Secure, monitor, and optimize data storage and data processing →mediumMultiple ChoiceObjective-mapped
DP-203 Practice Question: Secure, monitor, and optimize data storage and data processing
Exhibit
Refer to the exhibit. KQL Query: ADXTable | where Timestamp > ago(1h) | summarize count() by bin(Timestamp, 5m) | render timechart
You are using Azure Data Explorer to monitor real-time sensor data. You run the KQL query shown in the exhibit. What is the purpose of this query?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
To visualize the count of events every 5 minutes over the last hour
The query uses `summarize count()` with `bin(Timestamp, 5m)` to count events in 5-minute intervals and then renders a timechart, effectively visualizing the count of events every 5 minutes over the last hour. Option A is incorrect because detecting anomalies would require functions like `series_decompose_anomalies`. Option B is incorrect because the query does not calculate an average; it counts events. Option D is incorrect because it does not filter by a specific sensor; it aggregates all events.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
To detect anomalies in the sensor data
Why it's wrong here
The query does not use anomaly detection functions.
- ✗
To calculate the average value of a numeric column over time
Why it's wrong here
The query uses count(), not avg().
- ✓
To visualize the count of events every 5 minutes over the last hour
Why this is correct
The summarize and render timechart achieve this.
- ✗
To filter events from a specific sensor
Why it's wrong here
There is no filter for sensor ID.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DP-203 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DP-203 exam.