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| Section | Weight | Objectives |
|---|---|---|
| Secure and govern data using Unity Catalog | 15-20% | - Data governance fundamentals
|
| Configure and manage Azure Databricks environments | 15-20% | - Workspace and compute configuration
|
| Deploy and manage data pipelines and workloads | 30-35% | - Operational reliability
|
| Prepare and process data | 30-35% | - Data transformation and modeling
|
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NEW QUESTION # 70
Hotspot Question
You have an Azure Databricks workspace.
You have an Azure key vault named kv-secure that stores a secret named storageKey. The value of storageKey is managed and updated by the cloud security team at your company.
You need to enable a Databricks notebook named Notebook1 to retrieve the value of storageKey securely at runtime. The solution must follow the principle of least privilege and always retrieve the latest value.
What should you do? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
NEW QUESTION # 71
Hotspot Question
You have an Azure Databricks workspace that contains a job in Lakeflow Jobs named Job1.
Job1 contains three tasks named Task1, Task2, and Task3.
If Task1 fails, Task2 and Task3 must be prevented from running. Successfully completed tasks must NOT rerun during recovery.
You need to configure Job1 to support controlled failure handling and recovery.
What should you configure? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
NEW QUESTION # 72
You have an Azure Databricks workspace.
A vendor sends order events to an Azure event hub continuously throughout the day. The events must be ingested with low latency into an orders Delta table as they are received.
You create a job in Lakeflow Jobs named Job1 to ingest data from the event hub stream.
You need to configure a trigger for Job1.
Which type of trigger should you use?
Answer: D
Explanation:
A continuous trigger is designed for always-on workloads, including streaming ingestion processes that must remain active and process events as they arrive. Because the vendor continuously publishes order events to Azure Event Hubs and the events must be written to the orders Delta table with low latency, Job1 should run continuously rather than waiting for a periodic or storage-based trigger. Azure Databricks specifically recommends continuous mode for always-on streaming workloads. Microsoft Learn A scheduled trigger would start the job only at defined time intervals, introducing ingestion delays between scheduled runs. A table-update trigger is intended to start processing when specified upstream Unity Catalog tables are updated; the source in this scenario is an Azure event hub rather than a table. A file-arrival trigger monitors cloud storage for new files, but Event Hubs supplies streaming events instead of arriving files.
The continuous trigger keeps the streaming workload active and enables the ingestion logic to consume new events shortly after the events become available. Therefore, it best satisfies the continuous, low-latency ingestion requirement.
NEW QUESTION # 73
You have an Azure Databricks workspace that uses serverless compute.
You need to ingest data by using Lakeflow Jobs. New records must be processed as soon as they become available.
Which type of job trigger should you use for the ingestion?
Answer: D
Explanation:
The best trigger type for this scenario is the Continuous trigger.
Immediate Processing: The Continuous trigger mode processes new records as soon as they arrive at the configured data sources. This matches your requirement to ingest and process records without waiting for an artificial time interval.
Native Serverless Support: When paired with serverless compute, Lakeflow Jobs efficiently manage resources by automatically scaling up or down according to the real-time stream volume.
Built-in Fault Tolerance: Continuous pipelines on Databricks automatically handle failures by retrying with an exponential backoff policy, keeping your automated ingestion operational 24/7 without manual intervention.
Reference:
https://docs.databricks.com/aws/en/jobs/continuous
NEW QUESTION # 74
You have an Azure Databricks workspace that is enabled for Unity Catalog.
You plan to ingest data from CSV files stored in Azure Data Lake Storage Gen2. New rows are appended frequently.
You need to implement a data ingestion solution that meets the following requirements:
* New data must be available in near-real-time (NRT).
* The data must be stored in managed Delta tables.
* The solution must minimize custom code and maintenance effort.
What should you include in the solution?
Answer: A
Explanation:
Auto Loader incrementally detects and processes new files arriving in Azure Data Lake Storage Gen2 through the cloudFiles Structured Streaming source. It supports near-real-time ingestion while automatically tracking processed files, reducing the custom state-management code required. Its output can be written to a managed Delta table, and built-in schema inference and evolution reduce ongoing maintenance. Scheduled Spark batch jobs introduce latency based on their schedule and usually require custom file-tracking logic. An external table over CSV files does not ingest the data into a managed Delta table. Azure Data Factory can orchestrate ingestion, but it introduces another service and more configuration than the native Databricks capability needed here. Auto Loader is therefore the most direct and maintainable solution for continuously arriving cloud files. Microsoft Learn
Topic 1, Contoso Case Study
Overview
Contoso has a single Azure Databricks workspace named Workspace1 in the West US Azure region.
