DP-203 Azure Data Engineer Associate DP-203 Azure Data Engineer Associate Real-Time Analytics and Streaming 1 — Questions and Answers
Question 1: Which Azure service is the primary entry point for ingesting large volumes of real-time event streaming data?
- Azure Service Bus
- Azure Event Hubs (Correct answer)
- Azure Notification Hubs
- Azure IoT Hub
Correct answer: Azure Event Hubs
Azure Event Hubs is a big data streaming platform and event ingestion service capable of receiving and processing millions of events per second.
Question 2: In Azure Event Hubs, what is a Consumer Group?
- A billing unit for event processing
- An independent view of the event stream allowing multiple consumers to read independently (Correct answer)
- A partition grouping strategy for throughput scaling
- A security policy applied to producers
Correct answer: An independent view of the event stream allowing multiple consumers to read independently
A Consumer Group provides an independent, isolated view of the event stream so multiple consumer applications can each read the stream at their own pace and offset.
Question 3: Which Azure service is used to perform SQL-based real-time analytics on streaming data from Event Hubs or IoT Hub?
- Azure Databricks
- Azure Stream Analytics (Correct answer)
- Azure Synapse Dedicated Pool
- Azure HDInsight
Correct answer: Azure Stream Analytics
Azure Stream Analytics is a fully managed, real-time analytics service that processes streaming data using a SQL-like query language with built-in windowing functions.
Question 4: What is a Tumbling Window in Azure Stream Analytics?
- A window that overlaps with adjacent windows
- A fixed-size, non-overlapping, contiguous time segment (Correct answer)
- A window triggered by each new event arrival
- A window that slides forward by a fixed interval
Correct answer: A fixed-size, non-overlapping, contiguous time segment
A Tumbling Window in Stream Analytics divides time into fixed, non-overlapping segments and aggregates events that fall within each segment.
Question 5: Which Event Hubs feature allows you to automatically capture streaming data to Azure Blob Storage or Data Lake Storage?
- Event Hubs Archive
- Event Hubs Capture (Correct answer)
- Event Hubs Mirror
- Event Hubs Replay
Correct answer: Event Hubs Capture
Event Hubs Capture automatically delivers the streaming data to an Azure Blob Storage or Azure Data Lake Storage account in Avro format at a specified time or size interval.
Question 6: In Azure Stream Analytics, what is the purpose of a Reference Data input?
- To provide the primary high-speed event stream
- To supply slowly changing lookup data joined against the event stream (Correct answer)
- To define the output sink for processed results
- To configure the query parallelism level
Correct answer: To supply slowly changing lookup data joined against the event stream
Reference Data in Stream Analytics is static or slowly changing data stored in Blob Storage or SQL Database that can be joined with the live event stream for enrichment.
DP-203 Azure Data Engineer Associate DP-203 Azure Data Engineer Associate Real-Time Analytics and Streaming 1
Which Azure service is the primary entry point for ingesting large volumes of real-time event streaming data?