DP-203 Practice Question: Secure, monitor, and optimize data storage and data processing
You need to monitor the performance of an Azure Stream Analytics job that processes real-time IoT data. Which metric indicates the number of events that are being dropped or delayed due to insufficient processing capacity?
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
✓
Backlogged input events.
Backlogged input events (C) measures the number of events that are queued awaiting processing, indicating that the job is unable to keep up with the input rate. High backlog suggests insufficient processing capacity, leading to dropped or delayed events. Watermark delay (A) measures the time lag in processing, but does not directly count events dropped. Input events (D) is the total received, not dropped/delayed. Output events (B) is the total sent.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Watermark delay.
Why it's wrong here
Watermark delay measures the time difference, not the count of backlogged events.
- ✗
Output events.
Why it's wrong here
Output events count events written to the sink, not backlog.
- ✓
Backlogged input events.
Why this is correct
Backlogged input events shows the number of events that are queued but not yet processed, indicating capacity issues.
- ✗
Input events.
Why it's wrong here
Input events count all events received, not backlog.
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Same concept, more angles
1 more way this is tested on DP-203
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. You need to monitor the performance of an Azure Stream Analytics job in real time. Which Azure service should you use to track the job's resource utilization (e.g., SU % utilization) and set up alerts when the job is approaching its capacity?
easy- ✓ A.Azure Monitor
- B.Azure Advisor
- C.Microsoft Sentinel
- D.Azure Log Analytics
Why A: Azure Monitor provides real-time metrics such as SU % utilization for Azure Stream Analytics jobs and allows you to set up alerts based on these metrics. Option B is incorrect because Azure Advisor offers best practice recommendations, not real-time monitoring and alerts. Option C is incorrect because Microsoft Sentinel is a SIEM tool for security analytics. Option D is incorrect because Azure Log Analytics is used for log analysis, not primarily for real-time metric alerts on resource utilization.
JA
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.