Workspace1 is enabled for Unity Catalog.
Workspace1 contains all-purpose clusters for both development and production workloads.
The company ' s Azure environment contains:
* In the West US, Central US, and East US Azure regions, Azure event hubs that stream telemetry data and an Azure Data Lake Storage Gen2 account in each region for each hub
* A single Azure SQL database in the West US region that hosts enterprise resource planning (ERP) data
* An Azure Database for PostgreSQL server in the West US region that stores operational maintenance data Company information Contoso, Inc. is a renewable energy provider that operates solar and wind farms across North America.
Data Environment
Contoso ingests the following operational and business data:
* Telemetry data: More than 40,000 loT sensors across 28 sites emit JSON telemetry events every few seconds. Each site sends the events to the nearest event hub, which writes the data into the corresponding Data Lake Storage Gen2 account. These files frequently experience schema drift.
* Maintenance logs: Maintenance systems generate historical repair logs, daily incremental updates, technician notes, and unstructured attachments that are stored in the Data Lake Storage Gen2 accounts.
* Operational maintenance data: Structured operational maintenance data is stored on the Azure Database for PostgreSQL server.
* External weather data: Hourly weather forecasts are retrieved from a REST API and written to the Data Lake Storage Gen2 accounts.
* ERP data: Daily CSV extracts of 50 to 100 GB contain equipment metadata, work orders, and purchase order information.
Problem Statements
The company ' s existing analytics environment has several issues:
Ingestion
* Telemetry pipelines fall behind during peak loads.
* Telemetry ingestion fails when schema drift occurs.
* Streaming pipelines reprocess events after a pipeline restarts.
Compute
* Production and development workloads run on the same all-purpose clusters.
* Production and development workloads do NOT support autoscaling or workload isolation.
Governance
* The ERP data is duplicated across systems and development teams.
* Naming conventions are inconsistent across development teams, regions, and products.
* Ownership of the loT sensors changes over time, and analysts must track the full history of the ownership.
* Occasionally, equipment manufacturers must correct data-entry mistakes in equipment names. Historical values are NOT required.
Pipeline operations
* Pipelines lack resiliency, alerting, and centralized scheduling.
Planned Changes
Contoso plans to implement the following changes:
* Implement scalable data pipeline orchestration.
* Create a managed analytics catalog in Unity Catalog.
* Implement a consistent approach to creating curated datasets.
* Establish a centralized governance model across ingestion, cleansed, and curated layers.
* Grant data engineers access to the ERP tables by using minimal development effort.
* Adopt a compute strategy that isolates production workloads and supports autoscaling.
* Adopt a slowly changing dimension (SCD) approach to address current data modeling issues.
Technical Requirements
Contoso identifies the following environment and compute requirements:
* Ensure that production ingestion workloads run on compute clusters that can scale automatically during telemetry spikes.
* Provide fast and consistent performance for business intelligence (Bl) workloads.
* Prevent development activity from affecting production pipelines.
* Production ingestion workloads must run as scheduled, non-interactive pipelines rather than on shared interactive development clusters.
Contoso identifies the following data ingestion and processing requirements:
* Auto-scale ingestion pipelines to handle bursty workloads.
* Handle schema drift for the maintenance and telemetry data.
* Ingest file-based telemetry data by using minimal operational effort.
* Store all the ingested data in a format that supports incremental processing.
* Support the continuous ingestion of telemetry data from the event hubs by using exactly-once semantics.
* Support the ingestion of the structured maintenance data from the Azure Database for PostgreSQL server.
* Build a new telemetry pipeline that ingests raw events from the event hubs, cleanses the data, and publishes curated tables to Unity Catalog.
* Ensure that the Apache Spark Structured Streaming pipelines reading from the event hubs write the data into a managed Delta table named telemetry.raw_events. The pipelines must support schema drift and resume processing after failures without reprocessing the data.
Contoso identifies the following data modeling and optimization requirements:
* Build curated tables that standardize business logic.
* Overwrite equipment metadata attributes, such as name, manufacturer, model, and commissioning date, when the attributes change. Historical values are NOT required.
Contoso identifies the following pipeline deployment and operation requirements: |
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