receives 1 million messages per day. Each message is up to 1 KB and is formatted as JSON.
Hub1 has seven days of retained telemetry.
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Hot Area:

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Suggested Answer:

Reference:
https://docs.microsoft.com/en-us/azure/time-series-insights/time-series-insights-overview

by Stephan99 at May 31, 2021, 9:02 a.m.

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exam67

Highly Voted 4 years ago

My answer to first question is "N". Based on preconditions, there are not 100 days of events in the storage, because storage capacity is also limited in size to 30 million events and that number of events is produced in about 30 days (1 month)

upvoted 9 times

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Hussben

Most Recent 2 years, 5 months ago

NNN. The third one should be 'near real-time', not real time. https://learn.microsoft.com/en-us/azure/time-series-insights/time-series-insights-overview

upvoted 1 times

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liberty123

3 years, 3 months ago

Agree with N,N,Y

upvoted 3 times

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TechieBloke

3 years, 5 months ago

Doesn't know real time, there's a minute latency, so real-time should be NO.

upvoted 1 times

pdeng

2 years, 6 months ago

Depends on the definition of real-time, but 1 min latency can be considered as real-time in most use cases.

upvoted 1 times

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d0bermannn

3 years, 5 months ago

think NNY is more logical: 1&2 options limited to 30 days data 3 option still receives data

upvoted 4 times

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cburdea

3 years, 7 months ago

Why "No" on the last question?

upvoted 1 times

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Stephan99

4 years, 1 month ago

Y,N,N Maximum storage capacity: 30 GB (30 million events). Tsi1 will display 100 days of telemetry, but these must not be the last 100 days. https://docs.microsoft.com/en-us/azure/time-series-insights/time-series-insights-how-to-scale-your-environment

upvoted 1 times

Stephan99

4 years, 1 month ago

Correction: N,Y,N Maximum storage capacity: 30 GB (30 million events) Ingress rate: 1 GB (1 million events) per day Pause ingress After 30 days the ingress stops. Aufter 100 days the storage is deleted

upvoted 8 times

tita_tovenaar

4 years ago

you are correct

upvoted 1 times

tita_tovenaar

4 years ago

sorry, you’re not ;-) last question should be yes as max capacity isnt reached yet.

upvoted 7 times

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kohmaksimka

3 years, 5 months ago

Indeed NYN 1. 30 M event storage capacity is the blocking factor; so 1 month of data (30 days) 2. Solution is operational for 6 months (= 180 days) and will collect data for about 1 month. After 100 days (a little more than 3 months after first data is coming in), the first data is being deleted and the solution starts collecting new data until 1 month of data is collected again. The second batch of collected data is therefore 3 months old. (draw this on paper) 3. No, will be for 30 days (1 million events per day with a max storage of 30 M events)

upvoted 1 times

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