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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Secure and govern data using Unity Catalog | 15-20% | - Access control and policies
|
| Topic 2: Prepare and process data | 30-35% | - Data ingestion
|
| Topic 3: Configure and manage Azure Databricks environments | 15-20% | - Security and authentication setup
|
| Topic 4: Deploy and manage data pipelines and workloads | 30-35% | - Operational reliability
|
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NEW QUESTION # 26
You need to deploy Databricks Asset Bundles to a development environment. The solution must support automated and repeatable deployments across environments. What should you use?
Answer: A
Explanation:
The best option to use is the Databricks CLI.
The Databricks CLI is the core orchestration tool natively designed to validate, deploy, and manage Declarative Automation Bundles (formerly known as Databricks Asset Bundles) across multiple target environments using simple terminal commands like databricks bundle deploy.
Incorrect:
[Not A]
Git folders: Git folders are strictly a mechanism for version control, code syncing, and repository collaboration inside the workspace. While they are highly integrated with bundle development, they cannot directly deploy or provision bundle targets to isolated environments on their own without the CLI.
[Not C]
Databricks SDK for Python: While the Python SDK provides general programmatic access to Databricks APIs, it is not the primary or optimized tool for executing bundle operations. The bundle framework natively relies on the Databricks CLI executable to compile and translate your configurations.
[Not D]
Jobs UI: The Jobs user interface is built for manual interactions. It does not support native bundle multi-environment targeting or automated, repeatable CI/CD pipelines.
Reference:
https://docs.databricks.com/aws/en/dev-tools/bundles/
NEW QUESTION # 27
You have an Azure Databricks workspace that is enabled for Unity Catalog You have an Apache Spark Structured Streaming job that writes data to a Delta table.
After the cluster restarts, the streaming job reprocesses previously ingested data You need to prevent the streaming job from reprocessing the data after the cluster restarts.
What should you do?
Answer: C
Explanation:
The correct answer is B - configure a checkpoint location.
A checkpoint is the Structured Streaming mechanism for fault tolerance. Databricks writes the committed offset (i.e., how far through the source stream the job has successfully read and processed) to a durable path in ADLS Gen2 or DBFS after each micro-batch. When the cluster restarts, the engine reads that offset and resumes from the next unprocessed record - nothing is reprocessed, nothing is skipped.
Option A (increase trigger interval) affects how frequently micro-batches run but does nothing to record progress between runs. Option C (watermark) handles late-arriving events in event-time windows but doesn't control source offset tracking. Option D (enable CDF on the target table) tracks changes made to a Delta table for downstream consumers - it has no bearing on the streaming job's own fault tolerance or offset management.
Checkpointing is a required configuration for any production streaming job. Without it, every cluster restart triggers a full replay from the source.
Reference: https://learn.microsoft.com/en-us/azure/databricks/structured-streaming/query-recovery
NEW QUESTION # 28
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:
You should use Auto Loader with Delta Live Tables (DLT) or a streaming readStream using the cloudFiles format to load data into Unity Catalog managed tables.
To achieve the absolute lowest maintenance and custom code, Delta Live Tables with Auto Loader is the recommended choice.
Configure Cloud FilesFormat option: Set the source format to cloudFiles in your Spark stream.File detection: Auto Loader automatically tracks new files arriving in Azure Data Lake Storage (ADLS) Gen2.Schema evolution: It infers and adapts to schema changes without code updates.
Reference:
https://docs.databricks.com/aws/en/ingestion/cloud-object-storage/auto-loader/unity-catalog
NEW QUESTION # 29
You have an Azure Databricks workspace that contains a Delta table named Table1.
Table1 has accumulated obsolete files.
You need to reduce storage costs. The solution must preserve 30 days of time travel history.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
Answer: D,E
Explanation:
To diminish storage costs while preserving 60 days of time travel history, you must perform the following two actions: Set the delta.deletedFileRetentionDuration table property to 60 days and Run the vacuum command on the table.
Set the delta.deletedFileRetentionDuration table property to 30 days
This property controls how long data files must be deleted before they become eligible for removal by a cleanup process. By default, it is set to 7 days. Increasing it to 60 days ensures that Delta Lake preserves the underlying parquet files required to query any historical snapshot within your 30-day time travel window.
Run the vacuum command on the tableChanging the retention property alone does not delete files or reduce costs. You must explicitly execute the VACUUM command. The command scans the table and permanently deletes uncommitted or deleted data files that are older than the 60- day threshold defined by your retention duration, thereby freeing up storage space.
Incorrect:
[Not C]
Set the delta.logRetentionDuration table property to 30 days
This property controls how long the transaction log (_delta_log) history is kept, which defaults to
30 days. While the transaction log is required for time travel, modifying this property alone does not delete the heavy data files causing high storage costs. Furthermore, it governs the logs rather than the actual deleted data files.
Reference:
https://www.cloudmatter.io/post/data-audit-with-databricks-delta-time-travel
NEW QUESTION # 30
You have an Azure Databricks workspace named Workspace! that uses a Git repository. The repository contains a Databricks notebook named Notebook1.
From the main branch, you create a feature branch named Branch! and commit changes to Notebooks Another user commits changes to Notebook1 in main.
When you attempt to merge Branch! into main, the merge fails due to conflicts.
You need to merge Branch! into the main branch. The solution must ensure that Notebook1 includes all the changes from both the branches.
What should you do?
Answer: B
Explanation:
The correct answer is D - apply the main branch changes to Branch1 and resolve the conflicts.
When a merge fails due to conflicts, the right workflow is to bring main's changes into the feature branch, resolve conflicts there, and then merge the clean feature branch into main. This is the standard Git conflict resolution pattern - resolve in the feature branch, not in main - because it protects the main branch from partial or broken states during resolution.
Option A (clone Branch1 as a new repository) creates a disconnected copy; it doesn't resolve the conflict and breaks the relationship with the remote. Option B (apply changes directly to main) bypasses the feature branch entirely and risks overwriting the other developer's work. Option C (clone main as a new repository) again creates a disconnected copy - none of Branch1's changes would be incorporated, and history would be lost.
Reference: https://learn.microsoft.com/en-us/azure/databricks/repos/git-operations-with-repos
NEW QUESTION # 31
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