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Answer: All datasets will be updated at set intervals until the pipeline is shut down. The compute resources will be deployed for the update and terminated when the pipeline is stopped.
## Explanation **Correct Answer: C** This question tests understanding of Delta Live Tables (DLT) pipeline modes, specifically **Continuous Pipeline Mode** in **Production** mode. ### Key Concepts: 1. **Continuous Pipeline Mode**: - In Continuous mode, the pipeline runs continuously and processes data as it arrives - It doesn't stop after a single update - The pipeline keeps running until explicitly stopped 2. **Production Mode**: - In Production mode, compute resources are managed efficiently - Compute clusters are deployed when needed for processing - Resources are terminated when the pipeline is stopped to optimize costs 3. **Dataset Types**: - `STREAMING LIVE TABLE`: Processes streaming data continuously - `LIVE TABLE`: Processes batch data - Both types will be updated according to the pipeline mode ### Why Option C is Correct: - **"All datasets will be updated at set intervals until the pipeline is shut down"**: This matches Continuous mode behavior where the pipeline runs continuously, processing data at regular intervals - **"The compute resources will be deployed for the update and terminated when the pipeline is stopped"**: This matches Production mode behavior where resources are managed efficiently - deployed when needed and terminated when the pipeline stops ### Why Other Options are Incorrect: - **A**: Incorrect because it says "compute resources will persist" - in Production mode, resources are terminated when the pipeline stops - **B**: Incorrect because Continuous mode doesn't run once and shut down; it runs continuously - **D**: Incorrect because Continuous mode doesn't run once and shut down; it runs continuously until manually stopped ### Additional Context: - In **Development mode**, compute resources persist after pipeline runs for testing purposes - In **Triggered mode**, the pipeline runs once and then stops - The combination of Continuous + Production mode ensures continuous processing with efficient resource management
Author: Keng Suppaseth
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A Delta Live Table pipeline includes two datasets defined using STREAMING LIVE TABLE. Three datasets are defined against Delta Lake table sources using LIVE TABLE.
The table is configured to run in Production mode using the Continuous Pipeline Mode.
What is the expected outcome after clicking Start to update the pipeline assuming previously unprocessed data exists and all definitions are valid?
A
All datasets will be updated at set intervals until the pipeline is shut down. The compute resources will persist to allow for additional testing.
B
All datasets will be updated once and the pipeline will shut down. The compute resources will persist to allow for additional testing.
C
All datasets will be updated at set intervals until the pipeline is shut down. The compute resources will be deployed for the update and terminated when the pipeline is stopped.
D
All datasets will be updated once and the pipeline will shut down. The compute resources will be terminated.