Structured Streaming & Autoloader: Practice Questions

Learning Objectives

Validate your understanding of Structured Streaming syntax using readStream and writeStream

Test your ability to identify appropriate use cases for Auto Loader vs COPY INTO

Demonstrate knowledge of Auto Loader configuration including cloudFiles format and schema evolution

Assess your grasp of trigger modes for controlling streaming query execution frequency

Reinforce understanding of checkpointing for fault tolerance and incremental processing

Verify your knowledge of output modes and their impact on downstream data consumers

This practice set covers Structured Streaming & Auto Loader, essential components of the Databricks Certified Data Engineer Associate exam. Each question tests your understanding of streaming concepts, Auto Loader functionality, and real-time data processing patterns.

Test your knowledge of streaming and incremental ingestion:

Structured Streaming fundamentals including readStream and writeStream operations
Auto Loader capabilities for incremental file ingestion with schema evolution support
Trigger modes including processingTime and availableNow for controlling execution frequency
Checkpointing mechanisms for fault tolerance and tracking ingestion progress
Output modes including append, update, and complete for different streaming scenarios
Watermarking techniques for handling late-arriving data in time-based processing
Auto Loader configuration options like maxFilesPerTrigger and schema location management

What makes this different:

Real-world scenarios from e-commerce, transportation, and analytics domains
Practical examples of Auto Loader vs COPY INTO decision-making
Clear explanations of streaming concepts and configuration options

Use this practice set to validate your streaming and Auto Loader knowledge before exam day.

Structured Streaming & Autoloader: Practice Questions

Learning Objectives

Overview

Prerequisites