DP-203 Practice Question: Secure, monitor, and optimize data storage and data processing
You are using Azure Stream Analytics to process real-time data from an event hub and output to Azure Synapse Analytics. You need to ensure exactly-once delivery semantics to the output. What should you configure?
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
✓
Set the output to 'Exactly Once' delivery mode.
Azure Stream Analytics supports exactly-once delivery to Azure Synapse Analytics by configuring the output to 'Exactly Once' delivery mode. Option A is incorrect because the input consumption mode does not control output delivery guarantees. Option B is incorrect because event ordering and late arrival policies handle timing, not delivery semantics. Option C is incorrect because checkpointing is for managing internal query state, not for ensuring exactly-once output.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Set the input to 'Exactly Once' consumption mode.
Why it's wrong here
Incorrect: Input consumption modes do not affect output delivery semantics.
- ✗
Configure event ordering and late arrival policies.
Why it's wrong here
Incorrect: These affect how events are processed, not delivery guarantees.
- ✗
Enable checkpointing in the query.
Why it's wrong here
Incorrect: Checkpointing ensures fault tolerance but not exactly-once delivery to output.
- ✓
Set the output to 'Exactly Once' delivery mode.
Why this is correct
Correct: Azure Stream Analytics provides exactly-once semantics when configured on the output.
Go deeper
Related to this question
Learn chapter
Introduction to Azure Data Engineering
Key term
Azure Stream Analytics
Azure Stream Analytics is a fully managed, real-time data processing service that analyzes and transforms high volumes of streaming data from various sources to deliver low-latency insights and trigger actions.
Key term
Azure Synapse Analytics
Azure Synapse Analytics is a cloud-based data integration, warehousing, and analytics service that brings together big data and data warehouse capabilities under one platform.
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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.